Process and device for protection of temperature-sensitive components in the intake area of an internal combustion engine with exhaust recirculation
First Claim
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1. A system for diminishing the thermal effects of the exhaust gas recirculation in an internal combustion chamber of a motor vehicle, comprising:
- means for sensing the temperature of said gas at a selected point along the flow thereof;
means for comparing said sensed temperature with a selected temperature; and
means for adjusting the supply of said gas responsive to a selected deviation of said sensed temperature from said selected temperature.
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Abstract
A method of diminishing the thermal effects of the exhaust gas recirculation in an internal combustion engine of a motor vehicle generally consisting of sensing the temperature of the gas at a selected point along the flow thereof, comparing the sensed temperature with a selected temperature and adjusting the supply of the gas responsive to a selected deviation of the sensed temperature from the selected temperature.
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Citations
14 Claims
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1. A system for diminishing the thermal effects of the exhaust gas recirculation in an internal combustion chamber of a motor vehicle, comprising:
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means for sensing the temperature of said gas at a selected point along the flow thereof; means for comparing said sensed temperature with a selected temperature; and means for adjusting the supply of said gas responsive to a selected deviation of said sensed temperature from said selected temperature. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of diminishing the thermal effect of the exhaust gas recirculation in an internal combustion engine of a motor vehicle, comprising:
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sensing a value of at least one of an operating condition of said vehicle selected from a group including the pressure of the gas mixture of the intake air and recirculated exhaust gas, the temperature of the gas mixture of the intake air and recirculated exhaust air, the engine temperature, the outside temperature, the residual gas amount run at an operating point, the duration of said operating point, the driving speed of the vehicle, the engine speed and the engine load; computing a value of the temperature in the intake manifold from said sensed value by means of a model; and adjusting at least one of the inlet and outlet camshafts of the vehicle engine in response to said computed value.
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9. A method of diminishing the thermal effect of the exhaust gas recirculation in an internal combustion engine of a motor vehicle, comprising:
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sensing the temperature of said gas at a selected point, along the flow thereof; comparing said sensed temperature with a selected temperature; and adjusting the supply of said gas responsive to a selected deviation of said sensed temperature from said selected temperature. - View Dependent Claims (10, 11, 12, 13, 14)
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Specification