US6119660A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compression-ignition internal combustion engine having combustion heater
Assignee: Toyota Motor Corp
•
Filing: 1999-03-30
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Granted: 2000-09-19
•
Expires: 2019-03-30
Abstract
Abstract In the compression-ignition internal combustion engine having the combustion heater for introducing combustion gas into a mainstream pipe constituting the intake system of the engine, a fuel injection timing by a injector of the engine is advanced as an output of the combustion heater is increased.
Inventors
- 👤 Makoto Suzuki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:34
CPC Classifications
F; F02; F02B; F02B29/00; F02M; F02M31/00; F02M31/02; F02M31/04; F02M31/042; F02B3/00; F02B3/06; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
51 words
A compression-ignition internal combustion engine having a combustion heater for introducing a combustion gas into an intake system of the internal combustion engine, characterized in that a fuel injection timing by a fuel injection system of the internal combustion engine is controlled according to an operational state of the combustion heater.
Claim 2
Dependent Claim
51 words
A compression-ignition internal combustion engine having a combustion heater for introducing a combustion gas into an intake system of the internal combustion engine, characterized in that a fuel injection timing by a fuel injection system of the internal combustion engine is controlled according to an operational state of the combustion heater.
Claim 3
Dependent Claim
29 words
A compression-ignition internal combustion engine having a combustion heater according to claim 1, wherein the fuel injection timing is advanced as an output of the combustion heater is increased.
Claim 4
Dependent Claim
36 words
A compression-ignition internal combustion engine having a combustion heater according to claim 2, wherein a value of an output of the combustion heater is determined by comparing an engine cooling water temperature with a predetermined temperature.
Claim 5
Dependent Claim
31 words
A compression-ignition internal combustion engine having a combustion heater according to claim 3, wherein the fuel injection timing is determined based on a magnitude of the output of the combustion heater.
Claim 6
Dependent Claim
54 words
A compression-ignition internal combustion engine having a combustion heater according to claim 4, wherein the fuel injection timing is determined based on a reference fuel injection timing which is a reference timing of fuel injection and a correction value indicating an amount of angle advancement to be added to the reference fuel injection timing.
Claim 7
Dependent Claim
32 words
A compression-ignition internal combustion engine having a combustion heater according to claim 5, wherein the correction value is increased or decreased according to the magnitude of the output of the combustion heater.
Claim 8
Dependent Claim
29 words
A compression-ignition internal combustion engine having a combustion heater according to claim 6, wherein a lean NOx catalyst is provided in an exhaust system of the internal combustion engine.
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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) | 2003-09-19 | 2004-03-20 | 2004-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-09-19 | 2008-03-20 | 2008-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-09-19 | 2012-03-20 | 2012-09-19 | $7700.00 | Window Closed / Lapsed |