GB496466A - Improvements in feed devices for clutches for hydraulically operated change speed gears - Google Patents
Improvements in feed devices for clutches for hydraulically operated change speed gearsInfo
- Publication number
- GB496466A GB496466A GB14593/38A GB1459338A GB496466A GB 496466 A GB496466 A GB 496466A GB 14593/38 A GB14593/38 A GB 14593/38A GB 1459338 A GB1459338 A GB 1459338A GB 496466 A GB496466 A GB 496466A
- Authority
- GB
- United Kingdom
- Prior art keywords
- speed
- clutches
- exhaust
- pressure
- clutch
- 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
Links
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
- F16D25/00—Fluid-actuated clutches
- F16D25/10—Clutch systems with a plurality of fluid-actuated clutches
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structure Of Transmissions (AREA)
- Gear-Shifting Mechanisms (AREA)
Abstract
496,466. Variable - speed gearing. KEGRESSE, A. May 16, 1938, No. 14593. Convention date, April 16. [Class 80 (ii)] A centrifugally-actuated control valve for a group of hydraulically operated clutches of a change-speed gear of the kind described in Specifications 466,543, 482,632, and 489,317, comprises a double-acting valve member 5, 6 radially arranged on the rotating clutch housing 2, the inner end of which controls the supply of pressure fluid through passages 49, 50 from a pump 44 and the outer end the exhaust of the pressure fluid through an outlet 71. At a certain minimum engine speed the valve 5, 6 moves out under the action of centrifugal force against a spring 11 to pass the pressure fluid to a chamber 53 behind the diaphragm 16 of the first speed clutch 17, 18 and to close the exhaust outlet 71. The first-speed clutch is thereby engaged. The passage of the pressure fluid from the pressure chamber of the firstspeed clutch is controlled by valves 12 of different spring-loadings for the second and third speed clutches 17, 23 and 33, 32 respectively, which valves operate as the engine speed and pressure of the fluid rises to bring in second and third speeds successively. The driven gears 36, 26 and 21 are in free-wheel connection with the driven shaft 22 so that on the higher speeds the lower speed gears over-run. As the engine speed falls the third and second speed clutches are successively released by the fall in pressure of the fluid, the valves 12 opening to exhaust, and finally the valve 5, 6 is moved inwardly to open the exhaust outlet 71 to release the first-speed clutch. If the vehicle is stopped suddenly by application of the brakes the valve 5, 6 may open to exhaust first to release all the clutches simultaneously.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR496466X | 1938-04-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB496466A true GB496466A (en) | 1938-11-30 |
Family
ID=8904879
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB14593/38A Expired GB496466A (en) | 1938-04-16 | 1938-05-16 | Improvements in feed devices for clutches for hydraulically operated change speed gears |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB496466A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2521239A (en) * | 1947-07-26 | 1950-09-05 | Gen Motors Corp | Marine gear |
US2853167A (en) * | 1954-02-23 | 1958-09-23 | Gen Motors Corp | Speed responsive fluid clutch with variable pressure controls |
-
1938
- 1938-05-16 GB GB14593/38A patent/GB496466A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2521239A (en) * | 1947-07-26 | 1950-09-05 | Gen Motors Corp | Marine gear |
US2853167A (en) * | 1954-02-23 | 1958-09-23 | Gen Motors Corp | Speed responsive fluid clutch with variable pressure controls |
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