[특허]Rotary valve system and engine using the same

Rotary valve system and engine using the same 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F01L-007/00
출원번호	UP-0457114 (2006-07-12)
등록번호	US-7594492 (2009-10-12)
발명자 / 주소	Zajac, John
출원인 / 주소	Zajac Optimum Output Motors, Inc.
대리인 / 주소	Wright, Edward S.
인용정보	피인용 횟수 : 0 인용 특허 : 77

초록 ▼

Rotary valve system for controlling communication with a port in an internal combustion engine which, in one disclosed embodiment, has a crankshaft, compression and expansion pistons connected to the crankshaft for reciprocating movement within compression and expansion chambers, a combustion chamber in which air from the compression chamber is combined with fuel and burned to produce an increased gas volume. The valve system has an outer valve member which is rotatively mounted in a bore and has an opening which moves into and out of communication with the port as the outer valve member rotates, an inner valve member rotatably mounted within the outer valve member with an opening at least partly overlapping the opening in the outer valve member, a flange extending along one edge of the opening in the inner valve member and through the opening in the outer valve member for sealing engagement with the wall of the bore, and means for effecting rotation of the valve members to change the degree of overlap between the openings and thereby control the timing and duration of communication between the openings and the port.

대표청구항 ▼

The invention claimed is: 1. An internal combustion engine, comprising: a compression cylinder having a piston therein; a combustion chamber; an expansion cylinder having a piston therein; an outlet port through which gas can flow from the compression cylinder to the combustion chamber; an inlet port through which gas can flow from the combustion chamber to the expansion cylinder; a first rotary valve member having first and second openings that move into and out of communication with respective ones of the outlet and inlet ports; a second rotary valve member disposed concentrically of the first valve member and having first and second openings which at least partly overlap with the first and second openings in the first valve member; and a control for adjusting the relative rotational positions of the valve members to change the degree of overlap between the openings and thereby control the timing and duration of communication between the compression cylinder and the combustion chamber and between the combustion chamber and the expansion cylinder. 2. The internal combustion engine of claim 1 further including a crankshaft constraining the pistons for reciprocating motion within cylinders, with rotational motion being impeded to at least one of the valve members from the crankshaft. 3. An internal combustion engine comprising: an intake manifold; a compression chamber having an intake port and an outlet port; a combustion chamber; a first rotary valve member between the intake manifold end the intake port with an opening that moves into and out of communication with the intake port; and a second rotary valve member between the outlet port and the combustion chamber with an opening that moves into and out of communication with the outlet port and is smaller than the opening in the first valve member. 4. The internal combustion engine of claim 3 further including an additional rotary valve member disposed concentrically of the first valve member and having an opening that overlaps the opening in the first valve member by an amount that can be adjusted to control flow between the intake manifold and the intake port. 5. The internal combustion engine of claim 4 further comprising: an expansion chamber having an Inlet port and an exhaust port; a third rotary valve member between the combustion chamber and the inlet port with an opening that moves into and out of communication with the inlet port; and a fourth rotary valve member with an opening that moves into and out of communication with the exhaust port and is smaller than the opening in the third valve member. 6. The internal combustion engine of claim 5 wherein the first and fourth valve members are connected together, and the second and third valve members are connected together. 7. An internal combustion engine, comprising: a combustion chamber; a fuel inlet for providing fuel to be burned in the combustion chamber; a expansion cylinder with a piston therein; a crankshaft constraining the piston for reciprocating movement between top and bottom dead center positions in the expansion cylinder; a rotary inlet valve for controlling communication between the combustion chamber and the expansion cylinder having two concentrically disposed inlet valve members with overlapping openings; a rotary exhaust valve for controlling exhaust flow from the expansion cylinder having two concentrically disposed exhaust valve members with overlapping openings; a pressure sensor for detecting pressure in the expansion cylinder; and a valve control system for adjusting the relative positions of the inlet valve members to adjust the timing for opening the inlet valve during a downstroke of the piston based on the pressure detected by the pressure sensor and adjusting the relative positions of the exhaust valve members to adjust the timing for opening the exhaust valve during an upstroke of the piston based on the pressure detected by the pressure sensor. 8. An internal combustion engine, comprising: a compression cylinder with a piston therein; an expansion cylinder with a piston therein; a crankshaft interconnecting the pistons for reciprocating movement between top and bottom dead center positions in the cylinders; a combustion chamber between the compression cylinder and the expansion cylinder; a fuel inlet for providing fuel to be burned in the combustion chamber; a rotary outlet valve for controlling gas flow from the compression cylinder to the combustion chamber having two concentrically disposed outlet valve members with overlapping openings; a rotary inlet valve for controlling gas flow from the combustion chamber to the expansion cylinder having two concentrically disposed inlet valve members with overlapping openings; and a valve control system for adjusting the timing of the outlet and inlet valves by adjusting the overlap of the openings in the outlet valve members and the overlap of the openings in the inlet valve members. 9. The internal combustion engine of claim 8 wherein the valve control system adjusts the timing of the outlet valve and the inlet valve to maintain a substantially constant pressure in the combustion chamber during at least one mode of operation. 10. The internal combustion engine of claim 8 wherein the valve control system adjusts the timing of the outlet valve and the inlet valve to maintain a substantially constant pressure in the combustion chamber at a plurality of different load conditions.

이 특허에 인용된 특허 (77)

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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Rotary valve system and engine using the same 원문보기

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Rotary valve system and engine using the same 원문보기

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