Abstract:
An electricity generation unit 1A includes a combustor 11, a heater 13, and a Rankine cycle circuit 20. The combustor 11 combusts a solid fuel. A combustion gas generated in the combustor 11 passes through a flue 12. The heater 13 contains a heat storage material, and heats the heat storage material by allowing heat exchange to take place between the combustion gas in the flue 12 and the heat storage material. The Rankine cycle circuit 20 has an evaporator 21 that evaporates a working fluid in the Rankine cycle by allowing heat exchange to take place between the heat storage material heated in the heater 13 and the working fluid. With this configuration, stable operation of an electricity generation unit using a combustion gas of a solid fuel is achieved.
Abstract:
An engine system for controlling an exhaust gas flow includes an intake line arranged to draw in outdoor air, an engine combusting the outdoor air supplied through the intake line and fuel in a combustion chamber of the engine to generate torque, an exhaust line for exhausting exhaust gas from the combustion in the combustion chamber of the engine, a turbocharger having a turbine operated by the exhaust gas passing through the exhaust line and a compressor for compressing the outdoor air in the intake line, a catalyst unit arranged on a downstream side of the turbocharger for reducing harmful components of the exhaust gas, a bypass line branched from the exhaust line on the downstream side of the turbocharger and joined to the exhaust line on a downstream side of the catalyst unit, and a bypass valve arranged on the bypass line for selectively opening/closing the bypass line.
Abstract:
A combined thermodynamic system for the production of mechanical power. The system comprises a gas turbine and a turbomachinery driven by the gas turbine. The system further comprises a thermodynamic organic Rankine cycle with a turboexpander. A heat transfer arrangement transfers heat from exhaust combustion gases of the gas turbine to the thermodynamic organic Rankine cycle, wherein heat is converted into mechanical power used for driving a driven a turbomachine.
Abstract:
The present invention is to drive a hydraulic pump and a generator motor by an engine, to electrically charge a battery by a generator action of the generator motor, and to drive the generator motor by electric power of the battery so as to assist the engine. A governor position is changed by operations of a potentiometer for accelerator and a mode selection switch so as to control rotation speed of the engine. On the premise of the above configuration, generator output is limited by a controller at the time of accelerating the engine until the rotation speed of the engine reaches set speed determined on the basis of the operations of the potentiometer for accelerator and the mode selection switch, and hence engine load is reduced so as to assist acceleration.
Abstract:
A control system for an hydraulic supercharger system. The control system is specially adapted to control a supercharger system comprising: (A) an hydraulic pump; (B) a supercharger comprising: an hydraulic turbine drive and a compressor driven by the hydraulic turbine drive; (C) a main hydraulic piping means providing a hydraulic circulation loop for hydraulic fluid to flow from said pump, to drive said hydraulic turbine drive, and back to said pump; and (D) a supercharger bypass system comprising a controlled bypass valve and a piping means to permit a portion of said hydraulic fluid to bypass said supercharger turbine drive. The control system includes a solenoid arranged to close and partially or fully open the controlled bypass valve. The solenoid may be controlled by a pressure switch connected to sense hydraulic pressure and to apply a voltage to said solenoid to open or close said valve upon said hydraulic pressure reaching a predetermined value. Since the hydraulic pressure increases with engine speed, it is a simple matter to adjust the control system to provide for the hydraulic fluid to drive the supercharger or to bypass the supercharger at any predetermined ranges of engine speed. The bypass valve may also be controlled based on engine throttle position. In another preferred embodiment where the turbocharger system comprising an air flow check valve which opens when a turbocharger is providing sufficient air to the engine, the bypass valve is also subject to control based on the position of the check valve, so that the hydraulic supercharger can be substantially bypassed when the turbocharger is able provide sufficient air to the engine.
Abstract:
A centrifugal supercharger includes a housing, an input shaft rotatably supported on the housing, a pulley related with one end of the input shaft, an output shaft rotatably supported on the housing, a compressor rotor fixed to one end of the output shaft, a cover located around the compressor rotor, and fixed to the housing, and forming a supercharging passage, an rotating speed step-up device connecting between other end of the input shaft and other end of the output shaft, an oil-supplying device integrated with the step-up device, and a distributing device faced with the oil-supplying device, and formed on the housing.
Abstract:
An intake air booster for boosting air flow in an internal combustion engine or the like which includes a first air passageway communicating directly with an engine intake manifold having a plurality of interleaved rotating and stationary blades, the rotating blades forming a second internal passageway, the stationary blade providing an outer housing, so that air passing through this first passageway will be stirred by virtue of the interaction against these blades; the second air passageway formed by an internal band contained on the rotating blades includes caps on bottom and top portions of the passageway provided with a plurality of inlets and outlets and a source of compressed air adapted to engage the cap and by so doing providing additional air through the air passageway while simultaneously increasing the rotation of the rotary blades in the first air passageway, the source of compressed air including a reservoir and appropriate valving and sensing means which selectively engage the compressed air for the additional throughflow. In this manner, beneficial air can be combined with an increased fuel delivery for more efficient combustion and power.
Abstract:
An internal combustion engine is provided with air-charge or fuel-air-charge induction means which acts as a supercharger during one mode of operation and as a subcharger during another mode. The induction means is mechanically driven from the engine via a variable speed hydraulic transmission arrangement. Means are provided to appropriately change the hydraulic circuit at the moment when power flow through the hydraulic transmission changes direction. During the subcharging mode the air-charge or fuel-air-charge induction means acts as a throttle, but the energy lost in the resulting pressure drop is returned to the engine by way of the variable speed hydraulic transmission arrangement.
Abstract:
A turbine, driven from the exhaust gases of the internal combustion engine, and having a speed-flow volume and pressure differential characteristic which is only little speed-dependent drives a Foettinger hydrodynamic torque converter which has a pump element which is highly speed-dependent, a radial flow turbine which is only little speed-dependent, and a guide vane element, the radial flow turbine of the fluid coupling driving a displacement-type rotary compressor so that, even at low engine speeds of the internal combustion engine, substantial supercharging effect can be obtained, whereas, as the engine speed increases, less supercharging effect will be obtained so that the average cylinder pressure at low speeds will be increased of cylinder pressure and engine torque will increase with decreasing speed, keeping the output power constant over a wide range of engine-operating speeds.