GB894110A - Control means for hydraulically operated vehicle gear-change mechanisms - Google Patents
Control means for hydraulically operated vehicle gear-change mechanismsInfo
- Publication number
- GB894110A GB894110A GB3359A GB3359A GB894110A GB 894110 A GB894110 A GB 894110A GB 3359 A GB3359 A GB 3359A GB 3359 A GB3359 A GB 3359A GB 894110 A GB894110 A GB 894110A
- Authority
- GB
- United Kingdom
- Prior art keywords
- piston
- speed
- clutch
- change
- valve
- 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
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/02—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used
- F16H61/0262—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being hydraulic
- F16H61/0265—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being hydraulic for gearshift control, e.g. control functions for performing shifting or generation of shift signals
- F16H61/0267—Layout of hydraulic control circuits, e.g. arrangement of valves
- F16H61/0269—Layout of hydraulic control circuits, e.g. arrangement of valves characterised by low integration or small number of valves
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear-Shifting Mechanisms (AREA)
- Structure Of Transmissions (AREA)
Abstract
894,110. Change-speed control. WICKMAN, A. C. Dec. 16, 1959 [Jan. 1, 1959], No. 33/59. Class 80 (2). A vehicle change-speed gear comprises epicyclic gear units at the ends of an intermediate shaft 4 between driving and driven shafts 2, 3, the elements of the units being controlled by cone clutches 8, 16, 18 engageable by hydraulic pistons 10, 17, 19 under the control of a piston selector valve 32. The latter is engaged by a ball detent 38 engaging in circumferential grooves on the valve stem which is movable by a lever 36 connected to a speed-responsive governor and works in a ported sleeve 31 which is movable axially by the accelerator pedal 34, to modify the speed-responsive movement of the valve 32. The arrangement is such that with increasing depression of pedal 34 the speed at which the governor can effect an up change is increased, and conversely. A main control valve 41 is moved manually to the right for forward drive and to the left for reverse. In first gear liquid passes direct to piston 17 which engages clutch 16 to hold sun pinion 15; in second, flow is through passages a, c and piston 10 and clutch 8 lock annulus 5 ; in third, flow is through passages a, b and piston 19 and clutch 18 lock sun pinions 13, 15; while in fourth, piston 19 remains effective and piston 10 engages clutch 8, and shafts 2, 3 rotate at the same speed. For reverse, a brake 25 locks an annulus 24.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3359A GB894110A (en) | 1959-01-01 | 1959-01-01 | Control means for hydraulically operated vehicle gear-change mechanisms |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3359A GB894110A (en) | 1959-01-01 | 1959-01-01 | Control means for hydraulically operated vehicle gear-change mechanisms |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB894110A true GB894110A (en) | 1962-04-18 |
Family
ID=9697190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3359A Expired GB894110A (en) | 1959-01-01 | 1959-01-01 | Control means for hydraulically operated vehicle gear-change mechanisms |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB894110A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117841711A (en) * | 2024-03-06 | 2024-04-09 | 湘潭汇智电气有限公司 | Direction control and speed regulation device for mining electric locomotive |
-
1959
- 1959-01-01 GB GB3359A patent/GB894110A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117841711A (en) * | 2024-03-06 | 2024-04-09 | 湘潭汇智电气有限公司 | Direction control and speed regulation device for mining electric locomotive |
| CN117841711B (en) * | 2024-03-06 | 2024-05-10 | 湘潭汇智电气有限公司 | Direction control and speed regulation device for mining electric locomotive |
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