Valve arrangement for an expansion valve, especially for cooling units in vehicle air conditioning systems
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G05D-023/12
G05D-023/01
출원번호
UP-0208380
(2005-08-20)
등록번호
US-7624929
(2009-12-16)
우선권정보
DE-10 2004 040 649(2004-08-20)
발명자
/ 주소
Sohn, Jürgen
Leschert, Frank
출원인 / 주소
Otto Egelhof GmbH & Co. KG
대리인 / 주소
Kriegsman & Kriegsman
인용정보
피인용 횟수 :
4인용 특허 :
11
초록▼
The invention relates to a valve arrangement for an expansion valve, especially for cooling units in vehicle air conditioning systems, having a valve seat for receiving a valve-closing member, which, in a closing position, fits snugly in the valve seat and closes a passage between a coolant inlet si
The invention relates to a valve arrangement for an expansion valve, especially for cooling units in vehicle air conditioning systems, having a valve seat for receiving a valve-closing member, which, in a closing position, fits snugly in the valve seat and closes a passage between a coolant inlet side and a coolant outlet side, the valve seat or the valve-closing member having at least two zones, a first zone forming with the valve-closing member or with the valve seat, in a closing position, a sealing seat, and at least one further zone regulating a coolant mass flow flowing through the passage, and a gradient of the sealing-seat-forming zone differing from a gradient of the at least one further zone.
대표청구항▼
The invention claimed is: 1. Expansion valve, especially for cooling units in vehicle air conditioning systems, said expansion valve comprising a valve arrangement, said valve arrangement comprising a valve-closing member and a valve seat for receiving the valve-closing member such that the valve-c
The invention claimed is: 1. Expansion valve, especially for cooling units in vehicle air conditioning systems, said expansion valve comprising a valve arrangement, said valve arrangement comprising a valve-closing member and a valve seat for receiving the valve-closing member such that the valve-closing member, in a closing position, fits snugly in the valve seat and closes a passage between a coolant inlet side and a coolant outlet side, said expansion valve further comprising an actuating device which opens the valve arrangement by a lift motion of a transfer pin, wherein the valve seat or the valve-closing member has at least two zones, a first zone forming with the valve-closing member or with the valve seat, in a closing position, a seal seat, wherein the passage is closed, and at least one further zone regulating a coolant mass flow flowing through the passage, depending on the lift motion of the transfer pin and a gradient of the first zone differing from a gradient of the at least one further zone, wherein the gradient of the at least one further zone determines the mass flow in dependence on the lift motion of the valve-closing member. 2. Expansion valve according to claim 1, characterized in that the gradient of the first zone is configured to be greater than 30° and the gradient of the at least one further zone is configured to be less than 30°. 3. Expansion valve according to claim 1, characterized in that the zones are of conical, concave, convex, curved or parallel configuration, viewed in cross section. 4. Expansion valve according to claim 1, wherein the at least one further zone comprises a second zone adjoining the first zone and extending in the direction of opening of a lift motion of the valve-closing member or of the valve seat to guide the valve-closing member. 5. Expansion valve according to claim 1, characterized in that the at least one further zone has a gradient of less than 10°. 6. Expansion valve according to claim 1, characterized in that the maximal mass flow flowing through the passage is limited by a further zone of constant cross section along a predetermined length of a lift motion, which further zone is assigned to the first zone.
Cooper Richard Lloyd (Le Roy NY) Zizelman James (Honeoye Falls NY) Salemi Michael Raymond (Rochester NY) Noll Jeffrey Mark (Honeoye Falls NY) Rivera Edwin Antonio (Fairport NY), Fuel injection nozzle.
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