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GB1366988A - Piston pump - Google Patents

Piston pump

Info

Publication number
GB1366988A
GB1366988A GB719372A GB719372A GB1366988A GB 1366988 A GB1366988 A GB 1366988A GB 719372 A GB719372 A GB 719372A GB 719372 A GB719372 A GB 719372A GB 1366988 A GB1366988 A GB 1366988A
Authority
GB
United Kingdom
Prior art keywords
piston
diameter
mould
oversize
cylinder
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
GB719372A
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.)
Rockwell Collins Deutschland GmbH
Original Assignee
Teldix GmbH
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 Teldix GmbH filed Critical Teldix GmbH
Publication of GB1366988A publication Critical patent/GB1366988A/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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
    • F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
    • 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
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/14—Pistons, piston-rods or piston-rod connections
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J1/00—Pistons; Trunk pistons; Plungers
    • F16J1/005—Pistons; Trunk pistons; Plungers obtained by assembling several pieces
    • F16J1/006—Pistons; Trunk pistons; Plungers obtained by assembling several pieces of different materials
    • F16J1/008—Pistons; Trunk pistons; Plungers obtained by assembling several pieces of different materials with sealing lips
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2225/00—Synthetic polymers, e.g. plastics; Rubber
    • F05C2225/04—PTFE [PolyTetraFluorEthylene]

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
  • Details Of Reciprocating Pumps (AREA)

Abstract

1366988 Pistons TELDIX GmbH 16 Feb 1972 [17 Feb 1971] 7193/72 Heading F2T A piston pump includes a plastics material piston 3 having a sealing lip 6 of slightly greater diameter than the cylinder bore 1, the piston being formed initially with a relatively large oversize, aged in a mould of essentially the same diameter as the cylinder, and then cooled outside the mould. The piston 3 may reciprocate at 6000 cycles/minute typically with a stroke of 2 mm. and a diameter of 8 mm., generating a pressure of about 200 kg./cm.<SP>2</SP>, and may be of polytetrafluoroethylene, possible glass fibre-reinforced, with a metal cap 11 screwed to a stud 10 for guidance. The piston 3 may be formed by moulding with an initial lip diameter oversize of 0À3 mm., followed by heating for an hour at 130‹ C. while pressed into a cylinder mould having the same diameter as the intended cylinder bore 1, resulting in a final oversize of 0À1 mm.
GB719372A 1971-02-17 1972-02-16 Piston pump Expired GB1366988A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19717105899U DE7105899U (en) 1971-02-17 1971-02-17 HIGH PRESSURE PISTON PUMP

Publications (1)

Publication Number Publication Date
GB1366988A true GB1366988A (en) 1974-09-18

Family

ID=6619044

Family Applications (1)

Application Number Title Priority Date Filing Date
GB719372A Expired GB1366988A (en) 1971-02-17 1972-02-16 Piston pump

Country Status (2)

Country Link
DE (1) DE7105899U (en)
GB (1) GB1366988A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2415246A1 (en) * 1978-01-23 1979-08-17 Fiat Ricerche PLASTIC PISTON FOR THE CONTROL OF A DISC BRAKE AND ITS MANUFACTURING PROCESS
EP0688952A1 (en) * 1994-06-18 1995-12-27 Alfred Kärcher GmbH & Co. High pressure cleaning device
WO1999006696A1 (en) * 1997-07-30 1999-02-11 Robert Bosch Gmbh Piston pump
EP2420675A1 (en) * 2007-08-24 2012-02-22 BWI Company Limited S.A. Sleeveless plastic piston pumps

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2415246A1 (en) * 1978-01-23 1979-08-17 Fiat Ricerche PLASTIC PISTON FOR THE CONTROL OF A DISC BRAKE AND ITS MANUFACTURING PROCESS
EP0688952A1 (en) * 1994-06-18 1995-12-27 Alfred Kärcher GmbH & Co. High pressure cleaning device
WO1999006696A1 (en) * 1997-07-30 1999-02-11 Robert Bosch Gmbh Piston pump
EP2420675A1 (en) * 2007-08-24 2012-02-22 BWI Company Limited S.A. Sleeveless plastic piston pumps

Also Published As

Publication number Publication date
DE7105899U (en) 1971-07-01

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee