Split and brazed powdered metal valve body
AssigneeGM Global Technology Operations LLC
InventorRobert Alan Dziurda
Life of this patent
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Abstract
A valve body assembly for use in an automotive transmission is provided. The valve body assembly includes a first valve body part formed of powdered metal and a second valve body part formed of powdered metal. The first valve body part is attached to the second valve body part by a brazed joint. A method of forming a valve body assembly is also provided. The method includes forming a first valve body part from powdered metal, forming a second valve body part from powdered metal, and sinter brazing the first and second valve body parts together to form a brazed joint between the first and second valve body parts.
Claims20
A valve body assembly for use in automotive transmission, the valve body assembly comprising:
- a first valve body part formed of powdered metal;
- and
- a second valve body part formed of powdered metal, the first valve body part being attached to the second valve body part by a brazed joint.
A valve body assembly for use in an automotive transmission, the valve body assembly comprising:
- a first valve body part formed of an aluminum powdered metal;
- and
- a second valve body part formed of an aluminum powdered metal, the first valve body part being directly attached to the second valve body part by a brazed joint that is formed by sinter brazing, the brazed joint being formed from at least one of foil, a stamped insert, and paste, the first and second valve body parts forming a main web of the valve body assembly, the valve body assembly having a plurality of channels formed therethrough for directing transmission fluid.
A method of forming a valve body assembly, the method comprising:
- forming a first valve body part from powdered metal;
- forming a second valve body part from powdered metal;
- and
- sinter brazing the first and second valve body parts together to form a brazed joint between the first and second valve body parts.
Dependencies are inferred from the claim text.