ES461161A1 - Pneumatic gear change system - has pressure reduction valve positioned between gear change servo supply and selector valves - Google Patents
Pneumatic gear change system - has pressure reduction valve positioned between gear change servo supply and selector valvesInfo
- Publication number
- ES461161A1 ES461161A1 ES461161A ES461161A ES461161A1 ES 461161 A1 ES461161 A1 ES 461161A1 ES 461161 A ES461161 A ES 461161A ES 461161 A ES461161 A ES 461161A ES 461161 A1 ES461161 A1 ES 461161A1
- Authority
- ES
- Spain
- Prior art keywords
- gear change
- pressure reduction
- reduction valve
- check valves
- pneumatic
- 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
- F16H61/26—Generation or transmission of movements for final actuating mechanisms
- F16H61/28—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
- F16H61/2807—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted using electric control signals for shift actuators, e.g. electro-hydraulic control therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/10—Conjoint control of vehicle sub-units of different type or different function including control of change-speed gearings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/18—Conjoint control of vehicle sub-units of different type or different function including control of braking systems
-
- 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
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/02—Selector apparatus
- F16H59/04—Ratio selector apparatus
- F16H59/045—Ratio selector apparatus consisting of fluid valves
-
- 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
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/50—Inputs being a function of the status of the machine, e.g. position of doors or safety belts
- F16H59/56—Inputs being a function of the status of the machine, e.g. position of doors or safety belts dependent on signals from the main clutch
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
- Gear-Shifting Mechanisms (AREA)
Abstract
The pneumatic gear change assembly consists of a check valve whose moving part is actuated each time the clutch pedal is depressed. The valve makes a connection between a compressed air source and the gear change servo motors. The reduction gear is actuated by a piston cylinder assembly whose pressure chambers are alternatively supplied by two electro magnetic check valves. The electromagnetic windings are selected by a manual switch and current is supplied via the clutch pedal linked cam follower. The check valves are connected to the main check valves via a pressure reduction valve.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT25850/76A IT1067439B (en) | 1976-07-30 | 1976-07-30 | PNEUMATIC GROUP TO FEED THE COMMAND ORGANS OF THE GEARS OF THE GEARBOXES CHANGES OF MOTOR VEHICLES AND SIMILAR |
Publications (1)
Publication Number | Publication Date |
---|---|
ES461161A1 true ES461161A1 (en) | 1978-06-01 |
Family
ID=11217921
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES461161A Expired ES461161A1 (en) | 1976-07-30 | 1977-07-29 | Pneumatic gear change system - has pressure reduction valve positioned between gear change servo supply and selector valves |
Country Status (4)
Country | Link |
---|---|
DE (1) | DE2733595A1 (en) |
ES (1) | ES461161A1 (en) |
FR (1) | FR2359720A1 (en) |
IT (1) | IT1067439B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3245405A1 (en) * | 1982-12-08 | 1984-06-14 | Wabco Westinghouse Fahrzeugbremsen GmbH, 3000 Hannover | FOREIGN POWERED TRANSMISSION WITH GEAR LOCK |
DE3414107A1 (en) * | 1984-04-13 | 1985-10-24 | Rudolf Prof. Dr.-Ing. 6100 Darmstadt Franke | Variable-speed spur-gear transmission shiftable under load |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1235566A (en) * | 1968-06-19 | 1971-06-16 | Gkn Transmissions Ltd | Improvements in or relating to control means for an auxiliary change-speed gearing |
-
1976
- 1976-07-30 IT IT25850/76A patent/IT1067439B/en active
-
1977
- 1977-07-26 DE DE19772733595 patent/DE2733595A1/en not_active Withdrawn
- 1977-07-29 ES ES461161A patent/ES461161A1/en not_active Expired
- 1977-07-29 FR FR7724128A patent/FR2359720A1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
FR2359720A1 (en) | 1978-02-24 |
DE2733595A1 (en) | 1978-03-16 |
IT1067439B (en) | 1985-03-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FD1A | Patent lapsed |
Effective date: 19990601 |