GB137638A - Improvements relating to the transmission of motion at variable speeds - Google Patents

Improvements relating to the transmission of motion at variable speeds

Info

Publication number
GB137638A
GB137638A GB355319A GB355319A GB137638A GB 137638 A GB137638 A GB 137638A GB 355319 A GB355319 A GB 355319A GB 355319 A GB355319 A GB 355319A GB 137638 A GB137638 A GB 137638A
Authority
GB
United Kingdom
Prior art keywords
plate
valve
valves
rotors
ports
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
GB355319A
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.)
JAMES BROOKSBANK SMITH
Original Assignee
JAMES BROOKSBANK SMITH
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 JAMES BROOKSBANK SMITH filed Critical JAMES BROOKSBANK SMITH
Priority to GB355319A priority Critical patent/GB137638A/en
Publication of GB137638A publication Critical patent/GB137638A/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H39/00Rotary fluid gearing using pumps and motors of the volumetric type, i.e. passing a predetermined volume of fluid per revolution
    • F16H39/04Rotary fluid gearing using pumps and motors of the volumetric type, i.e. passing a predetermined volume of fluid per revolution with liquid motor and pump combined in one unit
    • F16H39/06Rotary fluid gearing using pumps and motors of the volumetric type, i.e. passing a predetermined volume of fluid per revolution with liquid motor and pump combined in one unit pump and motor being of the same type
    • F16H39/08Rotary fluid gearing using pumps and motors of the volumetric type, i.e. passing a predetermined volume of fluid per revolution with liquid motor and pump combined in one unit pump and motor being of the same type each with one main shaft and provided with pistons reciprocating in cylinders
    • F16H39/16Rotary fluid gearing using pumps and motors of the volumetric type, i.e. passing a predetermined volume of fluid per revolution with liquid motor and pump combined in one unit pump and motor being of the same type each with one main shaft and provided with pistons reciprocating in cylinders with cylinders arranged perpendicular to the main axis of the gearing

Landscapes

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

Abstract

137,638. Smith, R. J., and Smith, J. B. Feb. 13, 1919. Revolving-cylinder pumps.-In hydraulic apparatus for transmitting motion at variable speeds of the type employing a radial-cylinder pump and motor disposed on opposite sides of a stationary valve-plate, the pistons 6, Fig. 1, are kept in contact with cross-heads 7 engaging a floating ring 8, which rotates within an adjustable or fixed eccentrically-disposed ring 11. Extensions 9 of the cross-heads work in guides 10 bolted to the rotors. The cylinders are disposed in series. The stationary valve-plate 17 is provided with ports 16, 18, and with chambers 20, 21 connected to the ports and containing spring-pressed valves 24. Each rotor has a balance chamber 27 connected to one of the chambers 20, 21, and, when pressure is admitted to a chamber 27 by a valve 24, a piston 28 is forced outwards, and the oil pressure reacts on the rotor to hold it up to the valve plate. When there is no pressure in the system, springs 33 hold the rotors up. In modifications, the balancing pistons 28 are contained in chambers in the valve-plate 17, as shown in Fig. 7, and where the motor is always to rotate in the same direction the valves 24 are dispensed with. The central portion of the plate 17 may be made concave to receive a loose plate 66, which is free to swivel but is prevented from rotating. In a further modification, the rotors are kept up. to the valve-plate by forming the couplings between the rotors and their shafts with inclined claws. The apparatus is also provided with cushioning-devices and release and non-return valves, as described in Specification 137,639, [Class 69 (ii), Hydraulic presses &c.]. the cushioning-devices comprising spring-pressed pistons 34 in cylinders 35 communicating with the ports in the valve' 17, the pistons having relief valves 39, which are opened when their stems contact with adjustable rods 40. The release valves 43, 44 communicate each with one of the ports 16, 18, and are operated by cam surfaces 45, 46 on the wheel 13 for setting the eccentric 11.
GB355319A 1919-02-13 1919-02-13 Improvements relating to the transmission of motion at variable speeds Expired GB137638A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB355319A GB137638A (en) 1919-02-13 1919-02-13 Improvements relating to the transmission of motion at variable speeds

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB355319A GB137638A (en) 1919-02-13 1919-02-13 Improvements relating to the transmission of motion at variable speeds

Publications (1)

Publication Number Publication Date
GB137638A true GB137638A (en) 1920-01-22

Family

ID=9760500

Family Applications (1)

Application Number Title Priority Date Filing Date
GB355319A Expired GB137638A (en) 1919-02-13 1919-02-13 Improvements relating to the transmission of motion at variable speeds

Country Status (1)

Country Link
GB (1) GB137638A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2481754A (en) * 1946-07-27 1949-09-13 Caterpillar Tractor Co Pump
US2530337A (en) * 1946-04-12 1950-11-14 Edward S Marnon Fluid pressure unit
US2553850A (en) * 1946-05-18 1951-05-22 Oilgear Co Apparatus for scavenging hydrodynamic machines

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2530337A (en) * 1946-04-12 1950-11-14 Edward S Marnon Fluid pressure unit
US2553850A (en) * 1946-05-18 1951-05-22 Oilgear Co Apparatus for scavenging hydrodynamic machines
US2481754A (en) * 1946-07-27 1949-09-13 Caterpillar Tractor Co Pump

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