GB841275A - Piston type suction booster pump - Google Patents

Piston type suction booster pump

Info

Publication number
GB841275A
GB841275A GB25161/58A GB2516158A GB841275A GB 841275 A GB841275 A GB 841275A GB 25161/58 A GB25161/58 A GB 25161/58A GB 2516158 A GB2516158 A GB 2516158A GB 841275 A GB841275 A GB 841275A
Authority
GB
United Kingdom
Prior art keywords
groove
piston
cylinder
diameter
ring
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
GB25161/58A
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.)
ACF Industries Inc
Original Assignee
ACF Industries Inc
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 ACF Industries Inc filed Critical ACF Industries Inc
Publication of GB841275A publication Critical patent/GB841275A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms

Abstract

841,275. Piston packings. A.C.F. INDUSTRIES Inc. Aug. 6, 1958 [June 30, 1958], No. 25161/58. Class 122 (1). [Also in Group XXVIII] A resilient packing-ring 69 located in a groove 68 formed in a piston 53 which operates in the cylinder 39 of a vacuum booster pump (see Group XXVIII), is arranged to have a sliding sealing fit in the cylinder and against the bottom of the groove and be free to slide in the groove relative to the piston. The packing-ring, which may be of oil-resistant synthetic rubber, is made from an extruded tube having a bore slightly less than the diameter of the bottom of the groove 68 and an outside diameter greater than the diameter of the cylinder. The tube is mounted on a mandrel having a diameter equal to the groove diameter so that the tube is expanded and grips the mandrel and is then ground or otherwise machined over its length in order to produce the diameter required for the desired sealing fit in the cylinder; the tube is then cut in a lathe into individual rings having a thickness less than the width of the groove and the rings removed from the mandrel. When a ring 69 is assembled in the piston groove it again takes up the required dimensions; if desired, a groove 72, Fig. 6, may be formed in the sealing surface of the ring in contact with the cylinder. The piston is formed from pressedsteel plates 55, 57 so shaped as to define between them the groove 68; the two rings are clamped by a nut (Fig. 2, not shown) against a shoulder formed on the piston-rod, a backing- plate 67 being positioned between the plate 57 and the shoulder.
GB25161/58A 1958-06-30 1958-08-06 Piston type suction booster pump Expired GB841275A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US841275XA 1958-06-30 1958-06-30

Publications (1)

Publication Number Publication Date
GB841275A true GB841275A (en) 1960-07-13

Family

ID=22183042

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25161/58A Expired GB841275A (en) 1958-06-30 1958-08-06 Piston type suction booster pump

Country Status (1)

Country Link
GB (1) GB841275A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0066407A2 (en) * 1981-05-20 1982-12-08 Wabco Automotive U.K. Limited Reciprocating exhauster
US4525128A (en) * 1983-06-09 1985-06-25 Clayton Dewandre Co., Ltd. Reciprocating exhauster

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0066407A2 (en) * 1981-05-20 1982-12-08 Wabco Automotive U.K. Limited Reciprocating exhauster
EP0066407A3 (en) * 1981-05-20 1983-09-21 Clayton Dewandre Company Limited Reciprocating exhauster
US4525128A (en) * 1983-06-09 1985-06-25 Clayton Dewandre Co., Ltd. Reciprocating exhauster

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