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US 6,044,822 AGranted
Programmed break-in mode for two-cycle engine
AssigneeOutboard Marine Corporation
InventorJohn M. Daniels
Life of this patent
Estimating the term…
Abstract
An automatic and initial adjustment of pertinent engine parameters to provide an engine with a gentle break-in period. The engine's electronic control unit adjusts the engine parameters most conducive to proper break-in during operating speeds greater than a predetermined speed and for a predetermined period of break-in time.
Claims13
A method of breaking-in an internal combustion engine comprising the steps of:
- providing an engine component capable of operation under a first rate or condition and under a second rate or condition;
- determining whether the engine is operating above or below a predetermined speed;
- determining the cumulative time of engine operation above the predetermined speed;
- operating the engine component at the second rate or condition during a predetermined initial period of engine operation at speeds above the predetermined speed;
- and
- operating the engine component at the first rate or condition either when the engine speed is at or below the predetermined speed, or, after the predetermined initial period of engine operation at speeds above the predetermined speed.
3 more elements
A method of operating an oil pump to deliver oil to an internal combustion engine during break-in, the method comprising the steps of:
- providing an oil pump capable of operation so as to deliver oil to the engine at a normal oil delivery rate and at an increased oil delivery rate;
- determining whether the engine is operating above or below idle speed;
- determining the cumulative time of engine operation above idle speed;
- operating the oil pump to deliver oil to the engine at the increased oil delivery rate during a predetermined initial period of engine operation at speeds above idle speed;
- and
- operating the oil pump to deliver oil to the engine at the normal oil delivery rate either when the engine speed is at or below idle speed or after the predetermined initial period of engine operation at speeds above idle speed.
3 more elements
An internal combustion engine comprising:
- an engine component capable of operating under a first rate or condition and under a second rate or condition;
- a sensor operable to detect engine speed;
- and
- an electronic control connected to the engine component and to the sensor, said electronic control being operable:
- (1) to operate the engine component at the second rate during a predetermined initial period of engine operation only at speeds above a predetermined speed;
- and
- (2) to operate the engine component at the first rate either when the engine is operating at speeds at or below the predetermined speed or after the initial predetermined period of engine operation at speeds above the predetermined speed;
- a comparator operable to determine whether engine speed is above or below the predetermined speed;
- and
- a counter operable to determine the cumulative time of initial engine operation above the predetermined speed.
7 more elements
An internal combustion engine comprising:
- an engine component capable of operating at a normal rate and at an increased rate;
- a sensor operable to determine engine speeds;
- and
- an electronic control connected to the engine component and to the sensor, said electronic control being operable to:
- (1) operate the engine component at the increased rate during a predetermined initial period of engine operation only at speeds above idle speed;
- and
- (2) operate the engine component at the normal rate either when the engine is operating at speeds at or below idle speed or after the initial predetermined period of engine operation at speeds above idle speed;
- a comparator operable to determine whether engine speed is above or at or below idle speed;
- and
- a counter operable to determine the cumulative time of initial engine operation above idle speed.
7 more elements
An internal combustion engine comprising:
- an oil pump capable of operating so as to deliver oil to the engine under a normal oil delivery rate and at an increased oil delivery rate;
- a sensor operable to detect engine speed;
- and
- an electronic control connected to the oil pump hand to the sensor and being operable:
- (1) to operate the oil pump to deliver oil to the engine at the increased oil delivery rate during a predetermined initial period of engine operation only at speeds above idle speed;
- and
- (2) to operate the oil pump to deliver oil to the engine at the normal oil delivery rate either when the engine is operating speed is at or below idle speed or after the initial predetermined period of engine operation at speeds above idle speed;
- a comparator operable to determine whether engine speed is above or below idle speed;
- and
- a counter operable to determine the cumulative time of engine;
- operation above idle speed.
8 more elements
Dependencies are inferred from the claim text.