GB1170239A - Improvements in or relating to Fluid Pressure Operated Reciprocating Motor Systems. - Google Patents

Improvements in or relating to Fluid Pressure Operated Reciprocating Motor Systems.

Info

Publication number
GB1170239A
GB1170239A GB5434565A GB5434565A GB1170239A GB 1170239 A GB1170239 A GB 1170239A GB 5434565 A GB5434565 A GB 5434565A GB 5434565 A GB5434565 A GB 5434565A GB 1170239 A GB1170239 A GB 1170239A
Authority
GB
United Kingdom
Prior art keywords
valve
piston
supply line
pressure
chamber
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
GB5434565A
Inventor
Ronald Walters
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.)
Unisys Group Services Ltd
Original Assignee
Sperry Rand Ltd
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 Sperry Rand Ltd filed Critical Sperry Rand Ltd
Priority to GB5434565A priority Critical patent/GB1170239A/en
Publication of GB1170239A publication Critical patent/GB1170239A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L25/00—Drive, or adjustment during the operation, or distribution or expansion valves by non-mechanical means
    • F01L25/02—Drive, or adjustment during the operation, or distribution or expansion valves by non-mechanical means by fluid means
    • F01L25/04—Drive, or adjustment during the operation, or distribution or expansion valves by non-mechanical means by fluid means by working-fluid of machine or engine, e.g. free-piston machine
    • F01L25/06—Arrangements with main and auxiliary valves, at least one of them being fluid-driven
    • 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
    • F03C1/007—Reciprocating-piston liquid engines with single cylinder, double-acting piston
    • F03C1/0073—Reciprocating-piston liquid engines with single cylinder, double-acting piston one side of the double-acting piston being always under the influence of the liquid under pressure

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Actuator (AREA)

Abstract

1, 170, 239. Reciprocating fluid motors; valve gear. SPERRY RAND Ltd. Feb. 1, 1967 [Dec. 22, 1965], No. 54345/65. Headings F1A and F1M. A hydraulic or pneumatic motor comprises a piston 2, Fig. 1, continuously supplied with pressure fluid on its smaller effective area side Y and alternately connected to pressure and exhaust on its larger effective area side X, a reversing valve 4 being fluid actuated by a valve 5 responsive to the pressure in the supply line 3, so that when the supply line pressure rises to a predetermined pressure due to piston 2 reaching the end of its stroke or stalling, valve 5 reverses valve 4 to reverse the piston stroke. Valve 5 is adjustably loaded by a spring 34, Fig. 2, with spacers 35, and has an actuating chamber C connected to the supply line 3. In its left-hand position shown, valve 5 connects the actuating chambers A and B of valve 4 to exhaust, a detent mechanism 17 holding valve 4 in position. When piston 2 reaches the end of its stroke or stalls, and the supply line pressure rises above the predetermined value, valve 5 is moved to the right against spring 34, and connects chamber A of valve 4 to the side X of piston 2 and chamber B to the supply line. The effective piston area in chamber A is twice that in chamber B, so that, depending on whether the side X of piston 2 is connected to pressure or exhaust, valve 4 will be moved to the right or left to reverse the connections to motor 1. When piston 2 begins to move on its next stroke, the supply line pressure falls, and spring 34 returns valve 5 to its lefthand position, in which it connects chambers A and B of valve 4 to exhaust.
GB5434565A 1965-12-22 1965-12-22 Improvements in or relating to Fluid Pressure Operated Reciprocating Motor Systems. Expired GB1170239A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5434565A GB1170239A (en) 1965-12-22 1965-12-22 Improvements in or relating to Fluid Pressure Operated Reciprocating Motor Systems.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5434565A GB1170239A (en) 1965-12-22 1965-12-22 Improvements in or relating to Fluid Pressure Operated Reciprocating Motor Systems.

Publications (1)

Publication Number Publication Date
GB1170239A true GB1170239A (en) 1969-11-12

Family

ID=10470700

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5434565A Expired GB1170239A (en) 1965-12-22 1965-12-22 Improvements in or relating to Fluid Pressure Operated Reciprocating Motor Systems.

Country Status (1)

Country Link
GB (1) GB1170239A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2929831A1 (en) * 1978-07-29 1980-02-14 Kawasaki Heavy Ind Ltd CONTROL DEVICE FOR A DOUBLE ACTING HYDRAULIC CYLINDER WITH DIFFERENTIAL PISTON
GB2147368A (en) * 1983-09-28 1985-05-09 Presswell Engineering Limited Hydraulic apparatus
US5572918A (en) * 1994-04-25 1996-11-12 Mannesmann Aktiengesellschaft Multi-functional valve

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2929831A1 (en) * 1978-07-29 1980-02-14 Kawasaki Heavy Ind Ltd CONTROL DEVICE FOR A DOUBLE ACTING HYDRAULIC CYLINDER WITH DIFFERENTIAL PISTON
GB2147368A (en) * 1983-09-28 1985-05-09 Presswell Engineering Limited Hydraulic apparatus
US5572918A (en) * 1994-04-25 1996-11-12 Mannesmann Aktiengesellschaft Multi-functional valve

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