Clutch and compressor comprising same
阅读说明:本技术 离合器及包括此的压缩机 (Clutch and compressor comprising same ) 是由 吴成泽 金民焕 金桢基 于 2018-06-20 设计创作,主要内容包括:本发明涉及离合器及包括此的压缩机,所述离合器包括:轴毂,紧固于压缩机的旋转轴,在位置被固定的状态下与所述旋转轴一同旋转;盘,紧固于所述轴毂可与所述轴毂一同旋转;皮带轮,从压缩机的驱动源接收动力进行旋转;弹性部件,紧固所述轴毂和所述盘,而且为使所述盘能够以所述轴毂为基准以接近或者远离所述皮带轮的方向移动而紧固所述轴毂与所述盘;励磁线圈组件,在施加电源时被磁化,使得所述盘和所述皮带轮接触或者隔开;及减振部件,介入于所述弹性部件和所述盘之间;其中,通过所述弹性部件和所述减振部件减少因为所述盘和所述皮带轮之间的接触及隔开而产生的噪音与振动。(The invention relates to a clutch and a compressor comprising the same, wherein the clutch comprises: a hub fastened to a rotating shaft of the compressor and rotating together with the rotating shaft in a fixed position; a disc secured to the hub for rotation therewith; a pulley receiving power from a driving source of the compressor to rotate; an elastic member that fastens the hub and the disc, and fastens the hub and the disc so that the disc can move in a direction approaching or separating from the pulley with reference to the hub; a field coil assembly magnetized such that the disc and the pulley are in contact or spaced apart when power is applied; and a damping member interposed between the elastic member and the disc; wherein noise and vibration generated due to contact and separation between the disc and the pulley are reduced by the elastic member and the vibration reduction member.)
1. A clutch (4) comprising:
a hub (62) that is fastened to a rotating shaft (3) of a compressor and that rotates together with the rotating shaft (3) in a fixed position;
a disc (66) secured to the hub (62) for rotation with the hub (62);
a pulley (5) which receives power from a driving source of the compressor and rotates;
an elastic member (64) that fastens the hub (62) and the disc (66), and fastens the hub (62) and the disc (66) so that the disc (66) can move in a direction approaching or separating from the pulley (5) with reference to the hub (62);
a field coil assembly (7) magnetized upon application of power such that the disc (66) and the pulley (5) are in contact or spaced apart; and
a damping member (68) interposed between the elastic member (64) and the disc (66);
wherein the elastic member (64) and the vibration damping member (68) reduce noise and vibration generated due to contact and separation between the disc (66) and the pulley (5), while reducing noise and vibration transmitted from the disc (66) to the elastic member (64).
2. Clutch (4) according to claim 1,
the damping member (68) includes a first damping member (682) that contacts the disc (66) and the elastic member (64) during contact and interval time between the disc (66) and the pulley (5).
3. Clutch (4) according to claim 2,
the elastic member (64) includes:
a first annular portion (642) fastened to the hub (62);
a second annular portion (644) forming an annulus housing the first annular portion (642) and fastened to the disc (66); and
a protruding portion (648) protruding from the first annular portion (642) toward the second annular portion (644);
wherein the first vibration damping member (682) is interposed between the protrusion (648) and the disc (66).
4. Clutch (4) according to claim 3,
the first annular portion (642) includes:
n first fastening portions (P11) arranged at equal intervals along the rotational direction and fastened to the boss (62), respectively;
n first intermediate portions (P12) interposed between each of the n first fastening portions (P11);
the second annular portion (644) includes:
n second fastening portions (P21) arranged at equal intervals in the rotation direction and fastened to the disk (66), respectively;
n second intermediate portions (P22) interposed between each of the n second fastening portions (P21);
n number of the projections (648) are formed;
each first intermediate portion (P12) overlaps each second fastening portion (P21) in the rotational radius direction;
each first fastening portion (P11) overlaps each second intermediate portion (P22) in the rotational radius direction;
each of the projecting portions (648) projects in the rotational radius direction from each of the first intermediate portions (P12) to a position facing each other with respect to the inner peripheral portion of the disk (66).
5. Clutch (4) according to claim 3,
the projection (648) and the first vibration damping member (682) are formed in such a manner that the first vibration damping member (682) is compressed between the projection (648) and the disc (66).
6. Clutch (4) according to claim 5,
the first vibration damping member (682) is fixed to the projecting portion (648);
the protrusion (648) presses the first vibration damping member (682) toward the disk (66).
7. Clutch (4) according to claim 5,
the first damping member (682) is fixed to the disc (66);
the protrusion (648) pressurizes the first vibration damping member (682).
8. Clutch (4) according to claim 5,
-designating the thickness of the first damping member (682) as a first dimension in a state in which the first damping member (682) is removed from between the protrusion (648) and the disc (66);
-designating the spacing between the lug (648) and the disc (66) as a second dimension in a state in which the first damping member (682) is removed from between the lug (648) and the disc (66) is spaced from the pulley (5);
a third dimension is defined as a space between the lug (648) and the disc (66) in a state where the first vibration damping member (682) is removed from between the lug (648) and the disc (66) is in contact with the pulley (5);
the first dimension is greater than the second dimension and the third dimension.
9. Clutch (4) according to claim 8,
when no external force is applied to the protruding portion (648), the protruding portion (648) and the first annular portion (642) are arranged on the same plane.
10. Clutch (4) according to claim 9,
the protrusion (648),
-in the case where the first damping member (682) is interposed between the lug (648) and the disc (66) with the disc (66) spaced from the pulley (5), the lug is deformed to the opposite side of the disc (66);
the projecting portion (648) returns to the flat surface side with the first vibration damping member (682) interposed between the projecting portion (648) and the disc (66) contacting the pulley (5).
11. Clutch (4) according to claim 8,
when no external force is applied to the projecting portion (648), the projecting portion (648) is bent toward the disk (66) with reference to a plane on which the first annular portion (642) is disposed.
12. Clutch (4) according to claim 11,
the protrusion (648),
in a case where the first vibration damping member (682) is interposed between the projecting portion (648) and the disc (66) with the disc (66) spaced from the pulley (5), the projecting portion is deformed in a direction in which the amount of bending decreases;
in a case where the first vibration damping member (682) is interposed between the projecting portion (648) and the disc (66) is in contact with the pulley (5), the projecting portion is restored in a direction in which the amount of bending increases.
13. Clutch (4) according to claim 3,
a rigidity adjusting hole (648a) penetrating the protruding portion (648) is formed in the protruding portion (648) to adjust the rigidity of the protruding portion (648).
14. Clutch (4) according to claim 2,
the damping member (68) further comprising a second damping member (684) in contact with the disc (66) and the resilient member (64) during the interval between the disc (66) and the pulley (5), the second damping member (684) being spaced from one of the disc (66) and the resilient member (64) during the contact between the disc (66) and the pulley (5);
the second damping member (684) spaces a contact surface (S2) between the elastic member (64) and the disc (66) from the same position as a contact surface (S1) between the elastic member (64) and the hub (62) toward the pulley (5) side during an interval time between the disc (66) and the pulley (5).
15. Clutch (4) according to claim 14,
the elastic member (64) includes:
a first annular portion (642) fastened to the hub (62);
a second annular portion (644) forming an annulus housing the first annular portion (642) and fastened to the disc (66); and
a bridge portion (646) connecting the first annular portion (642) and the second annular portion (644);
wherein a second damping member (684) is interposed between the disc (66) and at least one of the bridge portion (646) and the second annular portion (644).
16. Clutch (4) according to claim 15,
the first annular portion (642) includes:
n first fastening portions (P11) arranged at equal intervals along the rotation direction and fastened to the respective bosses (62);
n first intermediate portions (P12) interposed between each of the n first fastening portions (P11);
the second annular portion (644) includes:
n second fastening portions (P21) arranged at equal intervals along the rotation direction and fastened to the disc (66), respectively;
n second intermediate portions (P22) interposed between each of the n second fastening portions (P21);
n bridge parts (646) are formed;
each first intermediate portion (P12) overlaps each second fastening portion (P21) in the rotational radius direction;
each first fastening portion (P11) overlaps each second intermediate portion (P22) in the rotational radius direction;
each bridge part (646) is formed to extend from each first fastening part (P11) to each second intermediate part (P22) in the rotational radius direction;
the second damping member (684) is interposed between the disc (66) and at least one of the bridge portion (646) and the second intermediate portion (P22).
17. Clutch (4) according to claim 14,
the first damping member (682) and the second damping member (684) are formed integrally.
18. A clutch (4) comprising:
a hub (62) that is fastened to a rotating shaft (3) of a compressor and that rotates together with the rotating shaft (3) in a fixed position;
a disc (66) secured to the hub (62) for rotation with the hub (62);
a pulley (5) which receives power from a driving source of the compressor and rotates;
an elastic member (64) that fastens the hub (62) and the disc (66), and fastens the hub (62) and the disc (66) so that the disc (66) can move in a direction approaching or separating from the pulley (5) with reference to the hub (62);
a field coil assembly (7) magnetized upon application of power such that the disc (66) and the pulley (5) are in contact or spaced apart; and
a damping member (68) interposed between the elastic member (64) and the disc (66);
wherein the vibration damping member (68) includes:
a first damping member (682) in contact with the disc (66) and the elastic member (64) during contact and interval between the disc (66) and the pulley (5);
a second damping member (684) in contact with said disc (66) and with said elastic member (64) during the interval between said disc (66) and said pulley (5); and
a shielding film (686) covering at least a portion of the slit (66b) of the disc (66) in the space between the hub (62) and the disc (66).
19. Clutch (4) according to claim 18,
the shielding film (686) is integral with at least one of the first damping member (682) and the second damping member (684).
20. A compressor, comprising:
a housing (1);
a compression mechanism (2) which is disposed inside the housing (1) and compresses a refrigerant;
a rotary shaft (3) that transmits a rotational force from a drive source disposed outside the housing (1) to the compression mechanism (2); and
a power transmission mechanism selectively connecting and disconnecting the drive source and the rotary shaft (3);
wherein the power transmission mechanism is formed with a clutch (4) according to any one of claims 1 to 19.
Technical Field
The present invention relates to a clutch and a compressor including the same, and more particularly, to a clutch which can be magnetized and demagnetized and selectively connect and disconnect a driving source and a rotating shaft, and a compressor including the same.
Background
Generally, an Air Conditioning apparatus (a/C) for supplying cool Air and warm Air to a room is mounted in an automobile. Such an air conditioning apparatus includes, as a structure of a cooling and heating system, a compressor that compresses a low-temperature low-pressure gaseous refrigerant, which is introduced from an evaporator, into a high-temperature high-pressure gaseous refrigerant, which is delivered to a condenser.
The compressor is of a reciprocating type in which a refrigerant is compressed by reciprocating motion of a piston and a rotary type in which compression is performed while the refrigerant is rotated. As the reciprocating type, there are a crank type in which a driving source is transmitted to a plurality of pistons using a crank, a swash plate type in which a driving source is transmitted to a rotary shaft provided with a swash plate, and the like, according to a driving source transmission method; the rotary type includes a vane rotary type using a rotary shaft and a vane, and a scroll type using an orbiting scroll and a fixed scroll.
Such a compressor generally includes a rotary shaft transmitting a rotational force to a compression mechanism compressing a refrigerant, and includes a clutch selectively connecting and disconnecting a driving source (such as an engine) of the compressor with and from the rotary shaft to selectively receive power from the driving source to operate.
Specifically, the compressor includes: a housing; a compression mechanism disposed inside the housing and compressing a refrigerant; a rotary shaft that transmits a rotational force from a drive source (e.g., an engine) provided outside the housing to the compression mechanism; and a clutch selectively connecting and disconnecting the driving source and the rotating shaft.
Referring to korean registered patent publication No. 10-1339809, the clutch includes: a hub fastened to a rotating shaft to be rotatable together with the rotating shaft; a disc secured to the hub for rotation therewith; a pulley receiving power from a driving source to rotate; an elastic member that fastens the hub and the disc, and applies an elastic force to the disc in a direction in which the disc moves away from the pulley while fastening the hub and the disc, so that the disc can move in a direction away from or toward the pulley with reference to the hub; and a field coil assembly magnetized when power is applied to move the disc toward the pulley side, thereby contacting the disc with the pulley.
Here, the hub, the elastic member, and the disc form a so-called disc hub assembly.
The compressor of this structure operates as follows.
That is, the pulley receives a driving force from the driving source to rotate.
In this state, when power is applied to the field coil assembly, an attractive force is generated by magnetic induction of the field coil assembly, and the disc moves into contact with the pulley toward the pulley side by the attractive force. That is, since the disk and the pulley are fastened, the power of the drive source is transmitted to the rotary shaft through the pulley, the disk, the elastic member, and the hub. Then, the rotary shaft operates the compression mechanism with the received power to compress the refrigerant.
Conversely, if the application of power to the field coil assembly is interrupted, the attraction force is no longer generated by the magnetic induction of the field coil assembly, but the disc is spaced apart from the pulley by the elastic member moving in a direction away from the pulley. That is, the transmission of power from the drive source to the rotary shaft is interrupted. Then, the compression mechanism is interrupted from operating, and the compression of the refrigerant is interrupted.
However, the conventional clutch and the compressor included in the clutch have a problem that noise and vibration generated by contact and separation between the pulley and the disc cannot be reduced. That is, there are problems as follows: considerable noise and vibration may occur when the pulley collides with the disk, the noise and vibration generated when the pulley rotates together in a state of being in contact with the disk are transmitted to the compressor, and considerable noise and vibration may occur when the pulley is spaced apart from the disk due to repulsive force of the disk.
Disclosure of Invention
Technical problem
Accordingly, an object of the present invention is to provide a clutch capable of reducing noise and vibration generated due to contact and separation between a pulley and a disc, and a compressor including the same.
Means for solving the problems
In order to achieve the above object, the present invention provides a clutch including: a hub fastened to a rotating shaft of the compressor and rotating together with the rotating shaft in a fixed position; a disc secured to the hub for rotation therewith; a pulley receiving power from a driving source of the compressor to rotate; an elastic member that fastens the hub and the disc, and fastens the hub and the disc so that the disc can move in a direction approaching or separating from the pulley with reference to the hub; a field coil assembly magnetized such that the disc and the pulley are in contact or spaced apart when power is applied; and a damping member interposed between the elastic member and the disc; wherein the elastic member and the vibration reduction member reduce noise and vibration generated due to contact and separation between the disc and the pulley, while reducing noise and vibration transmitted from the disc to the elastic member.
The damping member includes a first damping member that contacts the disc and the elastic member during a contact interval between the disc and the pulley.
The elastic member includes: a first annular portion secured to the hub; a second annular portion forming an annulus housing the first annular portion and secured to the disc; and a protruding portion protruding from the first annular portion to the second annular portion side; wherein the first vibration damping member may be interposed between the protrusion and the disc.
The first annular portion includes: n first fastening portions arranged at equal intervals in the rotational direction and fastened to the boss, respectively; n first intermediate portions interposed between each of the n first fastening portions. The second annular portion includes: n second fastening portions arranged at equal intervals in the rotation direction and fastened to the disk, respectively; n second intermediate portions interposed between each of the n second fastening portions. The number of the convex parts is n; each of the first intermediate portions overlaps each of the second fastening portions in the rotational radius direction; each first fastening portion overlaps each second intermediate portion in the rotational radius direction; each of the projecting portions may project in a rotational radius direction from each of the first intermediate portions to a position facing each other with the disk inner peripheral portion.
The protrusion and the first damping member may be such that the first damping member is compressed between the protrusion and the disc.
The first vibration damping member is fixed to the projecting portion; the protrusion may press the first vibration damping member toward the disk side.
The first damping member is fixed to the disc; the projection may pressurize the first vibration damping member.
A thickness of the first damping member is referred to as a first dimension in a state where the first damping member is removed from between the protrusion and the disc; a space between the boss and the disc is referred to as a second size in a state where the first damping member is removed from between the boss and the disc is spaced from the pulley; a third dimension is said to be a space between said protrusion and said disc in a state where said first damping member is removed from between said protrusion and said disc is in contact with said pulley; the first dimension may be greater than the second dimension and the third dimension.
The protrusion may be disposed on the same plane as the first ring part if no external force is applied to the protrusion.
For the projecting portion, the projecting portion may be deformed to an opposite side of the disc with the first vibration reduction member interposed therebetween and the disc spaced from the pulley; the protrusion may be restored to the flat surface side with the first vibration reduction member interposed between the protrusion and the disc being in contact with the pulley.
When no external force is applied to the projecting portion, the projecting portion is bendable toward the disk side with reference to a plane on which the first annular portion is disposed.
For the projecting portion, the projecting portion is deformable in a direction in which an amount of bending decreases with the first vibration damping member interposed between the projecting portion and the disc being spaced apart from the pulley; in a case where the first vibration damping member is interposed between the projecting portion and the disc is in contact with the pulley, the projecting portion can be restored in a direction in which the amount of bending increases.
A rigidity adjusting hole may be formed in the protrusion to penetrate the protrusion to adjust the rigidity of the protrusion.
The damping member further includes a second damping member contacting the disc and the elastic member during an interval time between the disc and the pulley, the second damping member being spaced apart from one of the disc and the elastic member during the interval time between the disc and the pulley; the second vibration reduction member may be spaced apart from the contact surface between the elastic member and the disc toward the pulley side from the same position as the contact surface between the elastic member and the hub during the interval time between the disc and the pulley.
The elastic member includes: a first annular portion secured to the hub; a second annular portion forming an annulus housing the first annular portion and secured to the disc; and a bridge portion connecting the first annular portion and the second annular portion; wherein a second damping member is interposeable between the disc and at least one of the bridge portion and the second annular portion.
The first annular portion includes: n first fastening portions arranged at equal intervals in the rotational direction and fastened to the respective hubs, respectively; n first intermediate portions interposed between each of the n first fastening portions. The second annular portion includes: n second fastening portions arranged at equal intervals along the rotation direction and fastened to the disks, respectively; n second intermediate portions interposed between each of the n second fastening portions; n bridge parts are formed; each first intermediate portion overlaps each second fastening portion in the rotational radius direction; each first fastening portion overlaps each second intermediate portion in the rotational radius direction; each bridge part extends from each first fastening part to each second middle part in the rotation radius direction; the second vibration damping member may be interposed between the disk and at least one of the bridge portion and the second intermediate portion.
The first damping member and the second damping member may be formed in one body.
Then, the present invention provides a clutch comprising: a hub fastened to a rotating shaft of the compressor and rotating together with the rotating shaft in a fixed position; a disc secured to the hub for rotation therewith; a pulley receiving power from a driving source of the compressor to rotate; an elastic member that fastens the hub and the disc, and fastens the hub and the disc so that the disc can move in a direction approaching or separating from the pulley with reference to the hub; a field coil assembly magnetized such that the disc and the pulley are in contact or spaced apart when power is applied; and a vibration damping member interposed between the elastic member and the disk member. The vibration damping member includes: a first damping member contacting the disc and the elastic member during a contact interval between the disc and the pulley; a second damping member contacting the disc and the elastic member during an interval between the disc and the pulley; and a shielding film covering at least a part of the slit of the disk and a space between the hub and the disk.
The shielding film may be integrated with at least one of the first vibration damping member and the second vibration damping member.
Then, the present invention comprises: a housing; a compression mechanism disposed inside the housing and compressing a refrigerant; a rotary shaft that transmits a rotational force from a drive source disposed outside the housing to the compression mechanism; and a power transmission mechanism selectively connecting and disconnecting the driving source and the rotating shaft. The power transmission mechanism may be formed with the clutch.
ADVANTAGEOUS EFFECTS OF INVENTION
The clutch of the invention and the compressor comprising the same comprise: a hub fastened to a rotating shaft of the compressor and rotatable together with the rotating shaft in a fixed position; a disc secured to the hub for rotation therewith; a pulley receiving power from a driving source of the compressor to rotate; an elastic member that fastens the hub and the disc and fastens the hub and the disc so that the disc can move in a direction approaching or separating from the pulley with reference to the hub; a field coil assembly magnetized such that the disc is in contact with or spaced apart from the pulley when power is applied; and a damping member interposed between the elastic member and the disc; noise and vibration generated due to contact and separation between the disc and the pulley are reduced by the elastic member and the vibration reduction member.
Drawings
Fig. 1 is a sectional view showing a compressor including a clutch;
FIG. 2 illustrates an exploded perspective view of a clutch according to an embodiment of the present invention;
FIG. 3 is an exploded perspective view showing the hub assembly of FIG. 2;
fig. 4 is a plan view showing an assembled state of the clutch of fig. 2;
FIG. 5 is a bottom view of FIG. 4 with the pulley removed;
FIG. 6 is a bottom view of FIG. 4 with the pulley and disc removed;
FIG. 7 is a sectional view taken along line I-I of FIG. 4;
FIG. 8 is an enlarged view of portion A of FIG. 7 with the disc spaced from the pulley;
FIG. 9 is an enlarged view of portion B of FIG. 7 with the disc spaced from the pulley;
FIG. 10 is an enlarged view of portion A of FIG. 7 with the disk in contact with the pulley;
FIG. 11 is an enlarged view of portion B of FIG. 7 with the disk in contact with the pulley;
FIG. 12 is a plan view of a clutch according to another embodiment of the present invention;
FIG. 13 is a sectional view taken along line II-II of FIG. 12 with the disc spaced from the pulley;
FIG. 14 is a cross-sectional view taken along line III-III of FIG. 12 with the disc spaced from the pulley;
FIG. 15 is a sectional view taken along line II-II of FIG. 12 with the disc in contact with the pulley;
FIG. 16 is a cross-sectional view taken along line III-III of FIG. 12 with the disc in contact with the pulley;
FIG. 17 is an exploded perspective view of the hub assembly shown in the clutch of FIG. 12;
FIG. 18 is a cross-sectional view taken along line IV-IV of FIG. 17, showing the resilient member in a removed condition from the hub assembly;
FIG. 19 is a perspective view showing a hub assembly in a clutch according to another embodiment of the present invention;
fig. 20 is an exploded perspective view of fig. 19.
Detailed Description
Hereinafter, a clutch and a compressor including the same according to the present invention will be described in detail with reference to the accompanying drawings.
Fig. 1 is a sectional view showing a compressor including a clutch; FIG. 2 illustrates an exploded perspective view of a clutch according to an embodiment of the present invention; FIG. 3 is an exploded perspective view showing the hub assembly of FIG. 2; fig. 4 is a plan view showing an assembled state of the clutch of fig. 2; FIG. 5 is a bottom view of FIG. 4 with the pulley removed; FIG. 6 is a bottom view of FIG. 4 with the pulley and disc removed; FIG. 7 is a sectional view taken along line I-I of FIG. 4; FIG. 8 is an enlarged view of portion A of FIG. 7 with the disc spaced from the pulley; FIG. 9 is an enlarged view of portion B of FIG. 7 with the disc spaced from the pulley; FIG. 10 is an enlarged view of portion A of FIG. 7 with the disk in contact with the pulley; fig. 11 is an enlarged view of part B of fig. 7 in a state where the disc is in contact with the pulley.
Referring to fig. 1, a compressor according to an embodiment of the present invention may include: a
The compression mechanism 2 may include: a
One end of the
The power transmission mechanism may be formed of an electronic clutch (hereinafter, referred to as a clutch) 4, which is magnetized to connect the drive source (not shown) and the
Referring to fig. 2 to 11, the clutch 4 may include: a
The
Then, a friction surface that can contact a
The
Here, the
The
Hub-
Here, the
The
Then, the
The
Then, when the power supply to the field coil assembly 7 is cut off, the
Here, the
Specifically, when the
In view of the above, the case of the present embodiment also has a
In more detail, the
The first
Then, first annular portion-
The second
Then, second ring-shaped part
At this time, in the
The
The three
Then, a
Here, in order to form the
The
The first
Here, the
That is, the thickness of the first damping
Then, the damping
The second damping
Here, with respect to the
That is, the thickness of the second damping
The field coil assembly 7 may include a coil housing and a coil that is received in the coil housing and generates electromagnetic force when power is applied.
The compressor of the present embodiment having such a structure can be operated as follows,
that is, the
In this state, when power is applied to the coil, the
Conversely, if the power supply to the coil is cut off, the
Here, the clutch 4 and the compressor including the same of the present embodiment include the
Specifically, the clutch 4 of the present embodiment and the compressor including the same include the
That is, the first
Then, the first
Then, the first
Then, the clutch 4 and the compressor including the same of the present embodiment further include the second damping
That is, the second damping
Then, the second damping
On the other hand, the second damping
On the other hand, in the case of the present embodiment, the first
On the other hand, in the case of the present embodiment, in order to keep the first
On the other hand, in the case of the present embodiment, the
On the other hand, in the case of the present embodiment, the second damping
On the other hand, in the case of the present embodiment, the second damping
In the present embodiment, the first damping
On the other hand, as shown in fig. 19 and 20, the damping
On the other hand, in the case of the present embodiment, the
On the other hand, in the case of the present embodiment, SUS, steel (steel) is exemplified as the
On the other hand, in the case of the present embodiment, when the field coil assembly 7 is magnetized, the
Industrial availability
The invention provides a clutch capable of reducing noise and vibration generated by contact and separation between a pulley and a disc and a compressor comprising the same.
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