GB1184737A - Diaphragms for Fuel Pumps - Google Patents

Diaphragms for Fuel Pumps

Info

Publication number
GB1184737A
GB1184737A GB972367A GB972367A GB1184737A GB 1184737 A GB1184737 A GB 1184737A GB 972367 A GB972367 A GB 972367A GB 972367 A GB972367 A GB 972367A GB 1184737 A GB1184737 A GB 1184737A
Authority
GB
United Kingdom
Prior art keywords
coating
brumme
swellable
butadiene
copolymer
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
GB972367A
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.)
EFFBE WERK FRITZ BRUMME KOMMAN
IRENE LOTT
Original Assignee
EFFBE WERK FRITZ BRUMME KOMMAN
IRENE LOTT
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 EFFBE WERK FRITZ BRUMME KOMMAN, IRENE LOTT filed Critical EFFBE WERK FRITZ BRUMME KOMMAN
Publication of GB1184737A publication Critical patent/GB1184737A/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
    • F04B43/0009—Special features
    • F04B43/0054—Special features particularities of the flexible members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M1/00—Carburettors with means for facilitating engine's starting or its idling below operational temperatures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M2700/00—Supplying, feeding or preparing air, fuel, fuel air mixtures or auxiliary fluids for a combustion engine; Use of exhaust gas; Compressors for piston engines
    • F02M2700/43—Arrangements for supplying air, fuel or auxiliary fluids to a combustion space of mixture compressing engines working with liquid fuel
    • F02M2700/4302—Arrangements for supplying air, fuel or auxiliary fluids to a combustion space of mixture compressing engines working with liquid fuel whereby air and fuel are sucked into the mixture conduit
    • F02M2700/438—Supply of liquid to a carburettor reservoir with limitation of the liquid level; Aerating devices; Mounting of fuel filters
    • F02M2700/4388—Supply of liquid to a carburettor reservoir with limitation of the liquid level; Aerating devices; Mounting of fuel filters with fuel displacement by a pump
    • F02M2700/439—Supply of liquid to a carburettor reservoir with limitation of the liquid level; Aerating devices; Mounting of fuel filters with fuel displacement by a pump the pump being a membrane pump

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Reciprocating Pumps (AREA)
  • Diaphragms And Bellows (AREA)

Abstract

1,184,737. Coated fabric. F. BRUMME, R. BRUMME and I. LOTT [trading as EFFBEWERK FRITZ BRUMME K.G.]. 1 March, 1967 [10 March, 1966], No. 9723/67. Heading B2E. [Also. in Division Fl] A fuel pump diaphragm comprises at least one layer of fabric eg a polyamide fabric, carrying on each face a coating of elastic material, both coatings being swellable in the presence of engine fuel and the second coating before more swellable e.g. 1.5 times more swellable than the first to an extent such as to provide a substantial reduction of the tendency for the second coating to dry out by evaporation when the diaphragm is used in a fuel pump with the first coating in contact with engine fuel. The second coating may have a smaller diffusion resistance for engine fuel than the first coating. The second coating may be formed of the same material as the first coating but contains an additive adapted to give it the required difference of properties. The first coating may be formed of a copolymer of butadiene and acrylonitrile and the second coating of the copolymer of butadiene and acrylonitrile and a copolymer of butadiene and styrene; or the first coating may be based on polychloroprene and the second on a blend of polychloroprene and natural caoutchouc. The two coatings may be differently coloured. The diaphragm may be used under conditions in which the amount of swelling of the second coating is substantially equal to the amount of swelling of the first coating.
GB972367A 1966-03-10 1967-03-01 Diaphragms for Fuel Pumps Expired GB1184737A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEE0031200 1966-03-10

Publications (1)

Publication Number Publication Date
GB1184737A true GB1184737A (en) 1970-03-18

Family

ID=7074917

Family Applications (1)

Application Number Title Priority Date Filing Date
GB972367A Expired GB1184737A (en) 1966-03-10 1967-03-01 Diaphragms for Fuel Pumps

Country Status (3)

Country Link
DE (1) DE1528417C3 (en)
FR (1) FR1511408A (en)
GB (1) GB1184737A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4306584A (en) * 1978-12-01 1981-12-22 Dragerwerk Aktiengesellschaft Diaphragm for a breath-controlled dosaging valve

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3219530A1 (en) * 1982-05-25 1983-12-01 Alfred Teves Gmbh, 6000 Frankfurt Membrane for accumulators
DE4130529A1 (en) * 1991-09-13 1993-03-18 Schaeffler Waelzlager Kg Hydraulic tappet with cup-shaped housing - has sealing membrane in two layers between housing and clearance compensating unit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4306584A (en) * 1978-12-01 1981-12-22 Dragerwerk Aktiengesellschaft Diaphragm for a breath-controlled dosaging valve

Also Published As

Publication number Publication date
DE1528417B2 (en) 1973-08-23
DE1528417A1 (en) 1970-11-26
FR1511408A (en) 1968-01-26
DE1528417C3 (en) 1974-03-14

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee