IPC분류정보
| 국가/구분 |
United States(US) Patent
등록
|
| 국제특허분류(IPC7판) |
|
| 출원번호 |
US-0901829
(1986-08-28)
|
| 우선권정보 |
DE-3532938 (1985-09-14) |
|
발명자
/ 주소 |
- Bucher Jakob (Bobingen DEX)
|
| 출원인 / 주소 |
- M.A.N. - B&W Diesel GmbH (Augsburg DEX 03)
|
| 인용정보 |
피인용 횟수 :
31 인용 특허 :
0 |
초록
▼
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 hyd
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).
대표청구항
▼
Supercharged internal combustion engine (ICE) (1) having an exhaust gas turbosupercharger (4), said exhaust gas turbosupercharger having a supercharger shaft (7), a turbine (5) coupled to receive exhaust gases from the ICE (1) and a compressor part (6) providing supercharged air to the ICE, and an e
Supercharged internal combustion engine (ICE) (1) having an exhaust gas turbosupercharger (4), said exhaust gas turbosupercharger having a supercharger shaft (7), a turbine (5) coupled to receive exhaust gases from the ICE (1) and a compressor part (6) providing supercharged air to the ICE, and an energy recuperation system coupled to said supercharger shaft to provide utilizable energy output upon excess energy being supplied to the supercharger by the exhaust gases coupled thereto, and to provide auxiliary energy to the supercharger shaft when the exhaust gases from the ICE are insufficient to provide energy to rotate said supercharger shaft (7) to provide supercharged air to the ICE, wherein the energy recuperation and auxiliary energy supply system comprises a hydraulic pump-motor unit (10) coupled to said supercharger shaft (7); means (11, 26, 27, 29, 28, 12, 13) coupled to an inlet of the hydraulic pump-motor unit (10) to supply pressurized hydraulic fluid to said unit including an auxiliary hydraulic pump (27) and motor means (26) driving said pump; a hydraulic connection line (14) hydraulically coupled to an outlet of said unit (10); a hydraulic motor (15); energy utilization means (8, 17, 24, 25) coupled to the hydraulic motor to accept energy therefrom; a hydraulic fluid control valve (30) connected in said hydraulic connection line and controllably, selectively directing hydraulic fluid from said unit (10) to the hydraulic motor (15) or to a hydraulic fluid supply or sump (11); and a control unit (21) coupled to control, selectively, operation of said motor means (26) and hence said hydraulic pump (27); further coupled to and controlling the operation of the hydraulic pump-motor unit (10); and further coupled to and controlling, selectively, operation of said fluid control valve (30), to control flow of hydraulic fluid to said hydraulic pump-motor unit (10) and, selectively, from said unit (10) to the hydraulic motor (15) or the supply or sump (11), said comtrol unit receiving inputs responsive to operating parameters of the ICE comprising pressure of hydraulic fluid flowing to or from said unit (10) and at least one of: pressure of supercharged air (PL); speed of the ICE (nM); fuel supply (FB) to permit under acceleration conditions of the ICE, and when the exhaust gases have insufficient energy, providing additional super-charged air to the ICE by supplying pressurized hydraulic fluid to said hydraulic pump-motor unit (10), whereby additional rotary energy is supplied to said super-charger shaft (7) for supplying said additional supercharged air to the ICE.
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