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US 10,344,884 B2Granted
Valve with a welded valve housing
AssigneeDanfoss A/S
InventorsKurt Harck, Jens Pawlik, Sigurd Larsen
Life of this patent
Estimating the term…
Abstract
A valve (1) comprising a first housing part (2) and a second housing part (3), the first housing part (2) and the second housing part (3) being made from a sheet metal material, and being joined by means of welding, preferably laser welding, to form a closed housing of the valve (1). An actuator (9) is arranged inside the housing for driving movements of a first valve member (7) and/or a second valve member (8), said actuator (9) being arranged directly in a flow of fluid flowing in the fluid flow path during operation of the valve (1). The valve (1) is hermetically sealed due to the welding of the housing parts (2, 3).
Claims20
A valve comprising:
- a first housing part and a second housing part, the first housing part and the second housing part forming a closed housing of the valve,
- an inlet connector arranged to receive fluid from a fluid flow line to an interior part of the closed housing, and an outlet connector arranged to deliver fluid to the fluid flow line from the interior part of the closed housing, a fluid flow path through the valve thereby being defined, the fluid flow path providing a fluid connection from the inlet connector to the outlet connector,
- a first valve member and a second valve member arranged inside the housing, the first valve member and the second valve member being movable relative to each other, and the first valve member and the second valve member defining a fluid passage arranged in the fluid flow path, a size of the fluid passage being determined by a relative position of the first valve member and the second valve member,
- an actuator arranged inside the housing for driving movements of the first valve member and/or the second valve member, said actuator being arranged directly in a flow of fluid flowing in the fluid flow path during operation of the valve,
- wherein the first housing part and the second housing part are made from a sheet metal material, and wherein the first housing part and the second housing part have been joined to form the closed housing by means of welding,
- wherein the first valve member, the second valve member and the actuator are assembled to form a valve cartridge, and wherein the valve cartridge is attached to the first housing part or the second housing part by means of welding.
3 more elements
A valve comprising:
- a first housing part and a second housing part, the first housing part and the second housing part forming a closed housing of the valve,
- an inlet connector arranged to receive fluid from a fluid flow line to an interior part of the closed housing, and an outlet connector arranged to deliver fluid to the fluid flow line from the interior part of the closed housing, a fluid flow path through the valve thereby being defined, the fluid flow path providing a fluid connection from the inlet connector to the outlet connector,
- a first valve member and a second valve member arranged inside the housing, the first valve member and the second valve member being movable relative to each other, and the first valve member and the second valve member defining a fluid passage arranged in the fluid flow path, a size of the fluid passage being determined by a relative position of the first valve member and the second valve member,
- an actuator arranged inside the housing for driving movements of the first valve member and/or the second valve member, said actuator being arranged directly in a flow of fluid flowing in the fluid flow path during operation of the valve,
- wherein the first housing part and the second housing part are made from a sheet metal material, and wherein the first housing part and the second housing part have been joined to form the closed housing by means of welding,
- wherein the valve further comprises a first sealing member arranged to provide sealing between the first valve member and the second valve member at an outlet side of the fluid passage, and a second sealing member arranged to provide sealing between the first valve member and the second valve member at an inlet side of the fluid passage.
3 more elements
A valve comprising:
- a first housing part and a second housing part, the first housing part and the second housing part forming a closed housing of the valve,
- an inlet connector arranged to receive fluid from a fluid flow line to an interior part of the closed housing, and an outlet connector arranged to deliver fluid to the fluid flow line from the interior part of the closed housing, a fluid flow path through the valve thereby being defined, the fluid flow path providing a fluid connection from the inlet connector to the outlet connector,
- a first valve member and a second valve member arranged inside the housing, the first valve member and the second valve member being movable relative to each other, and the first valve member and the second valve member defining a fluid passage arranged in the fluid flow path, a size of the fluid passage being determined by a relative position of the first valve member and the second valve member,
- an actuator arranged inside the housing for driving movements of the first valve member and/or the second valve member, said actuator being arranged directly in a flow of fluid flowing in the fluid flow path during operation of the valve,
- wherein the first housing part and the second housing part are made from a sheet metal material, and wherein the first housing part and the second housing part have been joined to form the closed housing by means of welding,
- wherein the second valve member is linearly movable with respect to the first valve member, and wherein the second valve member is formed with surfaces in a high pressure region in the valve so that forces acting on the surfaces of the second valve member, due to a pressure prevailing at the high pressure region in the valve, along a first direction of movement and along a second, opposite, direction of movement of the second valve member are substantially equal.
3 more elements
Dependencies are inferred from the claim text.