US5533485A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel injection device for internal combustion engines
Assignee: Robert Bosch GmbH
•
Filing: 1995-06-02
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Granted: 1996-07-09
•
Expires: 2015-06-02
Abstract
Abstract A fuel injection device for internal combustion engines with a high-pressure fuel pump which pumps fuel out of a low-pressure space into a high-pressure collecting space which is connected by high-pressure lines to injection valves projecting into the combustion space of the internal combustion engines to be supplied, wherein the high-pressure collecting space is formed by a distributor rail resistant to high pressures which is integrated into the wall of a cylinder-head cover arranged on the internal combustion engine.
Inventors
- 👤 Bernhard Bronkal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:42
CPC Classifications
F; F02; F02F; F02F7/00; F02F7/006; F02M; F02M63/00; F02M55/00; F02M55/02; F02M55/025; F02M69/00; F02M69/46; F02M69/462; F02M69/465; F02M2200/00; F02M2200/18; F02M2200/185
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
88 words
A fuel injection device for internal combustion engines comprising a high-pressure fuel pump (1) which pumps fuel out of a low-pressure space (5) into a high-pressure collecting space, said high-pressure collecting space is connected by high-pressure lines (11) to injection valves (13) that project into a combustion space of the internal combustion engine to be supplied, said high-pressure collecting space is formed by a distributor rail (9) resistant to high pressures which is integrated into a wall of a cylinder-head cover (23) arranged on the internal combustion engine.
Claim 2
Dependent Claim
88 words
A fuel injection device for internal combustion engines comprising a high-pressure fuel pump (1) which pumps fuel out of a low-pressure space (5) into a high-pressure collecting space, said high-pressure collecting space is connected by high-pressure lines (11) to injection valves (13) that project into a combustion space of the internal combustion engine to be supplied, said high-pressure collecting space is formed by a distributor rail (9) resistant to high pressures which is integrated into a wall of a cylinder-head cover (23) arranged on the internal combustion engine.
Claim 3
Dependent Claim
46 words
The fuel injection device as claimed in claim 1, wherein the distributor rail (9), which is manufactured from a material resistant to high pressures, preferably steel, is mounted in the wall of the cylinder-head cover (23) but projects from one side of the internal combustion engine.
Claim 4
Dependent Claim
18 words
The fuel injection device as claimed in claim 1, wherein the distributor rail (9) is of tubular design.
Claim 5
Dependent Claim
18 words
The fuel injection device as claimed in claim 1, wherein the distributor rail (9) has a rectangular profile.
Claim 6
Dependent Claim
27 words
The fuel injection device as claimed in claim 2, wherein the distributor rail (9) is molded into the wall of a cylinder-head cover (23) formed of plastic.
Claim 7
Dependent Claim
27 words
The fuel injection device as claimed in claim 2, wherein the distributor rail (9) is cast into the wall of a cylinder-head cover (23) formed of aluminum.
Claim 8
Dependent Claim
93 words
A fuel injection device for internal combustion engines comprising a high-pressure fuel pump (1) which pumps fuel out of a low-pressure space (5) into a high-pressure collecting space, said high-pressure collecting space is connected by high-pressure lines (11) to injection valves (13) that project into a combustion space of the internal combustion engine to be supplied, said high-pressure collecting space is formed by a distributor rail (9) formed by a material resistant to high pressures which is arranged completely within a wall of a cylinder-head cover (23) arranged on the internal combustion engine.
Claim 9
Dependent Claim
93 words
A fuel injection device for internal combustion engines comprising a high-pressure fuel pump (1) which pumps fuel out of a low-pressure space (5) into a high-pressure collecting space, said high-pressure collecting space is connected by high-pressure lines (11) to injection valves (13) that project into a combustion space of the internal combustion engine to be supplied, said high-pressure collecting space is formed by a distributor rail (9) formed by a material resistant to high pressures which is arranged completely within a wall of a cylinder-head cover (23) arranged on the internal combustion engine.
Claim 10
Dependent Claim
27 words
The fuel injection device as claimed in claim 7, wherein the distributor rail (9) is molded into the wall of a cylinder-head cover (23) formed of plastic.
Claim 11
Dependent Claim
27 words
The fuel injection device as claimed in claim 7, wherein the distributor rail (9) is cast into the wall of a cylinder-head cover (23) formed of aluminum.
Claim 12
Dependent Claim
29 words
The fuel injection device as claimed in claim 7, wherein the distributor rail (9) is inserted into a receiving opening provided in the wall of the cylinder-head cover (23).
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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) | 1999-07-09 | 2000-01-08 | 2000-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-07-09 | 2004-01-08 | 2004-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-07-09 | 2008-01-08 | 2008-07-09 | $7700.00 | Window Closed / Lapsed |