GB516764A - Improvements in or relating to hydraulic motors - Google Patents

Improvements in or relating to hydraulic motors

Info

Publication number
GB516764A
GB516764A GB28273/39A GB2827339A GB516764A GB 516764 A GB516764 A GB 516764A GB 28273/39 A GB28273/39 A GB 28273/39A GB 2827339 A GB2827339 A GB 2827339A GB 516764 A GB516764 A GB 516764A
Authority
GB
United Kingdom
Prior art keywords
piston
shaft
acts
valve
liquid
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
GB28273/39A
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
Publication of GB516764A publication Critical patent/GB516764A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
    • F03C1/00—Reciprocating-piston liquid engines
    • F03C1/02—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders
    • F03C1/06—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis
    • F03C1/061—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
    • F03C1/0623—Details, component parts
    • F03C1/0631—Wobbler or actuated element
    • F03C1/0634—Actuated element bearing means or driven axis bearing means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
    • F03C1/00—Reciprocating-piston liquid engines
    • F03C1/02—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders
    • F03C1/06—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis
    • F03C1/0602—Component parts, details
    • F03C1/0605—Adaptations of pistons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
    • F03C1/00—Reciprocating-piston liquid engines
    • F03C1/02—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders
    • F03C1/06—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis
    • F03C1/061—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
    • F03C1/00—Reciprocating-piston liquid engines
    • F03C1/02—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders
    • F03C1/06—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis
    • F03C1/061—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
    • F03C1/0615—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders distributing members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
    • F03C1/00—Reciprocating-piston liquid engines
    • F03C1/02—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders
    • F03C1/06—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis
    • F03C1/061—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
    • F03C1/0623—Details, component parts
    • F03C1/0631—Wobbler or actuated element
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
    • F03C1/00—Reciprocating-piston liquid engines
    • F03C1/02—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders
    • F03C1/06—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis
    • F03C1/0678—Control
    • F03C1/0681—Control using a valve in a system with several motor chambers, wherein the flow path through the chambers can be changed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
    • F03C1/00—Reciprocating-piston liquid engines
    • F03C1/02—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders
    • F03C1/06—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis
    • F03C1/0678—Control
    • F03C1/0686—Control by changing the inclination of the swash plate

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)

Abstract

516,764. Hydraulic motors. WAHLMARK, G. A. May 4, 1938, No. 28273/39. Convention date, Feb. 7, 1938. Divided out of 516,721 under which a Specification was laid open to inspection under Sect. 91 of the Acts, Nov. 18. 1938. [Class 69 (ii)] A hydraulic motor is constructed with a number of pistons reciprocable in cylinders formed in a block 20' to actuate a shaft 12 by acting on a swashplate 13 one set of pistons acting to drive the shaft at slow speed and another set at high speed, and the flow of liquid is controlled by a tubular valve 74 surrounding the shaft 12. Between the liquid inlet 14 and outlet 15 is arranged a valve 16 of the kind described in Specification 516,721 which connects the cylinders 26 alternately to the inlet and outlet. For slow speeds the valve 74 is set so as to cause the liquid to enter the left-hand end of each of the cylinders 26 and to act on a piston 31 which in turn moves a piston rod 32 to the right and causes a conical end 32<1> of the rod to act on the swashplate. For high speeds the valve 74 is set so that the liquid enters each chamber 26 via ports 77, 73 and acts on the reverse side of the piston 31 and maintains it in a stationary position. The piston rod 32 then acts as a piston and owing to its smaller area it is moved at a greater speed assuming a constant inflow' The piston 32 is guided by a bushing 33, which is formed with a cut-away part 33a forming a guide for the hollow cylinder 31 when this is operative. In a modification, Fig. 6, the swashplate 235 is pivoted about a pivot 285 arranged below the axis of the shaft 212, and the speed of the motor may be varied by angular movement of the plate 235. This is preferably effected by means of an axially movable wedge or cam 286' which acts on a roller 288 mounted in the plate. The cam 286' is moved by means of a screw 290 engaging a thread in a ball 291 supported in a socket 292 on a lever 293 having a ball-and-socket connection with a sleeve 294 which slides on the shaft 212 and operates the cam 286<1>. Specification 516,565 also is referred to.
GB28273/39A 1938-02-07 1938-05-04 Improvements in or relating to hydraulic motors Expired GB516764A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US516764XA 1938-02-07 1938-02-07

Publications (1)

Publication Number Publication Date
GB516764A true GB516764A (en) 1940-01-10

Family

ID=21972726

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28273/39A Expired GB516764A (en) 1938-02-07 1938-05-04 Improvements in or relating to hydraulic motors

Country Status (1)

Country Link
GB (1) GB516764A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3151569A (en) * 1960-10-19 1964-10-06 Schweizerische Lokomotiv Axial piston pump having a control device for varying the delivery
FR2411981A1 (en) * 1977-12-16 1979-07-13 Borg Warner VARIABLE CAPACITY COMPRESSOR

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3151569A (en) * 1960-10-19 1964-10-06 Schweizerische Lokomotiv Axial piston pump having a control device for varying the delivery
FR2411981A1 (en) * 1977-12-16 1979-07-13 Borg Warner VARIABLE CAPACITY COMPRESSOR

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