GB292178A - Improvements in and relating to self-propelled vehicles - Google Patents
Improvements in and relating to self-propelled vehiclesInfo
- Publication number
- GB292178A GB292178A GB3161726A GB3161726A GB292178A GB 292178 A GB292178 A GB 292178A GB 3161726 A GB3161726 A GB 3161726A GB 3161726 A GB3161726 A GB 3161726A GB 292178 A GB292178 A GB 292178A
- Authority
- GB
- United Kingdom
- Prior art keywords
- engine
- clutch
- dog
- gear
- throttle
- 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
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
- F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
- F16H3/087—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears
- F16H3/093—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears with two or more countershafts
- F16H3/097—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears with two or more countershafts the input and output shafts being aligned on the same axis
-
- 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
-
- 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
- F16H2718/00—Mechanisms for speed-change of planetary gearing, the speed change control being dependent on function parameters of the gearing
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
Abstract
292,178. Ord, L. C. Dec. 13, 1926. Automatic speed or power control; controlling different functions by same handle or lever. - Rotates to vehicles having an epicyclic gear serving as the lowest or first gear and associated with a variable resistance such that with increase in engine speed up to a given point the torque transmitted to the driving wheels will increase. According to the present invention, (1) the resistance is at first controlled by hand and at a predetermined, point is automaticallv controlled in accordance with the engine speed, or (2) the variable load is dependent on the throttle opening and a plurality of constantly meshed gears controlled by a dog or like clutches is provided. Means for synchronizing the speeds of the dog clutch parts may be provided. In the construction shown in Fig. 2, the engine shaft i drives the propeller shaft j through any one of the pairs of gear wheels e<2>, e<1>, f<1> f<2>, g<1>, g<2>, according to which of the clutches e<3>, f<3>, g<3> is operative. The lowest gear e<2>, e<1> drives through an epicyclic gear b, one driven member of which can drive the shaft j through gearing h<1>, h<2>, while the other member drives an hydraulic pump or other resistance (not shown) by means of a connecting rod d. A valve in the hydraulic circuit is adapted to be actuated by the engine throttle controlling means, so that when the throttle is practically closed the valve is open and the engine turns idly without driving the vehicle. To start the vehicle the throttle is opened and the valve gradually closed; this causes a gradually increasing resistance to the movement of the pump member of the differential gear until finally the torque transmitted to the other member h<1> is sufficient to set the vehicle in motion. At a predetermined point the hand control of the resistance ceases and control is then automatically dependent upon the engine speed, e.g. by a suitable governor. Instead of the hydraulic resistance, a band brake, friction clutch, magnetic clutch, or electric generator may be employed. The higher gear ratios may be brought into use by hand or automatically and the gears may be controlled as described in Specification 290,687. 'Where a non- reversing engine is employed two sets of gears may be employed, one set being disconnected when the other set is in use. A main friction clutch is dispensed with, but a spring coupling (not shown) is preferably provided between the engine and the gearing, and the relative movement of the two parts of this coupling may be used to operate a switch controlling the engine throttle and gear-changing means so as to accelerate or decelerate the engine as required when speed changes are being made and so relieve the dog clutches from load and allow them to be readily disengaged. Mechanical means may be employed to control the engine throttle so as to facilitate the engagement and disengagement of the dog clutches. In the construction shown in Fig. 3 one member of the dog clutch carries a loose sleeve having T-slots n engaged by pins n' on the clutch member. This sleeve has a coned end l<1> adapted to engage a corresponding cone l<2> on the driving member of the clutch. When the clutch is disengaged the cone faces are also separated but the sleeve l, being acted upon by a spring m, extends beyond the dog teeth of the driven clutch member and the pins n<1> are in the heads of the T-slots, thus permitting relative rotation between the sleeve and its clutch member. On movement of the driven dogs towards the driving dogs the coned faces first engage each other, and the sleeve l is driven and transmits the drive to the clutch member when the pins n' reach the ends of their slots. The relative rotation of the sleeve and the clutch member causes axial movement of a ring p having pins p' engaging diagonal slots o in the sleeve and other slots in the clutch member parallel to the axis, and this ring is connected to the engine throttle so that the engine speed is increased or decreased by the axial movement of the ring. It is stated that by these means the speeds of the two members of the dog clutch synchronise and are brought into engagement, the ring being then returned to its central position. In a modification the two parts of a spring coupling carry a floating lever, connected by a bell-crank lever to a sliding ring which controls the throttle, so that relative movement between parts of the spring coupling, when it is under load in either direction, causes the engine speed to be increased or decreased as required to allow the corresponding dog clutch to be readily disengaged. One-way dog or toothed clutches may be employed, the only synchronizing control required in this case being to accelerate the engine when gear changing under load.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3161726A GB292178A (en) | 1926-12-13 | 1926-12-13 | Improvements in and relating to self-propelled vehicles |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3161726A GB292178A (en) | 1926-12-13 | 1926-12-13 | Improvements in and relating to self-propelled vehicles |
Publications (1)
Publication Number | Publication Date |
---|---|
GB292178A true GB292178A (en) | 1928-06-13 |
Family
ID=10325816
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3161726A Expired GB292178A (en) | 1926-12-13 | 1926-12-13 | Improvements in and relating to self-propelled vehicles |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB292178A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2052959A2 (en) * | 2007-10-18 | 2009-04-29 | Shingu Auto Mobis Co., Ltd. | Transmission and transport device including power train using the transmission |
-
1926
- 1926-12-13 GB GB3161726A patent/GB292178A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2052959A2 (en) * | 2007-10-18 | 2009-04-29 | Shingu Auto Mobis Co., Ltd. | Transmission and transport device including power train using the transmission |
EP2052959A3 (en) * | 2007-10-18 | 2012-05-23 | Shingu Auto Mobis Co., Ltd. | Transmission and transport device including power train using the transmission |
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