Oil jet system for internal combustion engine, and control method for oil jet system
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United States of America Patent
Stats
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Feb 6, 2018
Issued Date -
N/A
app pub date -
Sep 30, 2014
filing date -
Oct 4, 2013
priority date (Note) -
In Force
status (Latency Note)
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Abstract
In an oil jet system that directs an oil jet toward a back face of a piston, when a coolant temperature of an engine has increased to a predetermined temperature in a stopped state of the oil jet, the piston is cooled by starting the oil jet. When a lubricating oil temperature of the engine has decreased to a predetermined temperature in an operated state of the oil jet, a delay time is determined based on a variation amount in engine rotation speed and a variation amount in intake air filling factor during a predetermined period, and the oil jet is stopped after a lapse of the delay time.
First Claim
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International Classification(s)
- 2014 Application Filing Year
- F01M Class
- 274 Applications Filed
- 233 Patents Issued To-Date
- 85.04 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 4 Citation Count
- F01M Class
- 41.03 % this patent is cited more than
- 7 Age
Maintenance Fees
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|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Aug 6, 2025 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Aug 6, 2029 |
