阅读说明：本技术 一种多功能油箱出油嘴 (Multifunctional oil tank oil outlet nozzle ) 是由 陈健 徐露明 乐起奖 于 2020-05-25 设计创作，主要内容包括：一种多功能油箱出油嘴,包括一个油管接嘴,一个安装锁母,一个油箱密封圈,一个本体,一个旋钮以及一个压板。所述旋钮安装于本体上,通过压板固定,所述本体包括一个锥形盲孔,一个进油部和一个出油部,所述安装锁母安装于所述进油部,所述油管接嘴安装于所述出油部,所述旋钮包括一个旋转手柄和一个芯轴,所述芯轴为一个圆锥体,包括一个台阶孔,所述锥形盲孔与所述芯轴之圆锥体配合设计,两者锥面角度之基本尺寸相同,配合间隙不大于0.1mm,所述进油部、出油部与所述台阶孔组成内部燃油通道。该多功能油箱出油嘴排气性能好,布置方便,结构简单,且兼容开关功能以及备用储油功能的油箱出油嘴。(The utility model provides a multi-functional oil tank goes out oil nozzle, includes that an oil pipe connects the mouth, an installation lock is female, an oil tank sealing washer, a body, a knob and a clamp plate. The knob is installed on the body, and is fixed through the clamp plate, the body includes a toper blind hole, an oil inlet portion and an oil portion that produces, the installation lock nut install in oil inlet portion, the oil pipe nipple install in the oil portion that produces, the knob includes a twist grip and a dabber, the dabber is a cone, including a step hole, the toper blind hole with the cone cooperation design of dabber, the basic size of both conical surface angles is the same, and the fit clearance is not more than 0.1mm, oil inlet portion, oil portion with inside fuel passageway is constituteed in the step hole. The multifunctional oil tank oil outlet nozzle has the advantages of good exhaust performance, convenience in arrangement, simple structure and compatibility with a switch function and a standby oil storage function.)

1. A multifunctional oil tank outlet nozzle comprises an oil pipe connector, an installation locking nut and an oil tank sealing ring, and is characterized by also comprising a body, a knob and a pressing plate, wherein the knob is arranged on the body and is fixed by the pressing plate,

the body comprises a conical blind hole, an oil inlet part and an oil outlet part, the mounting lock nut is mounted at the oil inlet part, the oil pipe joint is mounted at the oil outlet part,

the knob comprises a rotary handle and a mandrel, the mandrel is a cone and comprises a step hole,

the conical blind hole and the cone of the mandrel are designed in a matched mode, the basic size of the angle of the conical surfaces of the conical blind hole and the cone of the mandrel is the same, the matching clearance is not larger than 0.1mm, and the oil inlet portion, the oil outlet portion and the stepped hole form an internal fuel oil channel.

2. The multi-functional fuel tank nozzle as defined in claim 1, wherein said fuel inlet portion includes a main passage and an auxiliary passage, and said fuel outlet portion includes a fuel outlet passage.

3. A multi-functional fuel tank nozzle as claimed in claim 2, wherein said main passage and said secondary passage are switched by a stepped bore of said mandrel, said main passage being connected when the small bore end of said stepped bore abuts said fuel inlet, and said main passage and said secondary passage being simultaneously connected when the large bore end of said stepped bore abuts said fuel inlet.

4. The multi-functional fuel tank outlet nozzle of claim 3, wherein the diameter of the small hole end of the stepped hole and the diameter of the main channel are designed to be not less than 4mm to ensure smooth discharge of bubbles in the pipeline.

5. The multi-functional fuel tank outlet nozzle of claim 4, including a fluid level tube, said fluid level tube being a metal tube mounted above the main channel, wherein fuel below the fluid level tube is prevented from entering the internal fuel channel when only the main channel is open.

6. A multi-functional fuel tank nozzle according to any one of claims 1 to 5, wherein the circumferential position of said stem is switched by turning a handle, and the nozzle stops discharging fuel when the stepped hole of the stem is turned to a horizontal position.

7. A multi-functional fuel tank outlet as defined in claim 1, including a pen test cartridge, said pen test cartridge being mounted to said inlet of said fuel inlet.

Technical Field

The present invention relates to a fuel tank for an internal combustion engine, and more particularly to a fuel tank for a spark ignition type internal combustion engine mounted on a vehicle such as a motorcycle or a power plant and supplied with fuel by a fuel injection system.

Background

Due to the outstanding environmental problems, national regulations also tighten the routing and successive coming of dense drums, in the face of severe vehicle emission standards, carburetor systems of motorcycles and the like are gradually replaced by electronic control fuel injection systems, which are effective schemes for reducing the fuel consumption and harmful substance emission of small engine systems (such as motorcycles, general power machines and the like) and improving the driving (operating) performance.

In automatically controlled fuel injection system, through the tube coupling between oil tank and the fuel injection unit, usually realize through welding out the oil nozzle on the oil tank, when connecting line between the fuel injection system of needs disconnection, for example when changing the accessory, need look for the clamp and cut off the oil circuit earlier, the operation is difficult, even can't operate when can't finding the instrument.

In addition, since the oil passage of the fuel injection system is closed, the operation stability is greatly affected by fuel vapor (bubbles) inside the oil passage, and if the bubbles are accumulated too much, a vapor lock phenomenon such as fuel supply interruption may be caused, and the fuel vapor (bubbles) inside the oil passage may be generated due to internal residual air, high temperature, local vacuum, and the like, which is inevitable, and how to remove the bubbles in the oil passage is an important issue.

The fuel injection system commonly used for the automobile adopts an embedded electronic oil pump arranged in a fuel tank to keep a certain pressure in an oil circuit all the time, and fuel in the oil circuit flows circularly, so that the generation and the accumulation of bubbles are prevented. However, the system applied to motorcycles or general power machines has the disadvantages of being too complex, difficult in design and arrangement, high in cost and the like.

The electromagnetic driving pulse type fuel injection device for low-pressure fuel supply is a valuable fuel injection system for motorcycles, general power machines and the like because of the advantages of high functional integration level, low requirement on design change of fuel tanks and the like, and is an important research subject for the problem of exhaust bubbles of a low-pressure oil path of the system.

Disclosure of Invention

This application is to above-mentioned problem, and its aim at provides an exhaust performance is good, arranges the convenience, simple structure, and compatible switch function and reserve oil storage function's oil tank goes out oil nozzle.

In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a multi-functional oil tank goes out oil nozzle, includes that an oil pipe connects the mouth, an installation lock is female, an oil tank sealing washer, a body, a knob and a clamp plate. The oil tank sealing ring is used for

The body includes a toper blind hole, an oil feed portion and an oil portion that produces, toper blind hole and oil feed portion, the portion intercommunication that produces oil. The knob comprises a rotary handle and a mandrel, the mandrel is a cone, and the mandrel comprises a step hole perpendicular to an axial plane. The conical blind hole and the cone of the mandrel are designed in a matched mode, the basic size of the angle of the conical surfaces of the conical blind hole and the cone of the mandrel is the same, and the matching clearance is not larger than 0.1 mm. The mandrel is installed in the tapered blind hole of the body and is fixedly installed through the pressing plate, so that the stepped hole is aligned to the oil inlet portion and the oil outlet portion to form an internal fuel oil channel. The rotating handle is arranged on

The oil inlet portion includes an annular, the installation lock nut includes a lock nut jump ring, and the installation lock nut is connected to oil inlet portion through the lock nut jump ring, and the installation lock nut can rotate by body relatively.

The oil outlet part comprises an installation buckle, the oil pipe joint nozzle comprises a convex ring, the oil pipe joint nozzle is clamped into the installation buckle through axial acting force of the extending convex ring to realize fixation, and the oil pipe joint nozzle and the oil outlet part are sealed through a sealing ring.

Further, oil feed portion includes main entrance and auxiliary passage, oil outlet portion includes an oil outlet passage. The main channel and the auxiliary channel are switched through the stepped hole of the mandrel, the main channel is communicated when the small hole end of the stepped hole is in butt joint with the oil inlet part, and the main channel and the auxiliary channel are simultaneously communicated when the large hole end of the stepped hole is in butt joint with the oil inlet part. The small hole end of the stepped hole is designed to be the same as the main channel in diameter, and the diameter of the small hole end is not smaller than 4mm, so that bubbles in the pipeline can be discharged smoothly, and the diameter of the large hole end of the stepped hole is larger than or equal to that of the oil inlet channel of the oil inlet part when the auxiliary channel is opened. The rotation of dabber is realized through the handle, and when the dabber was rotated to the step hole level, oil outlet nozzle closed.

The multifunctional oil tank oil outlet nozzle comprises a liquid level pipe and a pen test filter element. The liquid level pipe is a metal pipe and is arranged on the main channel and used for limiting oil entering the main channel, and when only the main channel is communicated, the oil below the height of the liquid level pipe cannot enter the internal oil channel. The pen test filter core is installed in the liquid inlet portion, and the metal tube is arranged inside the pen test filter core, and fuel is exported by the oil outlet after the pen test filter core filters in the oil tank.

The following technical solutions further define or optimize the present application.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of a multi-functional fuel tank nozzle according to the present invention.

FIG. 2 is a partial cross-sectional view of a multi-functional fuel tank nozzle provided by the present invention.

Detailed Description

The invention is further described below with reference to the figures and examples.

The structure of the multi-functional oil tank outlet nozzle of the present application is schematically shown in fig. 1, and includes an oil pipe connector 105, a mounting nut 111, a tank gasket 113, a body 102, a knob 107 and a pressure plate 109.

As shown in fig. 2, which is a schematic partial sectional structure view of the oil outlet nozzle of the multifunctional oil tank provided by the present invention, the body 102 includes a tapered blind hole 200, an oil inlet portion 101 and an oil outlet portion 103, and the tapered blind hole 200 is communicated with the oil inlet portion 101 and the oil outlet portion 103. The knob 107 includes a rotating handle 107b and a spindle 107a, the spindle 107a is a cone 202, and the spindle 107a includes a stepped bore 203 perpendicular to the axial plane. The tapered blind hole 200 and the taper 202 of the mandrel 107a are designed in a matching way, the basic size of the taper angle is the same, and the matching clearance is not more than 0.1 mm. The spindle 107a is installed in the tapered blind hole 200 of the body 102, the spindle 107a and the body 102 are sealed through a sealing ring 204, and a rotating handle 107b is integrally designed with the spindle 107a and used for adjusting the circumferential position of the spindle 107 a.

The oil inlet portion 101 includes a main passage 206 and a sub passage 205, and the oil outlet portion 103 includes an oil outlet passage 207. The multifunctional oil tank nozzle comprises a liquid level pipe 112 and a pen test filter element 114. The level tube 112 is a metal tube that is mounted above the main passage 206 to restrict oil entering the main passage 206, and when only the main passage 206 is open, oil below the level tube 112 cannot enter the internal fuel passage. The pen test filter element 114 is installed in the liquid inlet portion, the liquid level pipe 112 is arranged inside the pen test filter element 114, and fuel in the fuel tank is filtered by the pen test filter element 114 and then is output by the fuel pipe connector 105.

The main passage 206 and the sub passage 205 are switched by the stepped hole 203 of the spindle 107a, when the rotary handle 107b is rotated to the opening indicating position, the small hole 203b end of the stepped hole 203 is connected to the oil inlet 101, the main passage 206 is connected, when the rotary handle 107b is rotated to the standby indicating position, the large hole 203a end of the stepped hole 203 is connected to the oil inlet 101, and the main passage 206 and the sub passage 205 are simultaneously connected. The small hole 203b end of the stepped hole 203 has the same aperture design as the main channel 206, and the diameter is not less than 4mm, so as to ensure the smooth discharge of the bubbles in the pipeline, and the large hole 203a end of the stepped hole 203 has an aperture larger than or equal to the sum of the oil inlet flow passages of the oil inlet part 101 when the auxiliary channel 205 is opened. When the rotating handle 107b is rotated to the closing indicating position, that is, the spindle 107a is rotated to the level of the stepped hole 203, the oil outlet of the oil pipe nipple 105 is stopped.

The pressing plate 109 includes two rivet holes 109a, the body 102 includes two rivets 102a corresponding to the rivet holes 109a and a pressing plate positioning surface 102b, and the body 102 may be formed by die casting. The rivet hole 109a of the pressure plate 109 is correspondingly arranged in the rivet 102a, the pressure plate 109 is fixed tightly against the pressure plate positioning surface 102b in a riveting mode, meanwhile, the knob 107 is fixed in the body 102, and a butterfly reed 108 is arranged between the knob 107 and the pressure plate 109 and used for limiting the position of the knob 107, so that the stepped hole 203 is aligned with the oil inlet part 101 and the oil outlet part 103 to form an internal fuel oil channel. Further, since butterfly reed 108 is small in mounting contact area, frictional resistance when knob 107 is rotated can be reduced.

Oil feed portion 101 includes an annular 101a, installation lock mother 111 includes a lock mother jump ring 110, and lock mother jump ring 110 is installed to annular 101a in, and installation lock mother 111 is connected to oil feed portion 101 through lock mother jump ring 110, and installation lock mother 111 can be relative body 102 free rotation.

The oil outlet part 103 comprises an installation buckle 103a, the installation buckle 103a is a clamping jaw arranged in the circumferential direction, the oil pipe connector 105 comprises a convex ring 105a, the oil pipe connector 105 is clamped into the installation buckle 103a through axial acting force of the convex ring 105a, the installation buckle 103a is reversely buckled on the convex ring 105a to realize fixation, and the oil pipe connector 105 and the oil outlet part 103 are sealed through a sealing ring 104.

The above examples are only for illustrating the essence of the present invention, but not for limiting the present invention. Any modifications, simplifications, or other alternatives made without departing from the principles of the invention are intended to be included within the scope of the invention.

The present invention is not concerned with parts which are the same as or can be implemented using prior art techniques.