阅读说明：本技术 一种双缸混合器 (Double-cylinder mixer ) 是由 彭世彬 何欣 何柱怀 冉启舸 于 2020-06-09 设计创作，主要内容包括：为了解决现有混合器供气不均匀的问题,本申请提供了一种双缸混合器,包括混合器腔体,混合器腔体内设置有左混合腔和右混合腔；混合器腔体下方还设置有油底壳,油底壳内设置有隔板,通过隔板将油底壳分为左腔室和右腔室,油底壳侧面还设置有注油口,注油口与左腔室和右腔室贯通；所述混合器腔体上还设置有两个或两个以上的进气孔,通过进气孔将左混合腔与左腔室连通,以及通过进气孔将右混合腔与右腔室连通,所述进气孔的直径小于进气孔的深度。本申请将油底壳设置在混合器腔体下方,缩短混合器供气距离,确保混合器在不同工况下均具有充足的进气量,解决现有混合器供气不均匀等问题。(In order to solve the problem of uneven gas supply of the existing mixer, the application provides a double-cylinder mixer which comprises a mixer cavity, wherein a left mixing cavity and a right mixing cavity are arranged in the mixer cavity; an oil pan is further arranged below the mixer cavity, a partition plate is arranged in the oil pan, the oil pan is divided into a left cavity and a right cavity through the partition plate, and an oil injection port is further formed in the side face of the oil pan and is communicated with the left cavity and the right cavity; the mixer cavity is also provided with two or more air inlets, the left mixing cavity is communicated with the left cavity through the air inlets, the right mixing cavity is communicated with the right cavity through the air inlets, and the diameters of the air inlets are smaller than the depths of the air inlets. This application sets up the oil pan in blender cavity below, shortens blender air feed distance, ensures that the blender all has sufficient air input under different work condition, solves the inhomogeneous scheduling problem of current blender air feed.)

1. A double-cylinder mixer comprises a mixer cavity (3), wherein a left mixing cavity and a right mixing cavity are arranged in the mixer cavity (3); an oil pan (1) is further arranged below the mixer cavity (3), a partition plate is arranged in the oil pan (1), the oil pan (1) is divided into a left cavity (101) and a right cavity (102) through the partition plate, an oil filling port (103) is further arranged on the side face of the oil pan (1), and the oil filling port (103) is communicated with the left cavity (101) and the right cavity (102); the mixer cavity (3) is also provided with two or more air inlets (302), the left mixing cavity is communicated with the left cavity (101) through the air inlets (302), the right mixing cavity is communicated with the right cavity (102) through the air inlets (302), and the diameters of the air inlets (302) are smaller than the depths of the air inlets (302).

2. The double-cylinder mixer according to claim 1, characterized by further comprising an intake nozzle (2), wherein the intake nozzle (2) is matched with the intake port (103), the end of the intake nozzle (2) is provided with an oil distribution port (201), and the oil distribution port (201) is communicated with the left chamber (101) and the right chamber (102).

3. The double-cylinder mixer according to claim 1 or 2, characterized in that the oil sump is provided with a first groove (104) around the left chamber (101) and a second groove (105) around the right chamber (102).

4. The double-cylinder mixer according to claim 1 or 2, characterized in that the sump side wall is provided with a through hole (106), which through hole (106) is in communication with an air inlet (103).

5. The double cylinder mixer according to claim 1 or 2, characterized in that a throat (303) is provided in the mixing chamber (301), the throat (303) being provided with an inlet hole (302).

6. The twin-cylinder mixer according to claim 1 or 2, characterised in that the inlet vents (302) comprise a first inlet vent (3021) and a second inlet vent (3022), the first inlet vent (3021) axis being arranged perpendicular to the mixing chamber (301) axis, the second inlet vent (3022) axis being arranged at an oblique angle to the mixing chamber (301) axis.

7. The twin cylinder mixer according to claim 5, characterised in that the inlet vents (302) comprise a first inlet vent (3021) and a second inlet vent (3022), the first inlet vent (3021) axis being arranged perpendicular to the mixing chamber (301) axis, the second inlet vent (3022) axis being arranged at an oblique angle to the mixing chamber (301) axis.

8. The twin cylinder mixer according to claim 6, characterised in that a choke valve is arranged in the mixing chamber (301), the outlet of the first inlet port (3021) and the outlet of the second inlet port (3022) being located on either side of the choke valve.

9. The twin-cylinder mixer according to claim 7 or 8, characterised in that two or more mixing chambers (301) are provided in the cavity (3), the number of inlet orifices (302) of each mixing chamber (301) being different.

10. The twin-cylinder mixer according to claim 6, characterised in that two or more mixing chambers (301) are provided in the cavity (3), the number of inlet orifices (302) of each mixing chamber (301) being different.

Technical Field

The invention relates to the technical field of engine carburetors, in particular to a double-cylinder mixer.

Background

The mixer is a mechanical device which mixes a certain proportion of combustible gas with air under the action of vacuum generated by the operation of an engine. As a precise mechanical device, the device utilizes the kinetic energy of the sucked air flow to realize the dilution of combustible gas. In order to improve the dilution efficiency of combustible gas and ensure that the combustible gas can be fully combusted, a double-cylinder mixer is provided in the prior art; for example, chinese patent CN201910322421.9 discloses a dual-chamber carburetor, which adopts a large-caliber air inlet pipe connected into a carburetor cavity, wherein the air inlet pipe supplies air through an external oil tank, and the air supply mode is that due to the long distance, the combustible gas will have pressure loss in the pipeline, resulting in insufficient pressure of the combustible gas entering the carburetor cavity or insufficient combustible gas, and further resulting in insufficient power of the engine; similarly, when the gas supply device is applied to the gas field, the problem of insufficient gas supply can also exist, the common solution is to increase the output pressure of the gas supply input into the gas pump, so as to ensure that the combustible gas can have enough gas inlet amount at the tail end of the gas inlet mixer, and the common solution not only increases the equipment cost, but also causes the phenomena of overlarge gas supply amount, namely over-concentrated gas supply and the like, and also causes the power reduction.

Disclosure of Invention

In order to solve the inhomogeneous problem of current blender air feed, this application provides a double-cylinder blender, and its aim at improves the air input of blender, improves the homogeneity that the interior oil gas of double-cylinder blender mixes, ensures the power of engine.

The invention is realized by the following steps: a double-cylinder mixer comprises a mixer cavity, wherein a left mixing cavity and a right mixing cavity are arranged in the mixer cavity; an oil pan is further arranged below the mixer cavity, a partition plate is arranged in the oil pan, the oil pan is divided into a left cavity and a right cavity through the partition plate, and an oil injection port is further formed in the side face of the oil pan and is communicated with the left cavity and the right cavity; the mixer cavity is also provided with two or more air inlets, the left mixing cavity is communicated with the left cavity through the air inlets, the right mixing cavity is communicated with the right cavity through the air inlets, and the diameters of the air inlets are smaller than the depths of the air inlets.

When the mixer is used specifically, the oil pan is of a shell structure, wherein one surface of the oil pan is open, the other five surfaces of the oil pan are closed to form a closed shell capable of storing oil, and the shell can be fixed below the mixer cavity by butting the open surface with the mixer cavity; the oil sump is internally provided with an integrally arranged baffle plate to divide the oil storage space into two chambers, namely a left chamber and a right chamber, wherein the left chamber corresponds to the left mixing chamber of the mixer and is communicated with the left mixing chamber of the mixer through an air inlet; the right cavity corresponds to the right mixing cavity of the mixer cavity and is also communicated by an air inlet; and an oil injection port is also integrally arranged on the side surface of the oil pan and is communicated with the left cavity and the right cavity. Outside combustible gas or gas pass through the oiling mouth and get into the casing, store respectively in left cavity and right cavity, let the engine when needing, directly inhale combustible gas in two cavities through the oil gas mixing chamber of blender, accomplish combustible gas's supply.

Compared with the prior art, the application has at least the following beneficial effects:

(1) the oil pan is arranged below the cavity of the mixer, so that the air supply distance of the mixer is shortened, the mixer is ensured to have sufficient air input under different working conditions, the problem of uneven air supply of the existing mixer is solved, and the power of an engine is ensured;

(2) after the baffle plate is arranged in the oil pan, the mixing chambers in the mixer cavity respectively correspond to different chambers, so that different air input of different mixing chambers can be controlled, and the mixer is more suitable for use under different working conditions of an engine;

(3) the air inlet speed is improved by arranging the plurality of air inlets; simultaneously, each air inlet hole is set to be smaller than the depth of the air inlet hole in diameter, so that a plurality of fine hole structures are formed, the air inflow is convenient to control, and the air inlet effect is improved.

Drawings

FIG. 1 is a first perspective view of a two-cylinder mixer in accordance with an embodiment of the present invention;

FIG. 2 is a first perspective view of a mixer chamber according to an embodiment of the invention;

FIG. 3 is a second perspective view of a mixer chamber according to an embodiment of the invention;

FIG. 4 is a third perspective view of a mixer cavity according to an embodiment of the invention;

FIG. 5 is a fourth perspective view of a mixer cavity according to an embodiment of the invention;

FIG. 6 is a first perspective view of a dual cylinder mixer sump (with intake nozzle) according to an embodiment of the present invention;

FIG. 7 is a first perspective view of a dual cylinder mixer sump in accordance with an embodiment of the present invention;

FIG. 8 is a second perspective view of a dual cylinder mixer sump in accordance with an embodiment of the present invention;

FIG. 9 is a first perspective view of a dual cylinder mixer sump inlet nozzle in accordance with an embodiment of the present invention;

in the figure: the oil pan 1, the left chamber 101, the right chamber 102, the oil filling port 103, the first groove 104, the second groove 105, the through hole 106, the air inlet nozzle 2, the oil distribution port 201, the mixer cavity 3, the mixing chamber 301, the air inlet hole 302, the first air inlet hole 3021, the second air inlet hole 3022, and the throat 303.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments.

In this embodiment, a two-cylinder mixer includes a mixer cavity 3, and a left mixing chamber and a right mixing chamber are disposed in the mixer cavity 3; an oil pan 1 is further arranged below the mixer cavity 3, a partition plate is arranged in the oil pan 1, the oil pan 1 is divided into a left cavity 101 and a right cavity 102 through the partition plate, an oil filling port 103 is further arranged on the side face of the oil pan 1, and the oil filling port 103 is communicated with the left cavity 101 and the right cavity 102; the mixer cavity 3 is further provided with two or more air inlet holes 302, the left mixing cavity is communicated with the left chamber 101 through the air inlet holes 302, the right mixing cavity is communicated with the right chamber 102 through the air inlet holes 302, and the diameters of the air inlet holes 302 are smaller than the depths of the air inlet holes 302.

In the embodiment, the oil pan 1 is arranged below the mixer cavity 3, so that the air supply distance of the mixer is shortened, the mixer is ensured to have sufficient air input under different working conditions, the problem of uneven air supply of the existing mixer is solved, and the power of an engine is ensured; secondly, after the baffle plate is arranged in the oil pan 1, the mixing chambers in the mixer cavity 3 respectively correspond to different chambers, so that different air inflow of different mixing chambers can be controlled, and the oil pan is more suitable for being used under different working conditions of an engine; and the air inlet speed is improved by arranging a plurality of air inlet holes 302; meanwhile, each air inlet hole 302 is set to be smaller than the depth of the air inlet hole 302, so that a plurality of fine hole structures are formed, the air inflow is convenient to control, and the air inlet effect is improved; in the implementation, an engine with the rated output power of 3kw is selected for testing, the power of the engine is improved by about 13% under the same condition, and the exhaust pollutants are reduced by about 20%.

Further, the device also comprises an air inlet nozzle 2, wherein the air inlet nozzle 2 is matched with the oil filling port 103, an oil distribution port 201 is arranged at the tail end of the air inlet nozzle 2, and the oil distribution port 201 is communicated with the left cavity 101 and the right cavity 102; in another embodiment of this application, through installation suction nozzle 2, be convenient for oil pan 1 and outside oil pipe's being connected, wherein suction nozzle 2 is the tubular structure, one end gomphosis is in oil pan 1, the integrative branch hydraulic fluid port 201 that is provided with of embedding end, as shown in the attached drawing, divide hydraulic fluid port 201 to set up the lateral wall at suction nozzle 2, divide hydraulic fluid port 201 and left cavity 101 and right cavity 102 to link up, can set up the hydraulic fluid port 201 of dividing of different cross-sections in the specific application, the hydraulic fluid port 201 that divides that the hydraulic fluid port 201 that communicates left cavity 101 to connect is different with the hydraulic fluid port 201 that communicates right cavity 102, lead to the air input of left cavity 101 and right cavity 102 inconsistent, with the air feed that is applicable to different operating modes, improve the best utilization ratio of combustible gas or.

Further, the oil pan 1 is provided with a first groove 104 around the left chamber 101 and a second groove 105 around the right chamber 102 in the present application; in order to improve the sealing performance of the oil pan 1 and the mixer cavity 3, in another embodiment of the present application, grooves are provided on the opening side of the oil pan 1, as shown in the figure, specifically, a first groove 104 is provided around the left chamber 101, and a second groove 105 is provided around the right chamber 102; in the installation of the oil pan 1 and the mixer cavity 3, the combustible gas of the left chamber 101 or the right chamber 102 is prevented from leaking along the joint surface of the oil pan 1 and the mixer cavity 3 by placing a sealing ring in the groove.

Further, the side wall of the oil bottom shell 1 is provided with a through hole 106, and the through hole 106 is communicated with the oil filling port 103; in order to facilitate the inspection of the oil pan 1, in the present embodiment, the side wall of the oil pan 1 is integrally provided with a through hole 106, wherein the axis of the through hole 106 is perpendicular to the axis of the oil filling port 103.

Further, in the present application, a throat 303 is provided in the mixing chamber 301, and the throat 303 is provided with an inlet hole 302; wherein the throat 303 is formed by forming a throat in the mixing chamber 301 in the form of a ring having a cross-sectional area smaller than the cross-sectional area of the mixing chamber 301 elsewhere; the volume of the mixing chamber 301 is reduced, the negative pressure at the throat part 303 is the maximum, and the air inlet speed of air at the throat part 303 is improved; therefore, in the present application, the air inlet holes 302 are disposed at the throat portion 303, which further improves the mixing efficiency.

Further, in the present application, the intake holes 302 include a first intake hole 3021 and a second intake hole 3022, wherein the axis of the first intake hole 3021 is perpendicular to the axis of the mixing chamber 301 for air intake of the engine under normal operating conditions, the first intake hole 3021 can be arranged in a plurality according to the requirement of air-fuel mixture, and the axis of the second intake hole 3022 is arranged at an inclined angle to the axis of the mixing chamber 301, so that the engine can run under a low load or no load condition; in order to improve fuel efficiency of the engine, among others, the second intake port 3022 may be located at a front end of the first intake port 3021, i.e., the second intake port 3022 is located near an output end of the mixing chamber.

Further, in this application, a choke valve is arranged in the mixing chamber 301, the outlet of the first air inlet hole 3021 and the outlet of the second air inlet hole 3022 are respectively located on two sides of the choke valve, when the engine is cold-started, combustible gas can enter the front end of the choke valve through the second air inlet hole 3022 to provide fuel for the engine combustion chamber, and further the engine is cold-started.

Further, be provided with two or more than two mixing chamber 301 in cavity 3 in this application, applicable in different grade type engine to the inlet port 302 quantity of each mixing chamber 301 is inconsistent in this application, lets the operation of engine steady more, reliable, has avoided the phenomenon of robbing fuel each other.

Although particular embodiments of the invention have been described and illustrated in detail, it should be understood that various equivalent changes and modifications could be made to the above-described embodiments in accordance with the spirit of the invention, and the resulting functional effects would still fall within the scope of the invention, without departing from the spirit of the description and the accompanying drawings.