CN108644253A - Clutch control valve and clutch control oil and vehicle - Google Patents
Clutch control valve and clutch control oil and vehicle Download PDFInfo
- Publication number
- CN108644253A CN108644253A CN201810474775.0A CN201810474775A CN108644253A CN 108644253 A CN108644253 A CN 108644253A CN 201810474775 A CN201810474775 A CN 201810474775A CN 108644253 A CN108644253 A CN 108644253A
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- Prior art keywords
- valve
- oil
- oil duct
- clutch control
- passage
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- 230000002093 peripheral effect Effects 0.000 claims description 17
- 230000035939 shock Effects 0.000 abstract 1
- 230000009471 action Effects 0.000 description 7
- 238000000926 separation method Methods 0.000 description 4
- 238000013016 damping Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D48/00—External control of clutches
- F16D48/02—Control by fluid pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D25/00—Fluid-actuated clutches
- F16D25/12—Details not specific to one of the before-mentioned types
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
The invention discloses a kind of clutch control valve and clutch control oil and vehicle, clutch control valve includes：There is the first oil duct, valve chamber, the second oil duct being sequentially connected, the cross-sectional area of valve chamber to be more than the cross-sectional area of the first oil duct and the cross-sectional area of the second oil duct for valve pocket, valve pocket；There is the bypass oil duct of the main oil gallery of perforation and the periphery wall set on spool, spool and valve chamber clearance fit, main oil gallery to be connected to the first oil duct, the second oil duct for spool, spool；Wherein, when the junction between the second oil duct, valve chamber and spool contact, one end of bypass oil duct towards the second oil duct is connected to the second oil duct；When junction and spool between the first oil duct, valve chamber contact, bypass oil duct is cut off towards one end of the first oil duct and the first oil duct.The clutch control valve of the present invention, can solve the problems, such as shift shock, be effectively prevented from clutch pedal shake, promote user experience.
Description
Technical Field
The invention belongs to the technical field of vehicle manufacturing, and particularly relates to a clutch control valve, a clutch control oil way with the clutch control valve and a vehicle.
Background
In a clutch control system, a clutch master cylinder outputs high-pressure oil, the high-pressure oil acts on a clutch slave cylinder through a clutch pipeline, and the clutch slave cylinder pushes a clutch to realize the combination and the separation of the clutch.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a clutch control valve which can solve the problem of gear shifting impact and avoid the shaking of a clutch pedal.
A clutch control valve according to an embodiment of the present invention includes: the valve comprises a valve housing, a valve body and a valve seat, wherein the valve housing is provided with a first oil duct, a valve cavity and a second oil duct which are sequentially connected, and the cross sectional area of the valve cavity is larger than that of the first oil duct and that of the second oil duct; the valve core is provided with a through main oil channel and a bypass oil channel arranged on the outer peripheral wall of the valve core, the valve core is in clearance fit with the valve cavity, and the main oil channel is communicated with the first oil channel and the second oil channel; when the joint between the second oil channel and the valve cavity is contacted with the valve core, one end of the bypass oil channel facing the second oil channel is communicated with the second oil channel; when the joint between the first oil duct and the valve cavity is in contact with the valve core, one end of the bypass oil duct facing the first oil duct is cut off from the first oil duct.
According to the clutch control valve provided by the embodiment of the invention, the valve core can be driven to move in the valve cavity by using oil pressure, the bypass oil duct is cut off when the joint between the first oil duct and the valve cavity is contacted with the valve core, and the bypass oil duct is communicated when the joint between the second oil duct and the valve cavity is contacted with the valve core, so that the problem of gear shifting impact can be solved, the clutch pedal is effectively prevented from shaking, the gear shifting operation and clutch operation quality is improved, and the user experience is improved.
According to the clutch control valve of one embodiment of the invention, the second oil passage communicates with the valve chamber through a passage that gradually narrows toward the second oil passage, and one end of the valve element toward the second oil passage is adapted to contact with a peripheral wall of the passage.
According to the clutch control valve of one embodiment of the present invention, the peripheral wall of the passage is formed in a conical shape.
According to the clutch control valve of one embodiment of the present invention, the peripheral wall of the passage has a polygonal pyramid shape.
According to the clutch control valve of one embodiment of the invention, a step surface is arranged between the first oil passage and the valve cavity, and one end of the valve core facing the first oil passage is suitable for being in contact with the step surface.
According to the clutch control valve of one embodiment of the present invention, the step surface is perpendicular to the axis of the valve housing.
According to the clutch control valve of one embodiment of the present invention, the bypass oil passage has a U-shaped cross section; or the bypass oil passages are arranged at intervals along the circumferential direction of the valve core.
According to the clutch control valve provided by the embodiment of the invention, the valve cavity, the first oil channel and the second oil channel are all cylindrical, the valve core is in a cylindrical tube shape, the outer diameter of the valve core is smaller than the diameter of the valve cavity and larger than the diameters of the first oil channel and the second oil channel, the diameter of the main oil channel is not larger than the diameters of the first oil channel and the second oil channel, and the outer diameter of the valve core at the bypass oil channel is larger than the diameter of the first oil channel.
The invention further provides a clutch control oil way.
According to the clutch control oil circuit of the embodiment of the invention, the clutch control oil circuit comprises: the clutch master cylinder is communicated with the clutch slave cylinder through a clutch pipeline; the clutch control valve is arranged in any one of the above embodiments, and is installed in the clutch pipeline.
The invention further provides a vehicle.
According to the vehicle of the embodiment of the invention, the clutch strong control oil path of the embodiment is provided.
Compared with the prior art, the advantages of the clutch control oil path, the vehicle and the clutch control valve are the same, and are not described again.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic illustration of a clutch control valve according to an embodiment of the present invention in a natural state;
FIG. 2 is a schematic diagram of a clutch control valve according to an embodiment of the present invention in a clutch depressed configuration;
FIG. 3 is a schematic diagram of a clutch control valve according to an embodiment of the present invention in a clutch released configuration;
fig. 4 is a schematic structural view of a valve spool of a clutch control valve according to an embodiment of the present invention.
Reference numerals:
the clutch control valve 100 is controlled by a clutch,
the valve housing 10, the first oil passage 11, the second oil passage 12, the valve chamber 13, the passage 14, the step surface 15,
a valve spool 20, a main oil gallery 21, and a bypass oil gallery 22.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
A clutch control valve 100 according to an embodiment of the present invention will be described below with reference to fig. 1 to 4.
As shown in fig. 1 to 4, a clutch control valve 100 according to one embodiment of the present invention includes: valve sleeve 10, valve core 20.
The valve pocket 10 is provided with a first oil duct 11, a valve cavity 13 and a second oil duct 12, the first oil duct 11, the valve cavity 13 and the second oil duct 12 are all used for high-pressure oil to circulate, the first oil duct 11, the valve cavity 13 and the second oil duct 12 are sequentially connected to form the valve pocket 10, the cross section area of the valve cavity 13 is larger than the cross section area of the first oil duct 11, the inner diameter of the valve cavity 13 is larger than the inner diameter of the first oil duct 11, the cross section area of the valve cavity 13 is larger than the cross section area of the second oil duct 12, and the inner diameter of the valve cavity 13.
As shown in fig. 4, the valve spool 20 has a main oil gallery 21, the main oil gallery 21 penetrates the valve spool 20, the valve spool 20 has a bypass oil gallery 22, the bypass oil gallery 22 is provided in the outer peripheral wall of the valve spool 20, and both the main oil gallery 21 and the bypass oil gallery 22 can be used for the flow of high-pressure oil.
As shown in fig. 1-3, the valve core 20 is in clearance fit with the valve cavity 13, so that the valve core 20 can move axially in the valve cavity 13, for example, the valve core 20 can move to one end of the valve cavity 13 close to the first oil passage 11 under the action of oil pressure, or move to one end of the valve cavity 13 close to the second oil passage 12 under the action of oil pressure, and the moving process is simple and the operation is convenient.
The main oil gallery 21 is communicated with the first oil gallery 11 and the second oil gallery 12, so that the valve core 20 can be arranged at any position in the valve cavity 13, and the first oil gallery 11 and the second oil gallery 12 can form an oil passage communicated with the main oil gallery 21.
It should be noted that, as shown in fig. 1 to fig. 3, the valve cavity 13, the first oil passage 11, and the second oil passage 12 are all cylindrical, the valve core 20 is cylindrical, the outer diameter of the valve core 20 is smaller than the diameter of the valve cavity 13, so that the valve core 20 can move in the axial direction in the valve cavity 13, and the outer diameter of the valve core 20 is larger than the diameters of the first oil passage 11 and the second oil passage 12, so that when the valve core 20 moves to be connected with the first oil passage 11 or the second oil passage 12 under the action of oil pressure, the valve core 20 is limited to move in the axial direction, and the valve core 20 is stopped at the connection position of the valve cavity 13 and the first oil passage 11.
Specifically, the diameter of the main oil gallery 21 is not greater than that of the first oil gallery 11, and the diameter of the main oil gallery 21 is not greater than that of the second oil gallery 12, so that when the valve spool 20 moves in the valve cavity 13, the main oil gallery 21 is always communicated with the first oil gallery 11 and the second oil gallery 12, and the outer diameter of the valve spool 20 at the bypass oil gallery 22 is greater than that of the first oil gallery 11, so that when the valve spool 20 moves in the valve cavity 13 to be connected with the first oil gallery 11, the bypass oil gallery 22 is blocked by the end of the first oil gallery 11, so that one end of the bypass oil gallery 22 facing the first oil gallery 11 is not communicated with the first oil gallery 11.
As shown in fig. 2, when the clutch is stepped on, the valve core 20 moves to a side close to the second oil duct 12 under the action of oil pressure, and when the joint between the second oil duct 12 and the valve cavity 13 contacts with the valve core 20, one end of the bypass oil duct 22 facing the second oil duct 12 is communicated with the second oil duct 12, and high-pressure oil flows through the clutch control valve 100 through the main oil duct 21 and the bypass oil duct 22, so that the clutch is quickly separated.
As shown in fig. 3, when the clutch is released, the direction of the acting force of the oil pressure is opposite to the direction when the clutch is stepped on, the valve element 20 moves to a side close to the first oil duct 11 under the action of the oil pressure, when the joint between the first oil duct 11 and the valve cavity 13 is contacted with the valve element 20, one end of the bypass oil duct 22 facing the first oil duct 11 is cut off from the first oil duct 11, high-pressure oil only flows in the clutch control valve 100 through the main oil duct 21, one end of the bypass oil duct 22 only departing from the first oil duct 11 is communicated with the oil duct, the oil does not enter the first oil duct 11 through the bypass oil duct 22, the flow rate of the high-pressure oil is low, the damping force is increased, and therefore the slow-speed combination of the.
It should be noted that the slow combination of the clutch means that the clutch disc is combined slowly, so that the impact of the driving force generated during gear shifting is avoided, the gear shifting quality is improved, and meanwhile, due to the reduction of the flow and the increase of the damping force, the high-pressure oil impact caused by the rapid return of the clutch pedal is avoided, so that the clutch pedal shaking caused by the high-pressure oil pulse is avoided.
According to the clutch control valve 100 of the embodiment of the invention, the valve core 20 can be driven to move in the valve cavity 13 by using oil pressure, the bypass oil channel 22 is cut off when the joint between the first oil channel 11 and the valve cavity 13 is contacted with the valve core 20, and the bypass oil channel 22 is communicated when the joint between the second oil channel 12 and the valve cavity 13 is contacted with the valve core 20, so that the problem of gear shifting impact can be solved, the clutch pedal is effectively prevented from shaking, the gear shifting operation and clutch operation quality is improved, and the user experience is improved.
According to the clutch control valve 100 of the embodiment of the invention, as shown in fig. 1 to 3, the second oil passage 12 is communicated with the valve chamber 13 through the passage 14, the passage 14 is gradually contracted from one end close to the valve chamber 13 toward the second oil passage 12, and one end of the valve spool 20 toward the second oil passage 12 is adapted to be in contact with the peripheral wall of the passage 14, it can be understood that the cross-sectional area of one end of the passage 14 close to the valve chamber 13 is larger than that of the valve spool 20, and the cross-sectional area of one end of the passage 14 close to the second oil passage 12 is smaller than that of the valve spool 20, so that the valve spool 20 can enter the passage 14 from one end of the passage 14 close to the valve chamber 13 and is gradually in contact with the peripheral wall of the passage 14, and the valve spool.
Therefore, when the clutch is stepped on and separated, the valve core 20 is contacted with the inner wall of the channel 14 under the action of oil pressure, the peripheral wall of the end part of the valve core 20 is abutted against the peripheral wall of the channel 14, and at the moment, the bypass oil channel 22 of the valve core 20 is communicated with the second oil channel 12 and the valve cavity 13, so that high-pressure oil can conveniently circulate from the bypass oil channel 22 and the main oil channel 21, and the clutch can be quickly separated.
In some embodiments, as shown in fig. 1 to 3, the peripheral wall of the channel 14 is a conical surface, and the cross-sectional area of the conical channel 14 is gradually reduced, so that the peripheral wall of the end of the valve core 20 can be conveniently abutted against the peripheral wall of the channel 14, and the communication between the bypass oil passage 22 of the valve core 20 and the second oil passage 12 is realized.
In other embodiments, the peripheral wall of the channel 14 is a polygonal pyramid shape, the cross-sectional area of the channel 14 in the shape of a polygonal pyramid is gradually reduced, the inner wall of the channel 14 can also limit the end of the valve element 20 in the axial direction, and the bypass oil passage 22 is communicated with the second oil passage 12, so that the clutch is easily and quickly separated, and the clutch is reasonable in structure and convenient to use in practice.
As shown in fig. 1 to 3, the clutch control valve 100 according to the embodiment of the invention has a step surface 15 between the first oil passage 11 and the valve cavity 13, that is, the axial projection of the valve cavity 13 is located on the end surface of the first oil passage 11, and one end of the valve core 20 facing the first oil passage 11 is adapted to contact with the step surface 15, for example, when the clutch is released, the valve core 20 moves to one end of the valve cavity 13 close to the first oil passage 11 under the action of oil pressure, and the end surface of the valve core 20 abuts against the step surface 15, so that the bypass oil passage 22 of the valve core 20 is blocked, and at this time, high-pressure oil flows to the first oil passage 11 only through the main oil passage 21, the flow rate is reduced, the damping force is increased, thereby realizing slow engagement of the clutch, effectively avoiding shaking of the clutch pedal during shifting, and.
Further, as shown in fig. 1 to 3, the step surface 15 is perpendicular to the axis of the valve sleeve 10, that is, the step surface 15 is perpendicular to the axes of the first oil duct 11, the valve cavity 13, and the second oil duct 12, and the end surface of the valve core 20 is perpendicular to the axes of the first oil duct 11, the valve cavity 13, and the second oil duct 12, so that when the valve core 20 moves in the valve cavity 13, the step surface 15 is always parallel to the end surface of the valve core 20, and when the end surface of the valve core 20 abuts against the step surface 15, the end surface of the valve core 20 can be well attached to the step surface 15, so that the bypass oil duct 22 is completely blocked, the control accuracy of the clutch control valve 100 is greatly improved, and the practicability is enhanced.
In some embodiments, as shown in fig. 1-3, the bypass oil passage 22 has a U-shaped cross section, which may facilitate the flow of high-pressure oil, although the cross-sectional shape of the bypass oil passage 22 is not limited thereto, and may also be semicircular, rectangular, semi-elliptical, and the like.
The bypass oil passage 22 is provided in plurality, the plurality of bypass oil passages 22 are spaced apart in the circumferential direction of the valve spool 20, for example, as shown in fig. 4, the number of the bypass oil passages 22 is four, and the four bypass oil passages 22 are uniformly spaced apart in the circumferential direction of the valve spool 20, so that the flow rate of the high pressure oil at each position of the valve spool 20 is equalized, which facilitates to improve the control accuracy of the clutch control valve 100.
The invention further provides a clutch control oil way.
The clutch control oil circuit comprises a clutch master cylinder and a clutch slave cylinder, wherein the clutch master cylinder is communicated with the clutch slave cylinder through a clutch pipeline; still have the clutch control valve 100 of any kind of above-mentioned embodiment, and clutch control valve 100 installs in the separation and reunion pipeline, is convenient for control the flow of the high pressure oil in the separation and reunion pipeline to solve the problem of the impact of shifting, avoid the clutch shake, promote the quality of shifting manipulation and separation and reunion manipulation, improve consumer's driving experience.
The invention further provides a vehicle.
According to the vehicle provided by the embodiment of the invention, the clutch control oil way is arranged, the vehicle provided by the embodiment of the invention has good gear shifting operation and clutch operation quality, and the driving performance of the vehicle is improved.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A clutch control valve, comprising:
the valve comprises a valve housing, a valve body and a valve seat, wherein the valve housing is provided with a first oil duct, a valve cavity and a second oil duct which are sequentially connected, and the cross sectional area of the valve cavity is larger than that of the first oil duct and that of the second oil duct;
the valve core is provided with a through main oil channel and a bypass oil channel arranged on the outer peripheral wall of the valve core, the valve core is in clearance fit with the valve cavity, and the main oil channel is communicated with the first oil channel and the second oil channel; wherein,
when the joint between the second oil duct and the valve cavity is contacted with the valve core, one end of the bypass oil duct facing the second oil duct is communicated with the second oil duct;
when the joint between the first oil duct and the valve cavity is in contact with the valve core, one end of the bypass oil duct facing the first oil duct is cut off from the first oil duct.
2. The clutch control valve according to claim 1, wherein the second oil passage communicates with the valve chamber through a passage that is gradually narrowed toward the second oil passage, and one end of the valve spool toward the second oil passage is adapted to be in contact with a peripheral wall of the passage.
3. The clutch control valve of claim 2, wherein a peripheral wall of the passage is conically shaped.
4. The clutch control valve of claim 2, wherein a peripheral wall of the passage is in the shape of a polygonal pyramid.
5. The clutch control valve of claim 1, wherein the first oil passage has a step surface with the valve chamber, and an end of the valve spool facing the first oil passage is adapted to contact the step surface.
6. The clutch control valve of claim 5, wherein the step surface is perpendicular to the axis of the valve sleeve.
7. The clutch control valve as defined in any one of claims 1 to 6, wherein the bypass oil passage has a U-shaped cross section; or the bypass oil passages are arranged at intervals along the circumferential direction of the valve core.
8. The clutch control valve according to any one of claims 1 to 6, wherein the valve chamber, the first oil passage and the second oil passage are all cylindrical, the valve element is in the shape of a cylindrical tube, the outer diameter of the valve element is smaller than the diameter of the valve chamber and larger than the diameters of the first oil passage and the second oil passage, the diameter of the main oil passage is not larger than the diameters of the first oil passage and the second oil passage, and the outer diameter of the valve element at the bypass oil passage is larger than the diameter of the first oil passage.
9. A clutch control oil passage, comprising:
the clutch master cylinder is communicated with the clutch slave cylinder through a clutch pipeline;
the clutch control valve of any one of claims 1-8, mounted within the clutch line.
10. A vehicle characterized by having the clutch control oil passage set forth in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810474775.0A CN108644253A (en) | 2018-05-17 | 2018-05-17 | Clutch control valve and clutch control oil and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810474775.0A CN108644253A (en) | 2018-05-17 | 2018-05-17 | Clutch control valve and clutch control oil and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108644253A true CN108644253A (en) | 2018-10-12 |
Family
ID=63756578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810474775.0A Pending CN108644253A (en) | 2018-05-17 | 2018-05-17 | Clutch control valve and clutch control oil and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108644253A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102278390A (en) * | 2011-05-30 | 2011-12-14 | 长城汽车股份有限公司 | Governor valve of automobile clutch control oil way |
| CN202510758U (en) * | 2011-12-30 | 2012-10-31 | 长城汽车股份有限公司 | Automatic transmission hand valve |
| CN203743243U (en) * | 2013-12-25 | 2014-07-30 | 盛瑞传动股份有限公司 | Clutch control valve |
| CN205956249U (en) * | 2016-08-19 | 2017-02-15 | 北汽福田汽车股份有限公司 | Hydraulic clutch subassembly and have its vehicle |
| US20170268659A1 (en) * | 2014-08-21 | 2017-09-21 | Zf Friedrichshafen Ag | Hydraulic Control Device for an Automatic Transmission |
-
2018
- 2018-05-17 CN CN201810474775.0A patent/CN108644253A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102278390A (en) * | 2011-05-30 | 2011-12-14 | 长城汽车股份有限公司 | Governor valve of automobile clutch control oil way |
| CN202510758U (en) * | 2011-12-30 | 2012-10-31 | 长城汽车股份有限公司 | Automatic transmission hand valve |
| CN203743243U (en) * | 2013-12-25 | 2014-07-30 | 盛瑞传动股份有限公司 | Clutch control valve |
| US20170268659A1 (en) * | 2014-08-21 | 2017-09-21 | Zf Friedrichshafen Ag | Hydraulic Control Device for an Automatic Transmission |
| CN205956249U (en) * | 2016-08-19 | 2017-02-15 | 北汽福田汽车股份有限公司 | Hydraulic clutch subassembly and have its vehicle |
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Application publication date: 20181012 |
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