[특허]Scroll type refrigerant compressor

[미국특허] Scroll type refrigerant compressor 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F04B-049/00
출원번호	US-0456937 (1995-06-01)
우선권정보	JP-0122258 (1994-06-03)
발명자 / 주소	Watanabe Yasushi (Kariya JPX) Kawaguchi Masahiro (Kariya JPX)
출원인 / 주소	Kabushiki Kaisha Toyoda Jidoshokki Seisakusho (Aichi JPX 03)
인용정보	피인용 횟수 : 94 인용 특허 : 0

초록 ▼

A scroll type refrigerant compressor having an axial housing means defining a discharge chamber and a low pressure chamber around the discharge chamber, a stationary scroll , and a movable scroll. The movable scroll engages the stationary scroll and moves along a predetermined orbiting path respective to the stationary scroll. The stationary and movable scrolls define compression chambers therebetween. The stationary end plate of the stationary scroll includes a pair of relief ports for fluid communication between the compression chamber and the low pressure chamber. The compressor further comprises a valve plate in the form of a ring with a pair of valve ports. The valve plate is rotatable about the axis of the compressor between an open position where the valve port is aligned with the relief port to provide fluid communication between the compression chambers and the low pressure chamber and a closed position where the valve port separates the compression chamber from the low pressure chamber. An actuator for rotating the valve plate between the open position and the closed position in response to a refrigeration demand signal.

대표청구항 ▼

A scroll type refrigerant compressor adapted for use in a refrigerating system of an automobile in which the compressor comprises: an axial housing means forming an outer casing of the compressor and defining a refrigerant suction passage means, including a suction chamber, a discharge chamber, a low pressure chamber provided around the discharge chamber, and a passage for fluidly communicating the low pressure chamber with the suction chamber, the housing means having a longitudinal axis extending substantially at the center portion thereof; a drive shaft held within the axial housing means for rotation about the longitudinal axis; a stationary scroll means fixedly encased in the housing means and having a stationary spiral member and a stationary end plate member attached to an end of said spiral member; a movable scroll means engaged with the stationary scroll means movable in a predetermined orbiting path respective to the stationary scroll means according to the rotation of the drive shaft, the stationary and the movable scroll means defining compression chambers therebetween, the compression chambers moving from the periphery to the center of the scroll means due to the orbiting motion of the movable scroll means, the stationary end plate member including at least a relief port for fluid communication between the compression chambers and the low pressure chamber; a valve plate member in the form of a ring which includes at least a valve port and is rotatable about the axis of the housing means between an open position where the valve port is aligned with the relief port to provide fluid communication between the compression chambers and the low pressure chamber and a closed position where the compression chamber is separated from the low pressure chamber; a means for generating a refrigeration demand signal to operate the compressor; and an actuator means for rotating the valve plate member between the open position and the closed position in response to the refrigeration demand signal.

이 특허를 인용한 특허 (94) 인용/피인용 타임라인 분석

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[미국특허] Scroll type refrigerant compressor 원문보기

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