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US 11,885,542 B2Granted
Expansion valve
AssigneeSiemens Schweiz AG
InventorsAlexander Jekimow, Karl-Heinz Petry, Pascal Ernstberger, Rolf Kunzmann
Life of this patent
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Abstract
Various embodiments of the teachings herein include a valve comprising: a first port; a second port; a fluid path extending between the first port and the second port; a valve member situated in the fluid path, the valve member selectively moveable between a closed position, blocking the fluid path, and an open position; an armature coupled to the valve member and having a surface; and a solenoid forming a linear actuator with the armature. At least a portion of the surface of the armature directly faces the solenoid.
Claims10
A valve comprising:
- a housing with a first chamber for a refrigerant;
- a first port;
- a second port;
- a fluid path extending between the first port and the second port;
- a valve member situated in the fluid path, the valve member selectively moveable between a closed position, blocking the fluid path, and an open position;
- an armature coupled to and moving with the valve member and having a radially exterior surface;
- a guide member forming a bearing for movement of the armature;
- and
- a solenoid comprising a plurality of coils forming a linear actuator with the armature;
- wherein at least a portion of the radially exterior surface of the armature directly faces the solenoid;
- the solenoid is situated inside the first chamber;
- and
- the armature has a first portion situated inside the first chamber;
- and
- at least one of the plurality of coils and the first portion of the armature are directly exposed to any refrigerant in the first chamber.
12 more elements
A valve comprising:
- a housing with a first chamber for a refrigerant;
- a first port;
- a second port;
- a fluid path extending between the first port and the second port;
- a valve member situated in the fluid path, the valve member selectively moveable between a closed position, blocking the fluid path, and an open position;
- an armature coupled to and moving with the valve member and having a radially exterior surface;
- a guide member forming a friction bearing for movement of the armature;
- and
- a solenoid comprising a plurality of coils forming a linear actuator with the armature;
- wherein at least a portion of the radially exterior surface of the armature directly faces the solenoid;
- the solenoid is situated inside the first chamber;
- and
- the armature has a first portion situated inside the first chamber;
- and
- at least one of the plurality of coils and the first portion of the armature are directly exposed to any refrigerant in the first chamber.
12 more elements
Dependencies are inferred from the claim text.