CN212296635U - High-efficiency multi-cylinder electronic throttle valve assembly - Google Patents
High-efficiency multi-cylinder electronic throttle valve assembly Download PDFInfo
- Publication number
- CN212296635U CN212296635U CN202020806209.8U CN202020806209U CN212296635U CN 212296635 U CN212296635 U CN 212296635U CN 202020806209 U CN202020806209 U CN 202020806209U CN 212296635 U CN212296635 U CN 212296635U
- Authority
- CN
- China
- Prior art keywords
- oil
- rotating shaft
- throttle valve
- pivot
- annular
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Abstract
The utility model discloses a high-efficient multi-cylinder electronic throttle assembly, including the throttle casing, should have a plurality of syntropy throats that run through including on the throttle casing, all be provided with the valve block in the throat, be provided with an independent pivot of at least and an at least linkage pivot on the throttle casing, each independent pivot can drive a valve block that corresponds respectively and rotate, and each linkage pivot can drive the synchronous rotation of two at least valve blocks that correspond respectively, and each independent pivot and linkage pivot can independently rotate under the drive that corresponds pivot actuating mechanism respectively. By adopting the technical scheme, the air inlet quantity of the engine can be more accurately controlled by ensuring high adjusting precision in the aspect of controlling the opening of the throttle valve, the combustion efficiency is improved, the number of the rotating shaft driving mechanisms is reduced to a certain extent, the whole size is relatively smaller, the occupation of the installation space is reduced, meanwhile, the number of parts is less, and the assembly difficulty and the production cost are reduced.
Description
Technical Field
The utility model relates to a throttle technical field, concretely relates to high-efficient multi-cylinder electronic throttle assembly.
Background
The throttle valve is a controllable valve for controlling air to enter the engine, wherein compared with the most traditional pure mechanical throttle valve, the electronic throttle valve can more accurately control the opening of the throttle valve, realize more reasonable air-fuel ratio, enable the combustion of mixed gas to be more sufficient, reduce emission and improve the dynamic property, the economical efficiency and the comfort of the engine.
Although the existing multi-cylinder electronic throttle valve is provided with a plurality of throats, each throat is provided with an independent valve plate. However, the rotation of each valve plate is synchronously controlled by a set of rotating shaft driving mechanism, so that each valve plate actually rotates synchronously, the control precision of the opening degree of the throttle valve is limited, and higher application requirements cannot be met. However, if the rotation of each valve plate is independently controlled by one set of rotating shaft driving mechanism, not only the precision overflow is possible, but also the rotating shaft driving mechanisms with excessive number not only cause the overlarge integral size and the excessive occupied installation space, but also cause more parts, large assembly difficulty and high production cost.
It is urgent to solve the above problems.
SUMMERY OF THE UTILITY MODEL
For solving the technical problem above, the utility model provides a high-efficient multi-cylinder electronic throttle assembly.
The technical scheme is as follows:
the utility model provides a high-efficient multi-cylinder electronic throttle assembly, includes the throttle casing, should have a plurality of syntropy throats that run through including on the throttle casing, all be provided with the valve block in the throat, its main points lie in: the throttle valve comprises a throttle valve shell and is characterized in that at least one independent rotating shaft and at least one linkage rotating shaft are arranged on the throttle valve shell, each independent rotating shaft can drive one corresponding valve block to rotate, each linkage rotating shaft can drive at least two corresponding valve blocks to rotate synchronously, and each independent rotating shaft and each linkage rotating shaft can rotate independently under the driving of a corresponding rotating shaft driving mechanism.
By adopting the structure, the rotation of part of the valve plates is controlled by the independent rotating shaft (the functions of multi-point multi-control and multi-cylinder independent control respectively are realized), the rotation of part of the valve plates is controlled by the linkage rotating shaft, the high adjusting precision on the control of the opening degree of the throttle valve is ensured, the air inflow of an engine can be controlled more accurately, the combustion efficiency is improved, the number of the rotating shaft driving mechanisms is reduced to a certain extent, the whole size is relatively smaller, the occupation of the installation space is reduced, meanwhile, the number of parts is less, and the assembly difficulty and the production cost are reduced.
Preferably, the method comprises the following steps: the rotary shaft driving mechanism comprises a motor, a first-stage driving gear fixedly sleeved on a motor shaft of the motor, a middle duplicate gear fixedly sleeved on a corresponding independent rotary shaft or a linkage rotary shaft and a speed reduction transmission gear between the first-stage driving gear and the rotary shaft driving gear, the middle duplicate gear comprises a first-stage driven gear meshed with the first-stage driving gear and a second-stage driving gear meshed with a rotary shaft driving gear core, and a return torsion spring is arranged between the first-stage driving gear and the throttle valve shell. By adopting the structure, the number of the gears is reduced through the arrangement of the middle duplicate gear, the cost is reduced, the structure is more compact, the overall size is further reduced, and the matching is more stable and reliable.
Preferably, the method comprises the following steps: the return torsion springs are respectively sleeved on the corresponding independent rotating shafts or the corresponding linkage rotating shafts, one of the lap joint arms is lapped on the corresponding rotating shaft driving gear, and the other lap joint arm is lapped on the throttle valve shell. By adopting the structure, the structure is simple, reliable and easy to assemble.
Preferably, the method comprises the following steps: and two ends of each linkage rotating shaft are rotatably arranged on the throttle valve shell through a bearing respectively. By adopting the structure, the reliability of assembly can be ensured only by matching two bearings for each rotating shaft, and the cost is greatly reduced on the premise of ensuring the reliability compared with the installation mode that four bearings are matched for each rotating shaft in the prior art.
Preferably, the method comprises the following steps: the air inlet end of the throat is embedded with a copper sleeve, a plurality of oil inlet micropores are formed in the copper sleeve, an annular oil supply channel is formed between the outer wall of each copper sleeve and the hole wall of the corresponding throat, a plurality of oil injector mounting holes are formed in the throttle shell, and oil injectors mounted in the oil injector mounting holes can supply oil to the annular oil supply channels on the two corresponding copper sleeves respectively. By adopting the structure, each oil sprayer can respectively supply oil to the two corresponding annular oil supply channels, so that finally gasoline enters the throats through the oil inlet micropores, one oil sprayer can supply oil to the two throats, the performance of the oil sprayer can be fully utilized, the using quantity of the oil sprayer is reduced, the production cost is reduced, the integral structure is more compact, the occupied mounting space is reduced, and the applicability is better.
Preferably, the method comprises the following steps: and the annular oil supply channels of every two copper sleeves are respectively communicated through corresponding oil conveying channels on the throttle valve shell, and each oil injector mounting hole is respectively communicated with one annular oil supply channel corresponding to the copper sleeve. By adopting the structure, the oil injector arranged in the oil injector mounting hole can supply oil to one annular oil supply channel firstly and then supply oil to the other annular oil supply channel through the oil delivery channel, so that oil can be supplied to two annular oil supply channels simultaneously.
Preferably, the method comprises the following steps: and the annular oil supply channels of every two copper sleeves are respectively communicated through corresponding oil delivery channels on the throttle shell, and the oil injector mounting holes are respectively communicated with the corresponding oil delivery channels. By adopting the structure, the oil injector arranged in the oil injector mounting hole can supply oil to the oil delivery channel, and then the oil delivery channel can supply oil to the two annular oil supply channels simultaneously, so that the oil supply is more balanced, the proportion of air and fuel oil can be controlled more accurately, and the combustion efficiency is improved.
Preferably, the method comprises the following steps: the copper bush is provided with at least one circle of annular groove at the position close to the gas outlet end, the hole wall of the throat and the corresponding annular groove are encircled to form the annular oil supply channel, each oil inlet micropore is respectively arranged at the bottom of the corresponding annular groove, adjacent annular grooves are separated by an annular convex rib, and the outer diameter of the annular convex rib is smaller than that of the corresponding copper bush. By adopting the structure, the fuel is limited to flow in the annular groove, so that oil leakage can be avoided, and the flow is smoother; and the outer diameter of the annular convex rib is smaller than that of the corresponding copper sleeve, so that fuel can flow between the adjacent annular grooves, and mutual supplement is realized.
Preferably, the method comprises the following steps: each oil inlet micropore is annular evenly distributed in the annular groove that corresponds. By adopting the structure, the fuel can more dispersedly and uniformly flow into the throat.
Compared with the prior art, the beneficial effects of the utility model are that:
the high-efficiency multi-cylinder electronic throttle valve assembly adopting the technical scheme has the advantages of novel structure, ingenious design and easy realization, the rotation of part of the valve plates is controlled by the independent rotating shaft (the functions of multi-point multi-control and independent regulation and control of multiple cylinders are realized), the rotation of part of the valve plates is controlled by the linkage rotating shaft, the high regulation precision in the control of the throttle valve opening degree is ensured, the air inflow of an engine can be controlled more accurately, the combustion efficiency is improved, the number of the rotating shaft driving mechanisms is reduced to a certain degree, the whole size is relatively smaller, the occupation of the installation space is reduced, meanwhile, fewer parts are arranged, and the assembly difficulty and the production cost are reduced.
Drawings
Fig. 1 is a schematic perspective view of one of the viewing angles of the present invention;
fig. 2 is a schematic perspective view of another view angle of the present invention;
fig. 3 is a schematic plan view of the present invention;
FIG. 4 is a cross-sectional view taken at A-A of FIG. 3;
FIG. 5 is a cross-sectional view taken at B-B of FIG. 3;
FIG. 6 is a cross-sectional view taken at C-C of FIG. 3;
fig. 7 is a schematic structural view of the copper bush.
Detailed Description
The present invention will be further described with reference to the following examples and accompanying drawings.
As shown in fig. 1-4, a high-efficiency multi-cylinder electronic throttle valve assembly mainly includes a throttle valve housing 1, the throttle valve housing 1 has a plurality of throats 1a penetrating in the same direction, valve plates 11 are disposed in the throats 1a, the throttle valve housing 1 is provided with at least one independent rotating shaft 12 and at least one linkage rotating shaft 4, each independent rotating shaft 12 can drive one corresponding valve plate 11 to rotate, each linkage rotating shaft 4 can drive at least two corresponding valve plates 11 to rotate synchronously, and each independent rotating shaft 12 and the linkage rotating shaft 4 can rotate independently under the driving of a corresponding shaft driving mechanism.
When the linkage rotating shaft 4 rotates, at least two corresponding valve plates 11 can be driven to synchronously rotate; when the independent rotating shaft 12 rotates, only one corresponding valve plate 11 can be driven to rotate. Therefore, the rotation of part of the valve plates 11 is controlled by the independent rotating shaft 12, and the rotation of part of the valve plates 11 is controlled by the linkage rotating shaft 4, so that the high adjusting precision in the control of the opening degree of the throttle valve is ensured, the air input of an engine can be more accurately controlled, the combustion efficiency is improved, the number of the rotating shaft driving mechanisms is reduced to a certain extent, the whole size is relatively smaller, the occupation of the installation space is reduced, meanwhile, the number of parts is less, and the assembly difficulty and the production cost are reduced.
Referring to fig. 1 and 2, the rotating shaft driving mechanism includes a motor 5, a first-stage driving gear 6 fixedly sleeved on a motor shaft of the motor 5, a rotating shaft driving gear 8 fixedly sleeved on a corresponding independent rotating shaft 12 or a linkage rotating shaft 4, and a middle duplicate gear 7 for speed reduction transmission between the first-stage driving gear 6 and the rotating shaft driving gear 8, wherein the middle duplicate gear 7 includes a first-stage driven gear 7a engaged with the first-stage driving gear 6 and a second-stage driving gear 7b engaged with a core of the rotating shaft driving gear 8.
The motor 5 is started, a motor shaft of the motor 5 drives the first-stage driving gear 6 to rotate, the first-stage driving gear 6 drives the middle duplicate gear 7 to rotate, the middle duplicate gear 7 drives the rotating shaft driving gear 8 to rotate, and the rotating shaft driving gear 8 drives the corresponding independent rotating shaft 12 or the corresponding linkage rotating shaft 4 to rotate.
In the matching relationship between the first-stage driving gear 6 and the first-stage driven gear 7a, the first-stage driving gear 6 serves as a 'pinion', the first-stage driven gear 7a serves as a 'bull gear', the second-stage driving gear 7b serves as a 'pinion' and the rotating shaft driving gear 8 serves as a 'bull gear', and more accurate adjustment of the rotation angle of the independent rotating shaft 12 or the linkage rotating shaft 4 can be achieved through two-stage speed reduction.
Referring to fig. 1, 2 and 4, a return torsion spring 9 is disposed between the primary driving gear 6 and the throttle housing 1. Specifically, the return torsion springs 9 are respectively sleeved on the corresponding independent rotating shaft 12 or the corresponding linkage rotating shaft 4, one of the lap joint arms is lapped on the corresponding rotating shaft driving gear 8, and the other lap joint arm is lapped on the throttle valve shell 1.
In this embodiment, permanent magnets are disposed at one end of the independent rotating shaft 12 or the linkage rotating shaft 4, and a hall sensor adapted to the permanent magnets is disposed on the throttle casing 1. The rotating angle of the permanent magnet is detected through the Hall sensor, the rotating angle of the rotating shaft driving gear 8 can be determined, and therefore the rotating angle of the valve plate 11 can be accurately known, and the opening degree of the valve plate 11 can be accurately controlled.
Further, referring to fig. 4, both ends of each of the interlocking shafts 4 are rotatably mounted on the throttle housing 1 through a bearing 10. Every linkage pivot 4 only need join in marriage two bearings 13, just can guarantee the reliability of assembly, joins in marriage the mounting means of four or more bearings for every pivot now, under the prerequisite of guaranteeing the reliability, has reduced the cost by a wide margin.
Referring to fig. 1, 2 and 5-7, copper sleeves 2 are embedded at air inlet ends of the throats 1a, a plurality of oil inlet micropores 2a are formed in the copper sleeves 2, annular oil supply channels 3 are formed between outer walls of the copper sleeves 2 and hole walls of the corresponding throats 1a, a plurality of oil injector mounting holes 1b are formed in the throttle casing 1, and oil injectors mounted in the oil injector mounting holes 1b can supply oil to the annular oil supply channels 3 on the two corresponding copper sleeves 2.
Specifically, there are two ways:
the first method is as follows: referring to fig. 5-7, the annular oil supply channels 3 of every two copper sleeves 2 are respectively communicated through the corresponding oil delivery channel 1c on the throttle casing 1, and each oil injector mounting hole 1b is respectively communicated with one annular oil supply channel 3 of the corresponding copper sleeve 2, so that an oil injector mounted in the oil injector mounting hole 1b can supply oil to one annular oil supply channel 3 firstly and then supply oil to the other annular oil supply channel 3 through the oil delivery channel 1c, and the oil supply to the two annular oil supply channels 3 is realized simultaneously. In this way, the injector mounting holes 1b are all opened on the same side wall of the throttle housing 1, that is: the fuel injectors are all arranged on the same side wall of the throttle valve shell 1, so that the installation structure is more compact, and the space occupation is further reduced.
The second method comprises the following steps: the annular oil supply channels 3 of every two copper sleeves 2 are respectively communicated through corresponding oil delivery channels 1c on the throttle valve shell 1, and the oil injector mounting holes 1b are respectively communicated with the corresponding oil delivery channels 1 c. By adopting the mode, the oil injector arranged in the oil injector mounting hole 1b can supply oil to the oil delivery channel 1c, and then the oil delivery channel 1c simultaneously supplies oil to the two annular oil supply channels 3, so that the oil supply is more balanced, the proportion of air and fuel oil can be more accurately controlled, and the combustion efficiency is improved.
Referring to fig. 1 and 6, each oil delivery channel 1c is close to the air outlet end of the corresponding copper sleeve 2, and can communicate with two corresponding annular oil supply channels 3. Specifically, when the oil delivery passage 1c is machined in the throttle casing 1, a long and thin deep hole is milled from the outer wall of the throttle casing 1, the deep hole can be communicated with the two annular oil supply passages 3, and then the inlet end of the deep hole is blocked by the plug 1c1, so that the oil delivery passage 1c is formed. The processing mode is simple and reliable, and the processing precision can be ensured.
Referring to fig. 5 and 7, the copper bush 2 has a cylindrical structure as a whole, and at least one ring of annular groove 2b is formed at a position of the copper bush 2 near the gas outlet end, and in this embodiment, two rings of annular grooves 2b are formed on each copper bush 2. The hole wall of each throat 1a and two annular grooves 2b of the corresponding copper bush 2 surround to form an annular oil supply channel 3, and it should be noted that adjacent annular grooves 2b are separated by annular convex ribs 2c, and the outer diameter of the annular convex ribs 2c is smaller than the outer diameter of the corresponding copper bush 2 (see the enlarged part in fig. 5), so that fuel oil can flow between the adjacent annular grooves 2b to realize mutual supplement. The outer walls of other parts of the copper sleeve 2 are tightly attached to the hole wall corresponding to the throat 1a, so that oil leakage can be effectively avoided.
Correspondingly, each oil inlet micropore 2a is respectively arranged at the bottom of the corresponding annular groove 2b, and in order to enable fuel to more dispersedly and uniformly flow into the throat 1a, each oil inlet micropore 2a is annularly and uniformly distributed in the corresponding annular groove 2 b. And, the oil-feed micropores 2a in the adjacent annular grooves 2b are distributed in a staggered manner to further disperse the spatial distribution of each oil-feed micropore 2 a.
Finally, it should be noted that the above description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and the scope of the present invention.
Claims (9)
1. The utility model provides a high-efficient multi-cylinder electronic throttle valve assembly, includes throttle valve casing (1), has a plurality of syntropy throat (1a) that run through on this throttle valve casing (1), all be provided with valve block (11) in throat (1a), its characterized in that: be provided with an independent pivot (12) at least and a linkage pivot (4) at least on throttle valve casing (1), each independent pivot (12) can drive a valve block (11) that correspond respectively and rotate, and each linkage pivot (4) can drive two at least valve blocks (11) that correspond respectively and rotate in step, and each independent pivot (12) and linkage pivot (4) can independently rotate under the drive that corresponds pivot actuating mechanism respectively.
2. The high efficiency multi-cylinder electronic throttle assembly of claim 1, wherein: the rotating shaft driving mechanism comprises a motor (5), a first-stage driving gear (6) fixedly sleeved on a motor shaft of the motor (5), a middle duplicate gear (7) fixedly sleeved on a rotating shaft driving gear (8) corresponding to an independent rotating shaft (12) or a linkage rotating shaft (4) and in reduction transmission between the first-stage driving gear (6) and the rotating shaft driving gear (8), wherein the middle duplicate gear (7) comprises a first-stage driven tooth (7a) meshed with the first-stage driving gear (6) and a second-stage driving tooth (7b) meshed with the rotating shaft driving gear (8), and a return torsion spring (9) is arranged between the first-stage driving gear (6) and the throttle valve shell (1).
3. The high efficiency multi-cylinder electronic throttle assembly of claim 2, wherein: the return torsion springs (9) are respectively sleeved on the corresponding independent rotating shafts (12) or the corresponding linkage rotating shafts (4), one of the lap joint arms is lapped on the corresponding rotating shaft driving gear (8), and the other lap joint arm is lapped on the throttle valve shell (1).
4. The high efficiency multi-cylinder electronic throttle assembly of claim 1, wherein: and two ends of each linkage rotating shaft (4) are rotatably arranged on the throttle valve shell (1) through a bearing (10).
5. The high efficiency multi-cylinder electronic throttle assembly of claim 1, wherein: the air inlet end of the throat (1a) is embedded with a copper sleeve (2), a plurality of oil inlet micropores (2a) are formed in the copper sleeve (2), an annular oil supply channel (3) is formed between the outer wall of each copper sleeve (2) and the hole wall of the corresponding throat (1a), a plurality of oil injector mounting holes (1b) are formed in the throttle valve shell (1), and oil injectors installed in the oil injector mounting holes (1b) can supply oil to the annular oil supply channels (3) on the two corresponding copper sleeves (2) respectively.
6. The high efficiency multi-cylinder electronic throttle assembly of claim 5, wherein: the annular oil supply channels (3) of every two copper sleeves (2) are communicated through corresponding oil conveying channels (1c) on the throttle valve shell (1), and each oil sprayer mounting hole (1b) is communicated with one annular oil supply channel (3) corresponding to one copper sleeve (2).
7. The high efficiency multi-cylinder electronic throttle assembly of claim 5, wherein: the annular oil supply channels (3) of every two copper sleeves (2) are respectively communicated through corresponding oil delivery channels (1c) on the throttle valve shell (1), and the oil injector mounting holes (1b) are respectively communicated with the corresponding oil delivery channels (1 c).
8. The high efficiency multi-cylinder electronic throttle assembly of claim 5, wherein: the position that copper sheathing (2) are close to the end of giving vent to anger has at least round annular groove (2b), the pore wall of larynx (1a) surrounds with annular groove (2b) that correspond and forms annular fuel feeding passageway (3), and each oil feed micropore (2a) is seted up respectively at the tank bottom that corresponds annular groove (2b), separates through annular protruding muscle (2c) between adjacent annular groove (2b), the external diameter of annular protruding muscle (2c) is less than the external diameter that corresponds copper sheathing (2).
9. The high efficiency multi-cylinder electronic throttle assembly of claim 8, wherein: each oil inlet micropore (2a) is annularly and uniformly distributed in the corresponding annular groove (2 b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020806209.8U CN212296635U (en) | 2020-05-14 | 2020-05-14 | High-efficiency multi-cylinder electronic throttle valve assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020806209.8U CN212296635U (en) | 2020-05-14 | 2020-05-14 | High-efficiency multi-cylinder electronic throttle valve assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212296635U true CN212296635U (en) | 2021-01-05 |
Family
ID=73968635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020806209.8U Active CN212296635U (en) | 2020-05-14 | 2020-05-14 | High-efficiency multi-cylinder electronic throttle valve assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212296635U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111425306A (en) * | 2020-05-14 | 2020-07-17 | 重庆渝辉机械有限公司 | Combined multi-cylinder electronic throttle valve assembly |
-
2020
- 2020-05-14 CN CN202020806209.8U patent/CN212296635U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111425306A (en) * | 2020-05-14 | 2020-07-17 | 重庆渝辉机械有限公司 | Combined multi-cylinder electronic throttle valve assembly |
| CN111425306B (en) * | 2020-05-14 | 2022-07-26 | 重庆渝辉机械有限公司 | Combined multi-cylinder electronic throttle valve assembly |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101636558B (en) | Split cycle variable capacity rotary spark ignition engine | |
| US4622931A (en) | Inlet manifold | |
| EP1908943B1 (en) | Variable geometry intake manifold for an internal combustion engine | |
| CN102124196A (en) | Planetary rotary engine | |
| CN212296635U (en) | High-efficiency multi-cylinder electronic throttle valve assembly | |
| CN102102557A (en) | Control valve apparatus | |
| CN101063423A (en) | Air-intake device for internal combustion engine | |
| CN111425306B (en) | Combined multi-cylinder electronic throttle valve assembly | |
| CN106837460A (en) | A kind of internal-combustion engine continuous variable valve timing apparatus | |
| CN1743656A (en) | Air admission and fuel supplying system for gas engine | |
| US7021264B2 (en) | Variable valve | |
| CN111425307B (en) | Linkage type multi-cylinder electronic throttle valve assembly | |
| DE102007063043A1 (en) | Cylinder head for internal combustion engine, has passage extending between internal chamber and lower surface of main body, and another passage forming connection between inner chamber and exterior of main body for inserting rotary valve | |
| CN212154956U (en) | Single-motor driven multi-cylinder electronic throttle valve assembly | |
| CN206845348U (en) | Egr valve | |
| CN203742852U (en) | Multi-cylinder engine variable intake manifold control mechanism | |
| CN109268181A (en) | A kind of Electrocontrolled high-pressure common rail oil feed pump of four cylinder diameter to arrangement | |
| CN108915905B (en) | Integrated electronic throttle valve | |
| CN103233808A (en) | Engine | |
| CN207485564U (en) | A kind of EGR valve | |
| CN201963408U (en) | Energy-saving throttle | |
| CN218761581U (en) | Double-air-passage valve core and switching valve with built-in valve core | |
| CN201339526Y (en) | Inline pump | |
| CN217501806U (en) | Automobile pressure converter | |
| CN2890378Y (en) | Air inlet and fuel feeding device for gas engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |