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US 7,124,623 B2Granted
Gas sensor
AssigneeDenso Corporation
InventorKazuya Nakagawa
Life of this patent
Estimating the term…
Abstract
A gas sensor having a first end and a second end includes a hollow cylindrical housing having a flange which protrudes from outer periphery thereof, a sensing element fixed in the housing, and a heat conduction inhibitor disposed on a first end of the flange so as to prevent deterioration of parts of the gas sensor by decreasing heat conduction through the gas sensor.
Claims20
A gas sensor having a first end and a second end comprising:
- a hollow cylindrical housing having a flange which protrudes radially from an outer periphery thereof;
- a sensing element fixed in the housing;
- and
- a unitary heat conduction inhibitor formed separately from said housing and disposed to engage a first axial end face of the flange.
1 more element
A method of mounting a gas sensor to an exhaust pipe so as to reduce heat conduction from the exhaust pipe through the gas sensor comprising:
- providing a gas sensor comprising a hollow cylindrical housing having a flange which protrudes radially from an outer periphery thereof, and a sensing element fixed in the housing;
- disposing a unitary heat conduction inhibitor formed separately from said housing on a first axial end face of the flange;
- disposing a washer on a first axial end of the heat conduction inhibitor;
- and
- inserting a first end of the gas sensor into a fitting hole formed in the exhaust pipe so that the washer and the inhibitor are disposed between the exhaust pipe and the flange.
2 more elements
Dependencies are inferred from the claim text.