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US 4,227,372 AGranted
Motor vehicle equipped with turbocharger
AssigneeNissan Motor Co., Ltd.
InventorsKunihiko Kakimoto, Masaru Kodaira
Life of this patent
Estimating the term…
Abstract
A motor vehicle comprises a turbocharger, a vehicle speed sensor, and means for decreasing the pressure of air pressurized by the turbocharger when the vehicle speed sensor senses a predetermined high vehicle speed so that the maximum vehicle speed is limited to a desirable level.
Claims15
A motor vehicle having an engine body formed with combustion chambers, comprising:
- means defining an intake passageway through which the combustion chambers are communicable with atmospheric air to supply the combusion chambers with air;
- a turbocharger having a compressor wheel rotatably disposed in said intake passageway to pressurize air passing through said intake passageway, said turbocharger being driven by the pressure of exhaust gases discharged from the combustion chambers;
- vehicle speed sensing means for sensing a vehicle cruising speed of a predetermined level or higher to produce an electric signal;
- and
- means, responsive to said vehicle speed sensing means, for decreasing the pressure of air passing through said intake passageway downstream of said compressor wheel on receiving said electrical signal from said vehicle speed sensing means.
2 more elements
A motor vehicle having an engine body formed with combustion chambers, comprising:
- means defining an intake passageway through which the combustion chambers are communicable with atmospheric air to supply the combustion chambers with air;
- a turbocharger having a compressor wheel rotatably disposed in said intake passageway to pressurize air passing through said intake passageway, said turbocharger being driven by the pressure of exhaust gases discharged from the combustion chambers;
- a speedometer for measuring the cruising speed of the vehicle;
- switching means operatively connected to said speedometer to produce an electric signal when said speedometer indicates that the vehicle cruising speed reaches a predetermined level or higher;
- and
- means for decreasing the pressure of air passing through said intake passageway downstream of said compressor wheel on receiving said electric signal from said switching means.
3 more elements
A motor vehicle having an engine body formed with combustion chambers, comprising:
- means defining an intake passageway through which the combustion chambers are communicable with atmospheric air to supply the combustion chambers with air;
- a turbocharger having a compressor wheel rotatably disposed in said intake passageway to pressurize air passing through said intake passageway, said turbocharger being driven by the pressure of exhaust gases discharged from the combustion chambers;
- means defining an intake air by-pass passage having first and second ends which are connected to said intake passageway, said first and second ends being connected to upstream and downstream sides of the compressor wheel of said turbocharger, respectively;
- a speedometer for measuring the cruising speed of the vehicle;
- switching means operatively connected to said speedometer to produce an electric signal when said speedometer indicates that the vehicle speed reaches a predetermined high level or higher;
- and
- a valve operatively disposed in said intake air by-pass passage, said valve being opened to provide communication between the upstream and downstream sides of the compressor wheel when actuated on receiving said electric signal from said switching means.
4 more elements
A motor vehicle having an engine formed with combustion chambers, comprising:
- means defining an intake passageway through which the combustion chambers are communicable with atmospheric air to supply the combustion chambers with air;
- a turbocharger having a compressor wheel rotatably disposed in said intake passageway to pressurize air passing through said intake passageway, said turbocharger being driven by the pressure of exhaust gases discharged from the combustion chambers;
- means defining an exhaust gas passageway through which the combustion chambers are communicable with atmospheric air, the turbine wheel of said turbocharger being rotatably disposed in said exhaust gas passageway;
- means defining an exhaust gas by-pass passage having first and second ends which are connected to said exhaust gas passageway, said first and second ends being connected to the upstream and downstream sides of the turbine wheel of said turbocharger, respectively;
- a speedometer for measuring the cruising speed of the vehicle;
- switching means operatively connected to said speedometer to produce an electric signal when said speedometer indicates that the vehicle cruising speed reaches a predetermined level or higher;
- and
- a valve operatively disposed in said exhaust gas by-pass passageway, said valve being opened to provide communication between the upstream and downstream sides of the turbine wheel when actuated on receiving said electric signal from said switching means.
5 more elements
Dependencies are inferred from the claim text.