FR2357753A1 - Liq. gas pump piston rod protector - has metal or plastic bellows fixed to piston rod and pump housing to exclude ice - Google Patents

Liq. gas pump piston rod protector - has metal or plastic bellows fixed to piston rod and pump housing to exclude ice

Info

Publication number
FR2357753A1
FR2357753A1 FR7720688A FR7720688A FR2357753A1 FR 2357753 A1 FR2357753 A1 FR 2357753A1 FR 7720688 A FR7720688 A FR 7720688A FR 7720688 A FR7720688 A FR 7720688A FR 2357753 A1 FR2357753 A1 FR 2357753A1
Authority
FR
France
Prior art keywords
piston rod
metal
liq
pump housing
plastic bellows
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.)
Granted
Application number
FR7720688A
Other languages
French (fr)
Other versions
FR2357753B3 (en
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.)
Messer Griesheim GmbH
Original Assignee
Messer Griesheim 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 Messer Griesheim GmbH filed Critical Messer Griesheim GmbH
Publication of FR2357753A1 publication Critical patent/FR2357753A1/en
Application granted granted Critical
Publication of FR2357753B3 publication Critical patent/FR2357753B3/fr
Granted 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
    • F16J15/50—Sealings between relatively-movable members, by means of a sealing without relatively-moving surfaces, e.g. fluid-tight sealings for transmitting motion through a wall
    • F16J15/52—Sealings between relatively-movable members, by means of a sealing without relatively-moving surfaces, e.g. fluid-tight sealings for transmitting motion through a wall by means of sealing bellows or diaphragms
    • 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
    • F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
    • F04B53/162—Adaptations of cylinders
    • F04B53/164—Stoffing boxes

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Reciprocating Pumps (AREA)
  • Diaphragms And Bellows (AREA)

Abstract

A metal or plastic bellows surrounds the piston rod and has its ends secured gas-tight to the free end of the piston rod and to the pump housing. The space enclosed by the bellow may be connected to a buffer container. This space may be connected to a press. relief valve. The bellows are pref. of PTFE ethylene. The arrangement protects the piston rod of a piston pump from dirt or icing-up, partic. when handling liquefied gas.
FR7720688A 1976-07-05 1977-07-05 Liq. gas pump piston rod protector - has metal or plastic bellows fixed to piston rod and pump housing to exclude ice Granted FR2357753A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19762630123 DE2630123A1 (en) 1976-07-05 1976-07-05 DEVICE FOR PROTECTING THE PISTON RODS OF PISTON PUMPS

Publications (2)

Publication Number Publication Date
FR2357753A1 true FR2357753A1 (en) 1978-02-03
FR2357753B3 FR2357753B3 (en) 1980-04-11

Family

ID=5982218

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7720688A Granted FR2357753A1 (en) 1976-07-05 1977-07-05 Liq. gas pump piston rod protector - has metal or plastic bellows fixed to piston rod and pump housing to exclude ice

Country Status (6)

Country Link
AT (1) AT349903B (en)
DE (1) DE2630123A1 (en)
ES (1) ES460174A1 (en)
FR (1) FR2357753A1 (en)
NL (1) NL7707042A (en)
ZA (1) ZA774053B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3601164A1 (en) * 1986-01-17 1987-07-23 Festo Kg WORK CYLINDER ARRANGEMENT

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE449508B (en) * 1982-03-09 1987-05-04 Lkb Produkter Ab DEVICE FOR A PUMP PUMP FOR PUMPING A PUMP MEDIUM
AT1623U1 (en) * 1995-05-19 1997-08-25 Avl Verbrennungskraft Messtech INJECTION SYSTEM FOR AN INTERNAL COMBUSTION ENGINE OPERATING LIQUID GAS AS A FUEL OR FUEL COMPONENT
DE102011089967A1 (en) * 2011-12-27 2013-06-27 Robert Bosch Gmbh High-pressure fuel pump for a fuel injection system
DE102012102700A1 (en) * 2012-03-29 2013-10-02 Elringklinger Ag sealing arrangement

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3601164A1 (en) * 1986-01-17 1987-07-23 Festo Kg WORK CYLINDER ARRANGEMENT
FR2593249A1 (en) * 1986-01-17 1987-07-24 Festo Kg CURTAIN COMPRISING A CYLINDER AND A ROD

Also Published As

Publication number Publication date
NL7707042A (en) 1978-01-09
ZA774053B (en) 1978-05-30
DE2630123A1 (en) 1978-01-12
FR2357753B3 (en) 1980-04-11
ATA415677A (en) 1978-09-15
AT349903B (en) 1979-05-10
ES460174A1 (en) 1978-05-16

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