Temperature sensing system for an internal combustion engine
First Claim
1. A temperature sensing system for sensing cylinder head temperature in an internal combustion engine, with the engine having a cylinder block having a piston reciprocally housed in a cylinder formed therein, and a cylinder head having a fire deck, with the cylinder head being mounted to the cylinder block so as to close the outer end of the cylinder thereby defining a combustion chamber between the cylinder head fire deck and the top of the piston, with said system comprising:
- a temperature sensor having an elongate portion in operative contact with the cylinder head for sensing the temperature of the cylinder head such that, when installed, said elongate portion is axially deformed by a predetermined amount, to provide a thermally conductive engagement with the cylinder head.
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Accused Products
Abstract
A temperature sensing system for an internal combustion engine includes a cylinder head temperature sensor. The temperature sensor has an elongate portion such that when the sensor is installed in the cylinder head, the elongate portion is axially deformed by a predetermined amount to provide a thermally conductive engagement with the cylinder head.
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Citations
17 Claims
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1. A temperature sensing system for sensing cylinder head temperature in an internal combustion engine, with the engine having a cylinder block having a piston reciprocally housed in a cylinder formed therein, and a cylinder head having a fire deck, with the cylinder head being mounted to the cylinder block so as to close the outer end of the cylinder thereby defining a combustion chamber between the cylinder head fire deck and the top of the piston, with said system comprising:
a temperature sensor having an elongate portion in operative contact with the cylinder head for sensing the temperature of the cylinder head such that, when installed, said elongate portion is axially deformed by a predetermined amount, to provide a thermally conductive engagement with the cylinder head. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An internal combustion engine comprising:
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a cylinder block having a piston reciprocally housed in a cylinder formed therein; a cylinder head having a fire deck, with said cylinder head mounted to said cylinder block so as to close the outer end of said cylinder thereby defining a combustion chamber between said cylinder head fire deck and the top of said piston; and a temperature sensor having an elongate portion in operative contact with said cylinder head for sensing the temperature of said cylinder head, with said sensor having a threaded portion such that when said sensor is threaded to said cylinder head, said elongate portion is axially deformed by a predetermined amount to provide a thermally conductive engagement with said cylinder head. - View Dependent Claims (10, 11, 12)
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13. A temperature sensor comprising:
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a tubular elongate portion having a closed end; a thermistor assembly disposed in said tubular portion and spaced from said closed end, with said thermistor assembly comprising; a body; a first electrical lead connected to said body and extending in a first direction; a second electrical lead connected to said body and partially extending in a second direction opposite said first direction, with said second lead then extending in the same direction as said first direction thereby defining a generally U-shaped bend in said second electrical lead; with said tubular elongate portion being variably deformable such that when secured in a bore having a length less than the length of said tubular elongate portion, said tubular elongate portion is axially deformed by a predetermined amount to provide a thermally conductive engagement within the bore and said thermistor assembly remains substantially undeformed. - View Dependent Claims (14, 15, 16, 17)
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Specification