Supercharger with continuously variable drive system
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F02D-009/00
F02M-025/07
출원번호
US-0902876
(2013-05-27)
등록번호
US-8763586
(2014-07-01)
발명자
/ 주소
Ouwenga, Daniel Robert
Bevan, Karen E.
출원인 / 주소
Eaton Corporation
대리인 / 주소
Mei & Mark LLP
인용정보
피인용 횟수 :
0인용 특허 :
23
초록▼
An engine system includes a throttle valve configured to variably open and close to selectively restrict a volume of air flow. The engine system also includes a supercharger comprising an air inlet, an air outlet, a rotatable drive shaft and rotors associated with the drive shaft, wherein the superc
An engine system includes a throttle valve configured to variably open and close to selectively restrict a volume of air flow. The engine system also includes a supercharger comprising an air inlet, an air outlet, a rotatable drive shaft and rotors associated with the drive shaft, wherein the supercharger is sized to have a flow rate that substantially prevents backwards leaking of air flow. The engine system further includes a combustion engine comprising combustion chambers and an associated rotatable crank shaft and a continuously variable transmission (CVT) configured to variably transfer rotational energy between the drive shaft and the crank shaft.
대표청구항▼
1. An combustion system comprising: a control system comprising a processor, a memory, an algorithm stored in the memory, and control electronics;a positive displacement air pump comprising an air inlet, an air outlet, at least one rotor to move air from the air inlet to the air outlet, and a drive
1. An combustion system comprising: a control system comprising a processor, a memory, an algorithm stored in the memory, and control electronics;a positive displacement air pump comprising an air inlet, an air outlet, at least one rotor to move air from the air inlet to the air outlet, and a drive shaft connected to the rotor to rotate the rotor;an engine comprising combustion chambers and an associated crank shaft; anda continuously variable transmission (CVT) connected to the control system and further connected between the drive shaft and the crank shaft for transmitting a variable amount of rotational energy from the drive shaft to the crank shaft,wherein the positive displacement air pump provides all throttling for the engine. 2. The combustion system of claim 1, further comprising: an air intake system for supplying air to the combustion chambers, the air intake system comprising the positive displacement air pump; andan air exhaust system for receiving air expelled from the combustion chambers,wherein the air intake system does not comprise a bypass valve for bypassing air around the positive displacement air pump. 3. The combustion system of claim 1, wherein: the combustion engine has an engine operating range from an idled condition up to a maximum rotations per minute (RPM) of the crank shaft,the positive displacement air pump has a pump operating range from an idled condition up to a maximum RPM of the drive shaft, andthe control system controls the CVT such that the positive displacement air pump variably pumps air across the entire pump operating range as the engine operates across the entire engine operating range. 4. The combustion system of claim 1, wherein: the combustion engine has an engine operating range from an idled condition up to a maximum rotations per minute (RPM) of the crank shaft,the positive displacement air pump has a pump operating range from an idled condition up to a maximum RPM of the drive shaft, andthe control system controls the CVT such that the drive shaft of the positive displacement air pump is spun independent of the crank shaft RPM and dependent on variable engine airflow demands. 5. The combustion system of claim 1, wherein: the combustion engine has a load operating range of the crank shaft from a low engine rotations per minute (RPM) up to a high engine RPM,the positive displacement air pump has a boost operating range of the drive shaft from a high RPM high boost condition to a low RPM low boost condition, andthe control system controls the CVT such that the high boost condition occurs when the engine operates at the low engine RPM, and the low boost condition occurs when the engine operates at the high engine RPM. 6. A control system for controlling a positive displacement air pump to prevent backwards leaking of air flow, the system comprising: a combustion engine comprising combustion chambers and a crank shaft, the crank shaft having a load operating range from a low engine rotations per minute (RPM) up to a high engine RPM, and the crank shaft having an engine operating range from an idled condition up to a maximum RPM;a positive displacement air pump comprising rotors for displacing a volume of air to boost the combustion engine, the rotors affiliated with a drive shaft, the drive shaft having a boost operating range from a high RPM high boost condition to a low RPM low boost condition;a continuously variable transmission (CVT) connected to rotate the drive shaft of the positive displacement air pump; anda processor, a memory, an algorithm stored in the memory, and control electronics, the algorithm, when executed by the processor, configured to execute the steps of:controlling the CVT to substantially prevent backwards leaking of air in the positive displacement pump across the entire engine operating range; andcontrolling the CVT such that the high boost condition occurs when the engine operates at the low engine RPM, and the low boost condition occurs when the engine operates at the high engine RPM. 7. The control system of claim 6, further configured to execute the steps of: selecting a volume of airflow to the engine that does not require the use of a by-pass valve; andcontrolling the CVT to rotate the drive shaft of the supercharger to selectively supply the volume of airflow to the engine. 8. An engine system, comprising: a control system comprising a processor, a memory, an algorithm stored in the memory, and control electronics;a positive displacement air pump comprising an air inlet, an air outlet, a rotatable drive shaft, and rotors associated with the drive shaft;a combustion engine connected to receive air flow expelled from the positive displacement air pump, the combustion engine comprising combustion chambers and an associated rotatable crank shaft, the combustion engine (comprising) an operating range from an idled condition up to a maximum rotations per minute (RPM) of the crank shaft, the combustion engine comprising a plurality of airflow rates for each RPM in the operating range; anda continuously variable transmission (CVT) connected to the control system and comprising parts to variably transfer rotational energy to the drive shaft across the entire operating range of the combustion engine, and the CVT is controlled by the control system to rotate the drive shaft independent of the engine rotations per minute and dependent on variations in the engine airflow rates. 9. The engine system of claim 8, wherein: the combustion engine has a load operating range of the crank shaft from a low engine RPM up to a high engine RPM,the positive displacement air pump has a boost operating range of the drive shaft from a high RPM high boost condition to a low RPM low boost condition, andthe control system controls the CVT such that the high boost condition occurs when the engine operates at the low engine RPM, and the low boost condition occurs when the engine operates at the high engine RPM. 10. The combustion system of claim 1, wherein the control system controls the CVT and the positive displacement air pump provides more than one selectable quantity of air to the engine for at least one rotation speed of the crank shaft.
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이 특허에 인용된 특허 (23)
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Hardy James A. (Playa del Rey CA) Alfano David L. (Redondo Beach CA), Internal combustion engine having a variably engagable slipping wet clutch for driving a supercharger.
Regar Karl-Nikolaus (Rebhuhnweg 3 8000 Mnchen 60 DEX), Method of operating an internal combustion engine and an internal combustion engine designed for carrying out this metho.
Regar Karl-Nikolaus (Rebhuhnweg 3 8000 Mchen 60 DEX), Method of operation an internal combustion engine and an internal combustion engine designed for carrying out this metho.
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