Patent US4442945A successfully refreshed from Google Patents.
US4909221A
Expired / Lapsed
US
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Internal combustion engine fuel injection system
Assignee: Motors Liquidation Co
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Filing: 1988-11-15
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Granted: 1990-03-20
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Expires: 2008-11-15
Abstract
Abstract In an internal combustion engine fuel injection system, an injection valve has a connection to a fuel delivery pipe and a connection to the engine oriented at a right angle.
Inventors
- 👤 Edgar Heuser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:43
CPC Classifications
F; F02; F02M; F02M61/00; F02M61/14; F02M61/145; F02M69/00; F02M69/04; F02M69/042; F02M69/044; F02M69/46; F02M69/462; F02M69/465
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
109 words
An internal combustion engine fuel injection system having an injection valve which can be inserted by an injection connecting socket in sealing relationship in an opening of an engine, and by a supply connecting socket in sealing relationship in an opening in a fuel delivery pipe, characterized in that the injection connecting socket is aligned at least approximately at right angles to the supply connecting socket and the injection connecting socket pivots with respect to the axis of the engine opening to enable movement of the supply connecting socket in and out of the fuel delivery pipe opening when the injection connecting socket is inserted in the engine opening.
Claim 2
Dependent Claim
109 words
An internal combustion engine fuel injection system having an injection valve which can be inserted by an injection connecting socket in sealing relationship in an opening of an engine, and by a supply connecting socket in sealing relationship in an opening in a fuel delivery pipe, characterized in that the injection connecting socket is aligned at least approximately at right angles to the supply connecting socket and the injection connecting socket pivots with respect to the axis of the engine opening to enable movement of the supply connecting socket in and out of the fuel delivery pipe opening when the injection connecting socket is inserted in the engine opening.
Claim 3
Dependent Claim
108 words
An injection valve, for an internal combustion engine fuel injection system, which can be inserted by an injection connecting socket in sealing relationship in an opening of an engine, and a supply connecting socket in sealing relationship in an opening in a fuel delivery pipe, characterized in that the injection connecting socket is aligned at least approximately at right angles to the supply connecting socket and the injection connecting socket pivots with respect to the axis of the engine opening to enable movement of the supply connecting socket in and out of the fuel delivery pipe opening when the injection connecting socket is inserted in the engine opening.
Claim 4
Dependent Claim
108 words
An injection valve, for an internal combustion engine fuel injection system, which can be inserted by an injection connecting socket in sealing relationship in an opening of an engine, and a supply connecting socket in sealing relationship in an opening in a fuel delivery pipe, characterized in that the injection connecting socket is aligned at least approximately at right angles to the supply connecting socket and the injection connecting socket pivots with respect to the axis of the engine opening to enable movement of the supply connecting socket in and out of the fuel delivery pipe opening when the injection connecting socket is inserted in the engine opening.
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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) | 1993-03-19 | 1993-09-18 | 1994-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-03-19 | 1997-09-18 | 1998-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-03-19 | 2001-09-18 | 2002-03-20 | $7700.00 | Window Closed / Lapsed |