초록 ▼

An exhaust bypass type turbo-charger includes a turbine driven by an exhaust gas from an internal combustion engine, a compressor driven by the turbine and supplying a compressed air into the engine, an exhaust bypass valve for controlling an amount of the exhaust gas bypassing the turbine, a drive

An exhaust bypass type turbo-charger includes a turbine driven by an exhaust gas from an internal combustion engine, a compressor driven by the turbine and supplying a compressed air into the engine, an exhaust bypass valve for controlling an amount of the exhaust gas bypassing the turbine, a drive mechanism for fluidly driving the exhaust bypass valve, and a transducer. The transducer communicated fluidly with both the drive mechanism and an outlet of the compressor, and amplifies the pressure variation of air discharged from the compressor so that the amplified pressure variation is applied in the drive mechanism. The drive mechanism, therefore, can start to open the exhaust bypass valve at a relatively smaller pressure, and fully open it at a relatively larger pressure.

대표청구항 ▼

An exhaust bypass type turbo-charger comprising: a turbine driven by an exhaust gas introduced from an internal combustion engine into the interior of said turbine through an exhaust introduction passage; a compressor operatively connected to said turbine so as to be driven by said turbine, said com

An exhaust bypass type turbo-charger comprising: a turbine driven by an exhaust gas introduced from an internal combustion engine into the interior of said turbine through an exhaust introduction passage; a compressor operatively connected to said turbine so as to be driven by said turbine, said compressor communicating with said engine through a discharge passage to supply air into said engine; an exhaust bypass passage communicating with said exhaust introduction passage for causing a portion of exhaust gas from said engine to bypass said turbine; an exhaust bypass valve for controlling an amount of exhaust gas passing through said exhaust bypass passage; a drive mechanism operatively connected to said exhaust bypass valve for driving said exhaust bypass valve in response to the pressure introduced in said drive mechanism; and a transducer fluidly communicating with both said discharge passage and interior of said drive mechanism for amplifying the pressure variation in said discharge passage and introducing the pressure amplified in its variation into the interior of said drive mechanism so that said exhaust bypass valve is driven in response to the amplified pressure variation.