GB154632A - Improvements in or connected with hydraulic transmission of power - Google Patents

Improvements in or connected with hydraulic transmission of power

Info

Publication number
GB154632A
GB154632A GB1716717A GB1716717A GB154632A GB 154632 A GB154632 A GB 154632A GB 1716717 A GB1716717 A GB 1716717A GB 1716717 A GB1716717 A GB 1716717A GB 154632 A GB154632 A GB 154632A
Authority
GB
United Kingdom
Prior art keywords
cylinder
pump
piston
lever
pressure
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
Application number
GB1716717A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB1716717A priority Critical patent/GB154632A/en
Publication of GB154632A publication Critical patent/GB154632A/en
Expired legal-status Critical Current

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
    • F16H61/38—Control of exclusively fluid gearing
    • F16H61/40—Control of exclusively fluid gearing hydrostatic
    • F16H61/46—Automatic regulation in accordance with output requirements
    • F16H61/472—Automatic regulation in accordance with output requirements for achieving a target output torque
    • 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
    • F16H61/38—Control of exclusively fluid gearing
    • F16H61/40—Control of exclusively fluid gearing hydrostatic
    • F16H61/46—Automatic regulation in accordance with output requirements

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Reciprocating Pumps (AREA)

Abstract

154,632. Carey, R. F. Nov. 21, 1917. Crank-actuated pumps; stroke, varying; revolving-cylinder pumps. -Apparatus for the hydraulic transmission of power, comprising a variable-capacity pump supplying one or more hydraulic machines, is provided with hand or ordinary means for adjusting the pump capacity, and in addition with means actuated by the pressure in the system, when it exceeds a predetermined value, to limit the delivery at which the hand control can set the pump, the pressure-actuated means comprising a piston or equivalent variably loaded by compressed air or gas, springs, weights, &c. In the form illustrated in Fig. 1, the pressure acts on a piston 1 connected to a larger piston 4 acted on by compressed air contained in a cylinder 5, and the pump control rod 13 is linked to a lever 10 connected to the piston 1 and to a hand lever 15. The cylinder 5 is provided with a hole 19 so disposed that the desired initial air pressure is obtained when the cylinder is screwed home against the shoulder 7. If desired, the cylinder 5 may be filled with liquid and provided with an open pipe 11<a>. In other forms, the piston 1 is moved against the action of springs to operate the lever 10, to move its fulcrum or to adjust the position of the stops between which the hand lever 15 works. In a further modification, the pump control rod 30, Fig. 7, is provided with washers 37 and a spring 20 disposed in a cylinder 38 slidable in the pump casing, the cylinder cap being connected to the lever 10, which is linked to the pump casing and to the control 15. In this case, the spring 20 yields to allow the track 36 to move towards its central position on the attainment of predetermined pressure.
GB1716717A 1917-11-21 1917-11-21 Improvements in or connected with hydraulic transmission of power Expired GB154632A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1716717A GB154632A (en) 1917-11-21 1917-11-21 Improvements in or connected with hydraulic transmission of power

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1716717A GB154632A (en) 1917-11-21 1917-11-21 Improvements in or connected with hydraulic transmission of power

Publications (1)

Publication Number Publication Date
GB154632A true GB154632A (en) 1920-12-09

Family

ID=10090444

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1716717A Expired GB154632A (en) 1917-11-21 1917-11-21 Improvements in or connected with hydraulic transmission of power

Country Status (1)

Country Link
GB (1) GB154632A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2724339A (en) * 1949-06-25 1955-11-22 Houdaille Hershey Corp Automatically and selectively adjustable variable displacement pump

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2724339A (en) * 1949-06-25 1955-11-22 Houdaille Hershey Corp Automatically and selectively adjustable variable displacement pump

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