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US3857573A
Expired / Lapsed
US
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Mounting arrangements for injectors for i.c. engine fuel injection systems
Assignee: Lucas Electrical Co Ltd
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Filing: 1973-07-30
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Granted: 1974-12-31
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Expires: 1993-07-30
Abstract
Abstract A mounting arrangement for a fuel injector on an engine intake manifold includes a sealing ring engaged against a shoulder in a bore in the manifold. An abutment plate is mounted by a bolt or bolts on the manifold and a spring is disposed between the abutment plate and a flexible ring disposed in a groove in the injector. The flexible ring is slidably received in a further bore in the manifold said further bore being co-axial with the first-mentioned bore. The novel mounting arrangement permits a good seal to be obtained between the injector and the manifold without the necessity of employing close tolerance machining.
Inventors
- 👤 M Pugh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:17
CPC Classifications
F; F02; F02M; F02M61/00; F02M61/14; F02M61/145; F16; F16J; F16J15/00; F16J15/02; F16J15/06; F16J15/10; F16J15/104; F16J15/106; F02M2200/00; F02M2200/85; F02M2200/858
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
60 words
A mounting arrangement for an injector on an engine intake manifold, said mounting arrangement comprising a sealing ring in a bore in said manifold, an abutment mounted on said manifold and a spring acting between said abutment and said injector through the intermediary of a flexible means so as to urge said injector into sealing engagement with said sealing ring.
Claim 2
Dependent Claim
60 words
A mounting arrangement for an injector on an engine intake manifold, said mounting arrangement comprising a sealing ring in a bore in said manifold, an abutment mounted on said manifold and a spring acting between said abutment and said injector through the intermediary of a flexible means so as to urge said injector into sealing engagement with said sealing ring.
Claim 3
Dependent Claim
14 words
The arrangement according to claim 1, wherein said flexible means is a flexible ring.
Claim 4
Dependent Claim
18 words
The arrangement according to claim 2, wherein said flexible ring is carried in a groove in said injector.
Claim 5
Dependent Claim
29 words
The arrangement according to claim 3, wherein said flexible ring is slidably received in a further bore in said manifold, said further bore being co-axial with the first-mentioned bore.
Claim 6
Dependent Claim
21 words
The arrangement according to claim 1, wherein said abutment is formed as a plate which is detachably secured to said manifold.
References Cited (Backward Citations)
US2893365A
Cited
US3776209A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-30 | 1978-07-01 | 1978-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-30 | 1982-07-01 | 1982-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-30 | 1986-07-01 | 1986-12-31 | $7700.00 | Window Closed / Lapsed |