Abstract: A fuel injector is provided with a fuel inlet, a fuel outlet, and a fuel passage for communicating fuel from the inlet to the outlet. A valve and valve seat assembly is provided for selectively preventing and permitting fuel to pass from the fuel inlet to the fuel outlet. The valve seat is defined by a tubular body and a valve seat that traverses an inside wall surface of the tubular body. An upstream face of the valve seat is downstream of an upstream end of the tubular body and a downstream face of the valve seat is upstream of a downstream end of the tubular body. At least one passage is provided through the tubular body beginning downstream of the downstream face of the valve seat and upstream of the downstream end of the tubular body. A cover may be disposed at the downstream end of the tubular body.

Abstract: A fuel injector is provided with a fuel inlet, a fuel outlet, and a fuel passage for communicating fuel from the inlet to the outlet. A valve and valve seat assembly is provided for selectively preventing and permitting fuel to pass from the fuel inlet to the fuel outlet. The valve seat is defined by a tubular body and a valve seat that traverses an inside wall surface of the tubular body. An upstream face of the valve seat is downstream of an upstream end of the tubular body and a downstream face of the valve seat is upstream of a downstream end of the tubular body. At least one passage is provided through the tubular body beginning downstream of the downstream face of the valve seat and upstream of the downstream end of the tubular body. A cover may be disposed at the downstream end of the tubular body.

Abstract: An embodiment of a component assembly for use in a mechanism includes a first member having a pair of spaced flanges with fastener receiving openings through the flanges. A second member is a hardened powdered metal part including spaced seats engaging the flanges and slots in the seats connecting with enlarged recesses. The slots and recesses have openings extending through sides of the second member. Inserts extending into the recesses through the openings have fastener engaging openings aligned with the fastener receiving openings in the flanges of the first member. Fasteners extend through the flanges and the slots to the insert openings, fixing the flanges of the first member to the seats of the second member. Exemplary assemblies are illustrated. The assemblies provide hardened wearing surfaces made from powdered metal with manufacture simplified by the fastener inserts received in openings formed parallel to the other major surfaces of the powdered metal components.

Abstract: An embodiment of a component assembly for use in a mechanism includes a first member having a pair of spaced flanges with fastener receiving openings through the flanges. A second member is a hardened powdered metal part including spaced seats engaging the flanges and slots in the seats connecting with enlarged recesses. The slots and recesses open through sides of the second member. Inserts extending into the recesses through the opening have fastener engaging openings aligned with the fastener receiving openings in the flanges of the first member. Fasteners extend through the flanges and the slots to the insert openings, fixing the flanges of the first member to the seats of the second member. Exemplary assemblies are illustrated. The assemblies provide hardened wearing surfaces made from powdered metal with manufacture simplified by the fastener inserts received in openings formed parallel to the other major surfaces of the powdered metal components.