US4601275A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel rail
Assignee: Motors Liquidation Co
•
Filing: 1982-08-23
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Granted: 1986-07-22
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Expires: 2002-08-23
Abstract
Abstract A fuel rail containing injectors for delivering fuel to an engine has a large passage supplying fuel to the injectors and a small fuel return passage. The injectors are received in sockets each of which has a restricted vent extending to the return passage. The fuel rail is formed by molding or extruding a body with the supply and return passages, and a single circular plug at one end provides a closure for the associated ends of both the supply and return passages.
Inventors
- 👤 Louis H. Weinand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 01:06
CPC Classifications
F; F02; F02M; F02M69/00; F02M69/04; F02M69/042; F02M69/044; F02M69/46; F02M69/462; F02M69/465; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/877; Y10T137/87877
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
134 words
A fuel rail for an engine, said rail comprising an elongated body having a plurality of axially spaced transversely extending fuel injector sockets and a pair of transversely spaced axially extending fuel passages, said fuel passages being interconnected at one end of said body for fuel flow through said passages in series, one of said passages intersecting said sockets for supplying fuel to said sockets, each of said sockets being adapted to receive a fuel injector suitable for delivering fuel from its socket to the engine, and wherein at least one end of said body has a circular recess intersected by and encompassing the associated ends of said fuel passages, and a circular plug is received in and seals said recess to provide a closure for the associated ends of both of said passages.
Claim 2
Dependent Claim
134 words
A fuel rail for an engine, said rail comprising an elongated body having a plurality of axially spaced transversely extending fuel injector sockets and a pair of transversely spaced axially extending fuel passages, said fuel passages being interconnected at one end of said body for fuel flow through said passages in series, one of said passages intersecting said sockets for supplying fuel to said sockets, each of said sockets being adapted to receive a fuel injector suitable for delivering fuel from its socket to the engine, and wherein at least one end of said body has a circular recess intersected by and encompassing the associated ends of said fuel passages, and a circular plug is received in and seals said recess to provide a closure for the associated ends of both of said passages.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-07-21 | 1990-01-20 | 1990-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-07-21 | 1994-01-20 | 1994-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-07-21 | 1998-01-20 | 1998-07-22 | $7700.00 | Window Closed / Lapsed |