GB2024933A
Expired / Lapsed
GB
⏱️ 0.0 years remaining
Fuel pressure regulator for a fuel injection system of an internal combustionengine
Assignee: Nissan Motor Co Ltd
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Filing: 1979-05-24
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Granted: —
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Expires: 1999-05-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
GB
Data Source
google_patents
Last Synchronized
2026-10-30 16:55
CPC Classifications
F; F02; F02M; F02M55/00; F02M55/04; F02M69/00; F02M69/16; F02M69/18; F02M69/20; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559; Y10T137/2574; Y10T137/2605; Y10T137/2642; Y10T137/2645; Y10T137/7722; Y10T137/7781; Y10T137/7835; Y10T137/7836
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
170 words
A fuel pressure regulator for use in a fuel injection system of a petrol fuelled internal 25 combustion engine, said fuel pressure regulator comprising: a fuel distributor pipe defining therein a fuel chamber, having a fuel inlet through which the fuel chamber communicates with a fuel source, 30 and a plurality of fuel outlets through which the fuel chamber communicates with fuel injectors; a casing securely connected to said fuel distributor pipe to define therein a vacuum chamber which is communicated with an intake 35 passageway of the engine; a diaphram member secured at a section where said distributor pipe and said casing is connected, to separate said fuel chamber and said vacuum chamber, said diaphragm member being provided 40 with a valve member; and a fuel discharge nozzle through which the fuel in said fuel chamber is dischargeable, said nozzle being disposed in said fuel chamber and closable with said valve member to prevent the fuel in said 45 fuel chamber from being discharged "out of said fuel chamber.
Claim 2
Dependent Claim
170 words
A fuel pressure regulator for use in a fuel injection system of a petrol fuelled internal 25 combustion engine, said fuel pressure regulator comprising: a fuel distributor pipe defining therein a fuel chamber, having a fuel inlet through which the fuel chamber communicates with a fuel source, 30 and a plurality of fuel outlets through which the fuel chamber communicates with fuel injectors; a casing securely connected to said fuel distributor pipe to define therein a vacuum chamber which is communicated with an intake 35 passageway of the engine; a diaphram member secured at a section where said distributor pipe and said casing is connected, to separate said fuel chamber and said vacuum chamber, said diaphragm member being provided 40 with a valve member; and a fuel discharge nozzle through which the fuel in said fuel chamber is dischargeable, said nozzle being disposed in said fuel chamber and closable with said valve member to prevent the fuel in said 45 fuel chamber from being discharged "out of said fuel chamber.
Claim 3
Dependent Claim
35 words
A fuel pressure regulator as claimed in claim 1, further comprising a spring member disposed in said vacuum chamber to bias said diaphragm 50 member so that said valve member closes said fuel discharge nozzle.
Claim 4
Dependent Claim
76 words
Afuel pressure regulator as claimed in claim 2, in which said fuel distributor pipe is straight elongate and formed at its central portion with a 55 first flange portion defining an opening, wherein said casing is formed with a second flange portion which is secured to said first flange portion, positioning said diaphragn member between said first and second flange portions so that said 60 diaphragm member closes the opening defined by said first flange portion.
Claim 5
Dependent Claim
44 words
Afuel pressure regulator as claimed in claim 3, in which said fuel discharge nozzle is secured through the wall of said fuel distributor pipe and 65 such located so that the tip thereof is contactable with said valve member so as to be closable.
Claim 6
Dependent Claim
32 words
Afuel pressure regulator as claimed in claim 2, further comprising damper means for absorbing the fuel pressure pulsation applied to the fuel in 70 said fuel chamber of said fuel distributor pipe.
Claim 7
Dependent Claim
55 words
Afuel pressure regulator as claimed in claim 5, in which said damper means includes first and second dampers which are provided at both open, end portions of said straight elongate fuel 75 distributor pipe, each of said damper means including a diaphragm member secured to close the open end portion of said fuel distributor pipe.
Claim 8
Dependent Claim
72 words
Afuel pressure regulator as claimed in claim 6, in which each damper includes a casing secured 80 to the end portion of said fuel distributor pipe to form therein a chamber defined by said diaphragm member of said damper, said casing being formed with an orifice through which said chamber communicates with atmosphere, and a spring 85 disposed in said chamber of said damper to bias said diaphragm member of said damper.
Claim 9
Dependent Claim
54 words
Afuel pressure regulator constructed and arranged substantially as described herein with reference to Fig. 2, or Fig. 3 of the accompanying 90 drawings. Printed for Her Majesty's Stationery Office by the Courier Press, Leamington Spa, 1980. Published by the Patent Office, 25 Southampton Buildings, London, WC2A 1 AY, from which copies may be obtained.
Claim 10
Dependent Claim
54 words
Afuel pressure regulator constructed and arranged substantially as described herein with reference to Fig. 2, or Fig. 3 of the accompanying 90 drawings. Printed for Her Majesty's Stationery Office by the Courier Press, Leamington Spa, 1980. Published by the Patent Office, 25 Southampton Buildings, London, WC2A 1 AY, from which copies may be obtained.
References Cited (Backward Citations)
No citation records indexed.
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