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767 results about "Forced induction" patented technology

Forced induction is the process of delivering compressed air to the intake of an internal combustion engine. A forced induction engine uses a gas compressor to increase the pressure, temperature and density of the air. An engine without forced induction is considered a naturally aspirated engine.

Combined-type diesel engine waste heat energy recycling system

The invention discloses a multi-grade waste heat energy cascade recycling system for a diesel engine, and particularly relates to a combined-type diesel engine waste heat energy recycling system. The waste heat energy recycling system is structurally characterized in that a high-temperature Rankine cycle system is composed of a working medium pump, a thermoelectric generator, an EGR heat exchanger, an exhaust heat exchanger, a steam turbine, a condenser and the like of a high-temperature system; a low-temperature Rankine cycle system is composed of a working medium pump, an EGR heat exchanger, an exhaust heat exchanger, the cylinder body cooling water heat exchanger, the supercharged air heat exchanger, a steam turbine, a condenser and the like of a low-temperature system. A middle electrical machine is arranged between a turbine motor and a supercharger; the waste heat of cooling water, supercharged air, exhausted gas, EGR recirculated waste gas and the like are utilized, and through the high-temperature and low-temperature organic Rankine cycles, thermoelectric power generation, turbine direct power generation and the like, heat exchange can be carried out between various kinds of waste heat generated by the diesel engine and working media sequentially according to the grade. Due to arrangement of the middle electrical machine, the expansion ratio of the exhausted gas can be improved, and excess pressure energy of the exhausted gas can be directly recycled. Full recycling of multi-grade waste heat energy of an internal combustion engine can be achieved, irreversible losses of the system are reduced, the fuel economical efficiency is effectively improved, and therefore the aims of saving energy and reducing emissions are achieved.
Owner:TIANJIN UNIV

Apparatus for determining an abnormality of a control valve of an internal combustion engine

The present invention is applied to an internal combustion engine comprising a first supercharger 61, a second supercharger 62, a first control valve 66 for controlling a supply of an exhaust gas to the first supercharger, and a second control valve 64 for controlling a supply of an air to the first supercharger, and provides to an apparatus for determining an abnormality of a control valve which can determine abnormality of the first control valve and the second control valve. The apparatus for determining an abnormality of a control valve determines abnormality of a control valve when a supercharging pressure is smaller than a predetermined referential supercharging pressure by a predetermined value or more. The apparatus for determining an abnormality of a control valve determines that the first control valve is abnormal and the second control valve is normal if a pressure of an air at a downstream side of a compressor of the first supercharger is larger than a pressure of an air at an upstream side of the compressor by a predetermined value or more. In the meantime, the apparatus for determining an abnormality of a control valve determines that either one of the first control valve and the second control valve is abnormal if the pressure of the air at a downstream side of the compressor of the first supercharger is not larger than the pressure of the air at an upstream side of the compressor by a predetermined value or more.
Owner:TOYOTA JIDOSHA KK
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