EP0261855A1
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EP
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Fuel injection system component
Assignee: Ford-Werke GmbH
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Filing: 1987-09-15
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Granted: —
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Expires: 2007-09-15
Abstract
Abstract In order to enhance fuel integrity, the fuel injectors 18 together with the associated fuel feed and return passages 22 and 24 are formed in a single block 10 which also includes the air feed passages 16 to the engine cylinders. The incorporation of all these elements into a single block means that the block can be pre-assembled and tested for fuel tightness before being built in to an engine.
Inventors
- 👤 John Turner
- 👤 Peter Oliff
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-06 13:48
CPC Classifications
F; F02; F02M; F02M69/00; F02M69/04; F02M69/042; F02M69/044; F02M69/46; F02M69/462; F02M69/465
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
87 words
A fuel injection system component adapted to interface at one side with an engine cylinder head (12) and at another side with an air intake manifold (14), characterised in that the component comprises a block (10) in which a plurality of air (16) passages extend from said one side to said another side, the block (10) including at least one passage for each cylinder of the engine, a plurality of fuel injector seats (20), and fuel feed and return passages (22,24) communicating with the injector seats (20).
Claim 2
Dependent Claim
87 words
A fuel injection system component adapted to interface at one side with an engine cylinder head (12) and at another side with an air intake manifold (14), characterised in that the component comprises a block (10) in which a plurality of air (16) passages extend from said one side to said another side, the block (10) including at least one passage for each cylinder of the engine, a plurality of fuel injector seats (20), and fuel feed and return passages (22,24) communicating with the injector seats (20).
Claim 3
Dependent Claim
21 words
A fuel injection system component as claimed in Claim 1, wherein the injector seats (20) are adapted to receive tip-feed injectors.
Claim 4
Dependent Claim
17 words
A fuel injection system component as claimed in Claim 2, wherein each seat (20) contains an injector.
Claim 5
Dependent Claim
25 words
A fuel injection system component as claimed in any preceding claim including a pressure regulator for controlling the pressure in the fuel return passage (24)
Claim 6
Dependent Claim
18 words
A fuel injection system component as claimed in Claim 4, wherein the pressure regulator is a bolt-on unit.
Claim 7
Dependent Claim
23 words
A fuel injection system component as claimed in Claim 4, wherein the pressure regulator has a regulator body formed integrally in the block.
Claim 8
Dependent Claim
43 words
A fuel injection system component as claimed in any preceding claim, for use in an engine installation where the air intake manifold has more than one tract, wherein a port deactivation valve (30) is incorporated into the air passages (16) through the component.
Claim 9
Dependent Claim
45 words
A fuel injection system component as claimed in any preceding claim, wherein an idle air supply duct (34) is provided in the block (10) to supply idle air to the engine independently of the air supply route employed when the engine is running under load.
Claim 10
Dependent Claim
22 words
A fuel injection system component as claimed in Claim 8, wherein the idle air is supplied through an idle speed motor (36).
Claim 11
Dependent Claim
23 words
A fuel injection system component as claimed in Claim 9, wherein the motor (36) has a housing formed integrally in the block (10)
Claim 12
Dependent Claim
22 words
A fuel injection system component as claimed in any preceding claim, wherein the block (10) also includes a crankcase air inlet (32).
References Cited (Backward Citations)
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