CN1170066C - Combined buffer valve - Google Patents
Combined buffer valve Download PDFInfo
- Publication number
- CN1170066C CN1170066C CNB991065395A CN99106539A CN1170066C CN 1170066 C CN1170066 C CN 1170066C CN B991065395 A CNB991065395 A CN B991065395A CN 99106539 A CN99106539 A CN 99106539A CN 1170066 C CN1170066 C CN 1170066C
- Authority
- CN
- China
- Prior art keywords
- valve
- spool
- communicates
- way valve
- valve body
- 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.)
- Expired - Fee Related
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- Gear-Shifting Mechanisms (AREA)
- Multiple-Way Valves (AREA)
Abstract
The present invention relates to a gear shifting combined buffering valve for an electronic automatic speed changer in vehicles, which can effectively overcome the inertial impact when a gear shifting oil cylinder moves so as to stably shift gears. The present invention has the advantages of compact structure and low cost, and makes a valve core perform the function of a buffering piston when the oil cylinder works and simultaneously perform the function of controlling direction changes and buffering directions so that the valve core is used as an executive element as well as a control element.
Description
Affiliated technical field:
The present invention is the gearshift combined buffer valve in a kind of automotive electronics automatic transmission.The present invention can effectively overcome the inertia impact of gearshift oil cylinder motion.Make the selector fork of the promotion mechanical gear box of oil cylinder balance, realize steadily gearshift.
Background technique:
At present, adopt the mechanical gear box gearshift mode of electrichydraulic control.When oil cylinder promotes the shift fork gearshift, particularly when low gear is shifted gears, tangible impulsive sound is arranged, at this moment make the flexibility of automobile running be subjected to great infringement, can't large-scale promotion.
Summary of the invention:
Purpose of the present invention provides a kind of compact structure, and cost is low.Utilize the combination of the damping hole on one-way valve and the spool, make spool both play the damper piston effect of oil cylinder operation, play the effect of control commutation buffering direction again simultaneously.Spool be executive component be again control unit.
Spool profile of the present invention is a piston-like, is to load onto this one-way valve on valve body.Make the pressure oil that enters from the hydraulic fluid port end, left chamber that can not the direct admission valve body, but push right one-way valve open, make pressure oil enter the lumen of valve body.Spool is contained in the valve body.
Be drilled with damping hole on the spool, be communicated with left chamber and lumen on the valve body, spool is contained in the valve body center.Simultaneously, the valve body upper right chamber communicates with exhaust end by passage.Chamber, a left side communicates by end with left one-way valve, and lumen communicates with the end of opening of right one-way valve.The end of opening of left side one-way valve communicates with the end that ends of right one-way valve.The spool left end is loaded onto joint, is connected the passage of valve body bonnet boring conduct and exhaust port with gearshift oil cylinder piston pull bar.O-ring seal is loaded onto in the valve body front end and back end.Fixing left one-way valve of left oil port joint and spring.Communicate with left chamber by left one-way valve simultaneously, right oil port communicates with lumen.Right one-way valve and spring are fixed by plug.
Since adopt such scheme, can be when the gearshift oil cylinder move to by end left, and combined buffer valve plays buffer function.When the gearshift oil cylinder moved right by end, combined buffer valve also can play buffer function.And cushion effect is significantly less than the cushion effect when left movement.Thereby effectively guaranteed the self-shifting stationarity of gearbox.
Description of drawings:
Fig. 1 is a plan view of the present invention.Fig. 2 is the A-A sectional view.
Embodiment
As shown in Figure 1: spool 9 profiles of the present invention are piston-like, are to load onto left one-way valve 8 on valve 1.Make the pressure oil that enters from left oil port 7, lumen 3 that can not direct admission valve body 1.Spool 9 is contained in central position in the valve body 1.Be drilled with damping hole 12 on the spool 9, be communicated with left chamber 2 lumens 3 on the valve body 1.Valve body upper right chamber 4 communicates with exhaust end by exhaust port 11 simultaneously.Chamber 2, a left side communicates by end 17 with left one-way valve 8, and lumen 3 communicates with the end of opening of right one-way valve 6.Spool 9 left ends are loaded onto joint 10, are connected with gearshift oil cylinder piston pull bar 13.Valve body bonnet 5 boring, as with the passage of exhaust port 11.O-ring seal 15,16 is loaded onto in valve body 1 front end and back end.Left oil port joint 7 fixing left one-way valve 8 and springs.The end of opening of left side one-way valve 8 communicates with the end that ends of right one-way valve 6.Simultaneously, communicate with left chamber 2 by left one-way valve 8, right oil port 14 communicates with lumen 3, and right one-way valve 6 and spring are fixing by plug 18.
Claims (3)
1, a kind of combined buffer valve is made up of spool valve body, it is characterized in that: the spool profile is the piston-like spool, be contained in the valve body center, be drilled with damping hole on the spool, be communicated with the left chamber and the lumen of valve body, the right chamber on the valve body communicates with exhaust port by passage, and left chamber communicates by end with left one-way valve, lumen communicates with the end of opening of right one-way valve, and the end of opening of left one-way valve communicates with the end that ends of right one-way valve.
2, combined buffer valve according to claim 1 is characterized in that: the spool left end is loaded onto joint, is connected with gearshift oil cylinder piston pull bar.
3, combined buffer valve according to claim 1 is characterized in that: have two oil inlet and outlets on the valve body, left oil port communicates with left chamber by left one-way valve, and right oil port communicates with lumen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB991065395A CN1170066C (en) | 1999-05-19 | 1999-05-19 | Combined buffer valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB991065395A CN1170066C (en) | 1999-05-19 | 1999-05-19 | Combined buffer valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1274809A CN1274809A (en) | 2000-11-29 |
| CN1170066C true CN1170066C (en) | 2004-10-06 |
Family
ID=5272415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB991065395A Expired - Fee Related CN1170066C (en) | 1999-05-19 | 1999-05-19 | Combined buffer valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1170066C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103322187B (en) * | 2013-06-27 | 2017-07-25 | 中国北方车辆研究所 | The device that a kind of pneumatic AMT shifters berth-changing strength control is buffered with gear shift |
| CN109611548A (en) * | 2018-12-03 | 2019-04-12 | 湖北航天技术研究院特种车辆技术中心 | A kind of shift control valve |
-
1999
- 1999-05-19 CN CNB991065395A patent/CN1170066C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1274809A (en) | 2000-11-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI YINGDAXIN AUTOMOBILE ELECTRONIC CO.,LTD. Free format text: FORMER OWNER: OUYANG KANGMEI Effective date: 20030807 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20030807 Address after: 201712 No. 5458, Zhao Zhao Road, Qingpu District, Shanghai Applicant after: Shanghai Yingdaxin Automotive Electronic Co., Ltd. Address before: 400016 Daping Changjiang Road, No. two, Chongqing, 217 Applicant before: Ouyang Kangmei |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20080916 Pledge (preservation): Preservation |
|
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20090316 Pledge (preservation): Preservation registration |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20041006 Termination date: 20100519 |