Power plants – Fluid motor means driven by waste heat or by exhaust energy... – With supercharging means for engine
Patent
1986-08-28
1988-03-08
Husar, Stephen F.
Power plants
Fluid motor means driven by waste heat or by exhaust energy...
With supercharging means for engine
60717, 60718, 123565, F02B 3344
Patent
active
047292253
ABSTRACT:
To efficiently recover excess energy available in a turbo supercharger (4) operated by exhaust gases from an internal combustion engine (ICE) (1), when the loading of the ICE exceeds about half of rated load, a hydraulic pump--motor unit (10) is coupled to the shaft of the turbo supercharger. The hydraulic unit (10) provides output over a hydraulic line (14) through a selectively operated valve (30) to either a hydraulic motor (15), which is coupled to an energy utilization system, for example a generator (17), or to return hydraulic fluid to a sump or suply (11). A controller (21) controls operation of the valve. If the exhaust gases are insufficient to provide excess energy for the hydraulic motor (15), the valve is controlled to return hydraulic fluid form said motor--pump unit so that, in effect, said unit (10) is idling. If the energy from the exhaust gases of the ICE is insufficient to provide necessary supercharged air, an auxiliary pump (27) driven by an electric motor (26) is operated to provide hydraulic pressure fluid to said unit (10), which will then operate as a motor, to drive the supercharging compressor shaft. The controller also selectively controls operation of the motor (26) driving the auxiliary pump (27) and operation of the valve (30) for selective supply of fluid from the unit (10) to the hydraulic motor (15) coupled to the energy utilization system or back to the supply (11).
REFERENCES:
patent: 4083188 (1978-04-01), Kumm
patent: 4622817 (1986-11-01), Kobayashi
Husar Stephen F.
M.A.N. - B&W Diesel GmbH
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