FR2332469A1 - Pressure operated bypass valve for fuel pump - has tapered toggle washer with two stable positions - Google Patents

Pressure operated bypass valve for fuel pump - has tapered toggle washer with two stable positions

Info

Publication number
FR2332469A1
FR2332469A1 FR7633167A FR7633167A FR2332469A1 FR 2332469 A1 FR2332469 A1 FR 2332469A1 FR 7633167 A FR7633167 A FR 7633167A FR 7633167 A FR7633167 A FR 7633167A FR 2332469 A1 FR2332469 A1 FR 2332469A1
Authority
FR
France
Prior art keywords
washer
tapered
fuel pump
bypass valve
toggle
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
FR7633167A
Other languages
French (fr)
Other versions
FR2332469B3 (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.)
Sulzer AG
Original Assignee
Sulzer AG
Sulzer Freres SA
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 Sulzer AG, Sulzer Freres SA filed Critical Sulzer AG
Publication of FR2332469A1 publication Critical patent/FR2332469A1/en
Application granted granted Critical
Publication of FR2332469B3 publication Critical patent/FR2332469B3/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/14—Safety devices specially adapted for filtration; Devices for indicating clogging
    • B01D35/147—Bypass or safety valves
    • 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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • F16K11/022—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising a deformable member
    • 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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K7/00—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves
    • F16K7/12—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm
    • F16K7/14—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm arranged to be deformed against a flat seat
    • F16K7/17—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm arranged to be deformed against a flat seat the diaphragm being actuated by fluid pressure

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Safety Valves (AREA)
  • Control Of Fluid Pressure (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

A fuel pump with an integral filter (2) has a by-pass which opens when the contaminated filter causes the fuel pressure to raise. The bypass valve has a tapered washer (9) which normally closes the bypass path (6, 7) with its inside and outside edges. When the fuel pressure increases to a certain value, the axial force so produced on the valve ring (9) moves the tapered washer into its second stable position by an axial toggle action. The bypass thus opens and remains open even if the fuel pressure returns to its normal value.
FR7633167A 1975-11-18 1976-11-03 Pressure operated bypass valve for fuel pump - has tapered toggle washer with two stable positions Granted FR2332469A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1490275A CH606878A5 (en) 1975-11-18 1975-11-18

Publications (2)

Publication Number Publication Date
FR2332469A1 true FR2332469A1 (en) 1977-06-17
FR2332469B3 FR2332469B3 (en) 1979-07-13

Family

ID=4404689

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7633167A Granted FR2332469A1 (en) 1975-11-18 1976-11-03 Pressure operated bypass valve for fuel pump - has tapered toggle washer with two stable positions

Country Status (4)

Country Link
CH (1) CH606878A5 (en)
DE (1) DE2552406C3 (en)
FR (1) FR2332469A1 (en)
IL (1) IL50483A0 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4422945C2 (en) * 1994-06-30 2003-07-10 Bosch Gmbh Robert Valve
DE19522806C2 (en) * 1995-06-23 1997-06-12 Karlsruhe Forschzent Method of manufacturing a micro diaphragm valve
DE19638965C1 (en) * 1996-09-12 1998-05-07 Mannesmann Ag Diaphragm valve for checking fluid flow operated by fluids under pressure

Also Published As

Publication number Publication date
DE2552406C3 (en) 1978-07-13
DE2552406A1 (en) 1977-05-26
FR2332469B3 (en) 1979-07-13
DE2552406B2 (en) 1977-12-01
IL50483A0 (en) 1976-11-30
CH606878A5 (en) 1978-11-15

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