Oil supply method for an internal combustion engine
AssigneeOrbital Engine Company Australia
InventorsStephen Reinhard Malss, David Richard Worth
Life of this patent
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Abstract
A method of controlling the oil flow rate for an internal combustion engine including: a) defining a break-in period of the engine; b) determining whether the engine is running within the break-in period; and c) varying the oil flow rate for the engine if the engine is running within said break-in period from the oil flow rate for the engine when running under normal conditions outside the break-in period such that the oil flow rate during the break-in period is generally higher than the oil flow rate under normal engine conditions.
Claims18
A method of controlling the oil flow rate for an internal combustion engine including:
- a) defining a predetermined threshold value of an engine operating parameter;
- b) defining a break-in period of the engine;
- c) determining whether the engine is running within the break-in period;
- and
- d) increasing the oil flow rate for the engine from the oil flow rate for the engine when running under engine conditions outside the break-in period if the engine is running above said threshold value within said break-in period such that the oil flow rate during the break-in period is relatively higher than the oil flow rate under engine conditions after the break-in period.
A method of controlling a positive oil flow rate for an internal combustion engine comprising:
- (a) determining whether the engine is running within a break-in period of the engine;
- (b) determining whether the engine is running above a predetermined threshold value of an engine operating parameter;
- (c) in response to the determinations in steps (a) and (b), controlling the positive oil flow rate for the engine according to a first mode when (i) the engine is running outside the break-in period and the engine is running above the threshold value, (ii) the engine is running outside the break-in period and the engine is running below the threshold value, and (iii) the engine is running within the break-in period and the engine is running below the threshold value;
- and
- (d) in response to the determinations in steps (a) and (b), controlling the positive oil flow rate for the engine according to a second mode when the engine is running within the break-in period of the engine and above the threshold value;
- wherein, for the same engine operating conditions, the second mode causes a higher positive oil flow rate than the first mode.
A method of controlling a positive oil flow rate for an internal combustion engine comprising:
- (a) determining whether the engine is running within a break-in period of the engine;
- (b) determining whether the engine is running above a predetermined threshold value of an engine operating parameter;
- (c) in response to the determinations in steps (a) and (b), controlling the positive oil flow rate for the engine according to a first mode when the engine is running within the break-in period and the engine is running below the threshold value;
- and
- (d) in response to the determinations in steps (a) and (b), controlling the positive oil flow rate for the engine according to a second mode when the engine is running within the break-in period of the engine and above the threshold value;
- wherein, for the same engine operating conditions, the second mode causes a higher oil flow rate than when the engine is running outside the break-in period.
Dependencies are inferred from the claim text.