Fluid Motor And Engine Each Drive At Least One Means To Supercharge The Engine Patents (Class 60/609)
  • Patent number: 5269144
    Abstract: The combination of an intake air supply system with an internal combustion engine having a charge air cooler, a cylinder charging air intake and an exhaust discharge is provided. The intake air supply system includes a Roots-type positive displacement blower having inlet and outlet means and an exhaust gas driven turbo-compressor connected in series with the blower. The intake air supply system further includes a bypass passage connecting the blower inlet and outlet and a valve in the bypass passage to control the flow of fluid through the bypass. The valve is operative to open and close the bypass passage in response to engine operating parameters and to modulate the flow area of the passage in response to the same engine operating parameters so as to infinitely vary the flow area between the open and closed positions of the valve.
    Type: Grant
    Filed: September 10, 1991
    Date of Patent: December 14, 1993
    Assignee: Detroit Diesel Corporation
    Inventors: Stanley P. Miller, Craig L. Savonen, Steven M. Weisman, David P. Tasky, Jeffery S. Hawkins, Richard E. Winsor
  • Patent number: 5133188
    Abstract: An engine having a turbocharger is supercharged by an air compressor and decelerated by another air compressor. These two air compressors are connected with the crankshaft of the engine. The former air compressor possesses a capacity smaller than the latter. Clutches are provided between the air compressors and crankshaft. When the engine is operated at a low speed and the supercharging to the turbocharger is insufficient, the supercharging air compressor is activated whereas when the engine is operated at an intermediate or high speed an a large brake force is required, the brake air compressor is activated to ensure a safe deceleration of the vehicle.
    Type: Grant
    Filed: September 10, 1990
    Date of Patent: July 28, 1992
    Assignee: Isuzu Motors Limited
    Inventor: Masaki Okada
  • Patent number: 5058537
    Abstract: An improved high pressure, high r.p.m.
    Type: Grant
    Filed: April 21, 1989
    Date of Patent: October 22, 1991
    Inventors: Marius A. Paul, Ana Paul
  • Patent number: 5056314
    Abstract: An internal combustion engine with a supercharging system that includes both a turbocompressor and a positive displacement rotary compressor of the Wankel type wherein the rotary compressor provides compressed air to the engine at low operating speed and the turbocompressor provides sufficient compressed air at high operating speeds to drive the rotary compressor while providing sufficient air to power the engine.
    Type: Grant
    Filed: October 30, 1989
    Date of Patent: October 15, 1991
    Inventors: Marius A. Paul, Ana Paul
  • Patent number: 4903488
    Abstract: An engine has an air supply passage and an exhaust gas passage. A supercharger and a turbocharger compressor are disposed in the air supply passage. The turbocharger compressor is disposed downstream of the supercharger and is driven by a turbocharger turbine disposed in the exhaust gas passage. A valved air by-pass is provided for conducting air around the supercharger between the supercharger outlet and inlet. A valved exhaust gas by-pass is provided for conducting exhaust gas around the turbine. During engine low speed operation the air by-pass and exhaust gas by-pass are closed and air is compressed by both the supercharger and compressor acting in series. During an intermediate speed range, the air by-pass is partially opened under the control of the air pressure at the compressor outlet to assure that such air pressure does not exceed a preset value.
    Type: Grant
    Filed: September 30, 1988
    Date of Patent: February 27, 1990
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventor: Noriyoshi Shibata
  • Patent number: 4738110
    Abstract: A diesel engine comprising an intake passage in which a turbocharger and a mechanically driven charger are arranged. A bypass passage bypassing the mechanically driven charger is provided, and a bypass valve is arranged in the bypass passage. When the engine is started, the mechanically driven charger is operated and the bypass valve is closed. When the engine is operating under a partial load after completion of the warm-up of the engine, the operation of the mechanically driven charger is stopped and the bypass valve is opened.
    Type: Grant
    Filed: March 26, 1987
    Date of Patent: April 19, 1988
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Hidenori Tateno
  • Patent number: 4730457
    Abstract: A supercharging system has a turbocharger driven by exhaust-gas of the engine, a supercharger driven by an engine and communicated with the turbocharger and the engine in series. A clutch is provided in a device for driving the supercharger and a bypass having a control valve is provided around the supercharger. A control unit is provided to respond to engine operating conditions for operating the clutch and the control valve. The control unit operates to disengage the clutch at light load on the engine in a predetermined low engine speed range, to engage the clutch at heavy load in the low engine speed range, and to disengage the clutch in a predetermined high engine speed range. The control valve is gradually opened in accordance with variation of engine operation conditions when the engine operation is in a transient state.
    Type: Grant
    Filed: October 23, 1986
    Date of Patent: March 15, 1988
    Assignee: Fuji Jukogyo Kabushiki Kaisha
    Inventors: Takemasa Yamada, Hideo Yabuhara, Fujio Takimoto
  • Patent number: 4696165
    Abstract: Auxiliary compressed air is supplied to an inlet manifold (3) of an internal combustion engine (1) by an auxiliary compressor (8), driven from the main shaft of the ICE. A controlled clutch (17) is interposed between the engine (1) and the auxiliary compressor, the clutch being controlled by a memory and controller (18) receiving inlet manifold pressure signals (P) and fuel quantity signals (F) and providing output control signals to the controlled clutch (17) based on stored functions or tables within the memory and controller to provide for desired and optimum operation of the engine with appropriate charge air in view of injected fuel quantity. The compressed air derived from the auxiliary compressor (8) is injected into the main compressor to impinge on the vanes or blades (15) of the main compressor (6).
    Type: Grant
    Filed: November 21, 1985
    Date of Patent: September 29, 1987
    Assignee: M.A.N.-B&W Diesel GmbH
    Inventor: Jakob Bucher
  • Patent number: 4669269
    Abstract: A supercharged internal combustion engine for a drive system of land vehicle with an air filter (18) and a charging air manifold (12) connected with each other by several flow paths (21, 22, 23) for the combustion air. Each flow path (21, 22, 23) is equipped with a check valve (19, 36, 26) while the flow path (22) is additionally equipped with a controllable closure device (20) and the flow paths (22, 23) are equipped with one charging air compressor (27, 31) each. The charging air compressor (27) includes a drive by an exhaust gas turbine (28). The charging air compressor (31) is driven by an electric motor (32) with permanent magnet energization, whereby the energy for feeding the electric motor (32) is supplied by a generator (33) energized by permanent magnet and driven by the internal combustion engine (11). Depending on the operating condition of the internal combustion engine (11), one of the flow paths or several flow paths are simultaneously in operation.
    Type: Grant
    Filed: March 7, 1986
    Date of Patent: June 2, 1987
    Assignee: MTU Motoren- und Turbinen- Union Friedrichshafen GmbH
    Inventors: Hans Dinger, Helmut Klotz
  • Patent number: 4505117
    Abstract: An internal combustion engine including a turbocharger and a controller for the turbocharger. The engine has an air intake to receive a charge of compressed air while the turbocharger includes a compressor connected to the air intake. The turbine is connected to and driven by exhaust gases of the engine and drives the compressor. The controller limits the pressure of the compressed air charge to below a predetermined pressure at high engine speed. The engine further includes a positive displacement compressor connected to the inlet of the turbocharger compressor to supply compressed air at low engine speeds, and a direct drive for the positive displacement compressor. The drive is selectively operable and able to be selectively disabled.
    Type: Grant
    Filed: June 7, 1982
    Date of Patent: March 19, 1985
    Assignee: Warner-Ishi
    Inventor: Hideaki Matsuoka
  • Patent number: 4502283
    Abstract: A turbocharged internal combustion engine, preferably of the two-stroke cycle type, is provided with a Roots type positive displacement charging blower having a bypass passage in one end plate and controlled by a single plunger control valve responsive solely to blower outlet pressure to provide for bypassing air flow around the blower under various engine operating conditions either in reverse direction to reduce excess blower power or in the direction of flow to provide additional charging air.
    Type: Grant
    Filed: September 24, 1982
    Date of Patent: March 5, 1985
    Assignee: General Motors Corporation
    Inventor: David M. Wandel
  • Patent number: 4399778
    Abstract: A two-stroke engine includes an intake-and-scavenge valve in the cylinder head together with a fuel injection system, a recirculating type pressure lubricating system, and a blower or turbo charger assisting in charging the cylinder with air and also assisting in scavenging the exhaust gases . The piston head is domed with one side curving downwardly towards the exhaust port formed through the wall of the cylinder above the bottom dead center position of the piston head. The exhaust port slopes outwardly and downwardly following generally the slope of the piston to facilitate the flow of exhaust gases therethrough assisted by the scavenging air entering through the inlet-and-scavenger valve. The valve is operated by a cam mounted on a cam shaft upon the cylinder head which in turn is operatively connected to the crankshaft. The width of the cam lobe is such that the opening, closing and duration of opening of the valve is controlled with the valve being opened approximately 140.degree.
    Type: Grant
    Filed: January 18, 1982
    Date of Patent: August 23, 1983
    Inventor: Antonio Ancheta
  • Patent number: 4258550
    Abstract: A two-stroke cycle turbocharged internal combustion engine is provided with a dual core after-cooler and a dual function positively driven blower which at low engine loads is connected to provide necessary charging air to the engine air intake preferably through the inlet of the turbocharger compressor. During periods of high-load operation, when the turbocharger energy is alone sufficient to provide the engine inlet charge, the blower is reconnected to direct cooling air through the aftercooler system thus lowering the temperature of the inlet charge under high-load conditions. Numerous variations and modifications of the concept are disclosed.
    Type: Grant
    Filed: June 11, 1979
    Date of Patent: March 31, 1981
    Assignee: General Motors Corporation
    Inventors: Stanley J. Hinkle, Dean M. Dildine
  • Patent number: 4019324
    Abstract: In order to make better use of the energy which is generated by the combustion of fuel and air in an internal combustion engine, such an engine is provided with a turbine through which the hot exhaust combustion gases are expanded to drive a power output shaft of the turbine, a compressor for compressing the air drawn into the engine, and passages extending in the engine around the combustion chamber or chambers through which pass the compressed air which is not used for combustion, this air extracting heat from the engine and being expanded through the turbine to assist the exhaust gases in driving the turbine output power shaft.
    Type: Grant
    Filed: September 3, 1975
    Date of Patent: April 26, 1977
    Inventor: John R. Coxon