JPS5769160A - Hydraulically operated non-step variable speed change gear for vehicle - Google Patents
Hydraulically operated non-step variable speed change gear for vehicleInfo
- Publication number
- JPS5769160A JPS5769160A JP14333980A JP14333980A JPS5769160A JP S5769160 A JPS5769160 A JP S5769160A JP 14333980 A JP14333980 A JP 14333980A JP 14333980 A JP14333980 A JP 14333980A JP S5769160 A JPS5769160 A JP S5769160A
- Authority
- JP
- Japan
- Prior art keywords
- vehicle
- speed change
- operating lever
- transmitted
- starting
- 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.)
- Granted
Links
Landscapes
- Arrangement Of Transmissions (AREA)
- Motor Power Transmission Devices (AREA)
Abstract
PURPOSE: To attain smooth starting of a vehicle by constituting a speed change gear such that power is transmitted from an engine to a hydraulic pump by way of a fluid torque converter upon starting of the vehicle.
CONSTITUTION: Upon starting of a vehicle, an open/close valve 10 is first closed and a speed change operating lever 23 is set to a first position L. Since a spool valve 36 is thereupon held in a closed position, a hydraulic operating chamber 22 is opened to an oil tank 11' so that a piston 21 may not operate and hence a directly connected clutch D is in its open position. Then, if the rotational speed of an engine E is raised gradually, the rotary torque of a drive shaft 13 is transmitted to an input power shaft 1 of a hydraulic pump 2 at a rate of torque corresponding to an applied load by way of a fluid torque converter F. And, while the speed change operating lever 23 is shifted toward a second position T after start of the vehicle, the spool valve 36 of a control valve V is moved to its open position at a predetermined position of the speed change operating lever 23 to establish communication of an oil passage to bring the directly connected clutch D into a connected position so that the rotary torque of the drive shaft 13 is transmitted directly to the input power shaft 1.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14333980A JPS5769160A (en) | 1980-10-14 | 1980-10-14 | Hydraulically operated non-step variable speed change gear for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14333980A JPS5769160A (en) | 1980-10-14 | 1980-10-14 | Hydraulically operated non-step variable speed change gear for vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5769160A true JPS5769160A (en) | 1982-04-27 |
| JPS6255026B2 JPS6255026B2 (en) | 1987-11-18 |
Family
ID=15336481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14333980A Granted JPS5769160A (en) | 1980-10-14 | 1980-10-14 | Hydraulically operated non-step variable speed change gear for vehicle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5769160A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106499743A (en) * | 2016-12-16 | 2017-03-15 | 贵州凯星液力传动机械有限公司 | A kind of clutch pressure control structure of Hydrodynamic transmission |
| CN106704537A (en) * | 2015-11-16 | 2017-05-24 | 熵零股份有限公司 | Power system |
-
1980
- 1980-10-14 JP JP14333980A patent/JPS5769160A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106704537A (en) * | 2015-11-16 | 2017-05-24 | 熵零股份有限公司 | Power system |
| CN106499743A (en) * | 2016-12-16 | 2017-03-15 | 贵州凯星液力传动机械有限公司 | A kind of clutch pressure control structure of Hydrodynamic transmission |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6255026B2 (en) | 1987-11-18 |
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