US4913119A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel delivery rail assembly
Assignee: USUI KOKUSAI SANGYO KAISHA Ltd 131-2 NAGASAWA SHIMIZU-CHO SUNTO-GUN SHIZUOKA JAPAN A JAPANESE BODY CORPORATE
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Filing: 1989-08-01
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Granted: 1990-04-03
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Expires: 2009-08-01
Abstract
Abstract A fuel delivery rail assembly for supplying fuel to a plurality of fuel injectors in an engine is provided. The assembly comprises a plurality of sockets made from plastic materials and a plurality of rail sections made by metallic materials extending from the sockets. Each of the sockets includes a tubular body and a pair of extension pipes extending outwardly from the body toward opposite directions. Interior surfaces of the tubular body are so formed as to receive a fuel injector. At least one end of each rail section is overlapped above or below the extension pipe with a seal member therebetween while being combined by an appropriate connection.
Inventors
- 👤 Masayoshi Usui
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:17
CPC Classifications
F; F02; F02M; F02M55/00; F02M55/02; F02M69/00; F02M69/46; F02M69/462; F02M69/465; F02M61/00; F02M61/14; F02M61/145
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
101 words
A fuel delivery rail assembly for an internal combustion engine comprising; a plurality of sockets made from plastic materials, a plurality of rail sections made from metallic materials extending from said sockets, each of said sockets having a tubular body and a pair of extension pipes extending outwardly from the body toward opposite directions, interior surfaces of said tubular body being so formed as to receive a fuel injector, at least one end of each rail section being overlapped above or below said extension pipe with a seal member there-between, and means for combining said rail sections and said extension pipes.
Claim 2
Dependent Claim
101 words
A fuel delivery rail assembly for an internal combustion engine comprising; a plurality of sockets made from plastic materials, a plurality of rail sections made from metallic materials extending from said sockets, each of said sockets having a tubular body and a pair of extension pipes extending outwardly from the body toward opposite directions, interior surfaces of said tubular body being so formed as to receive a fuel injector, at least one end of each rail section being overlapped above or below said extension pipe with a seal member there-between, and means for combining said rail sections and said extension pipes.
Claim 3
Dependent Claim
32 words
A fuel delivery rail assembly as claimed in claim 1, further comprising a clamp ring located on each overlapped portion for holding said rail section and said extension pipe in its inside.
Claim 4
Dependent Claim
31 words
A fuel delivery rail assembly as claimed in claim 1, wherein each of said sockets is made from a glass-fiber reinforced polyamide resin and its surface is plated with nickel coating.
References Cited (Backward Citations)
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US4334512A
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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) | 1993-04-02 | 1993-10-02 | 1994-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-04-02 | 1997-10-02 | 1998-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-04-02 | 2001-10-02 | 2002-04-03 | $7700.00 | Window Closed / Lapsed |