Abstract: An isolation seat assembly for a fuel injector that is at least partially disposed within a stepped bore defined by a cylinder head, the stepped bore includes a land. The isolation seat assembly includes a cupped spring washer and an elastomeric ring member disposed between the cupped spring washer and the land. The isolation seat assembly operates to bias the fuel injector away from the land to substantially isolate the fuel injector from the head. The cupped spring washer and elastomeric ring member may be bonded to one another. Additionally, the isolation seat assembly may include a washer member between the elastomeric ring member and the land. The washer member operates to distribute axial forces from the fuel injector to the land. At least a portion of the washer member may be crimped into engagement with the cupped spring washer, thereby capturing the elastomeric ring member therein between.

Abstract: An isolated fuel delivery system for an internal combustion engine includes a fuel rail with a clamping method operable to retain an isolating member with respect to the fuel rail. The isolating member operates to isolate the vibratory motion of the fuel delivery system form the attachment point or points. The attachment point is typically a cylinder head of the internal combustion engine. Additionally, an isolating ring assembly is provided having a first and second stiffening member with an isolating ring member disposed therebetween. The isolating ring assembly is disposed between a fuel injector of the isolated fuel delivery system and the cylinder head. The isolating ring member operates to isolate the vibratory motion of the fuel injector from the internal combustion engine.

Abstract: A hydraulic chain tensioner assembly includes a plunger slider received within an opening in a tensioner body to define a controlled clearance and a substantially fluid-tight chamber. Pressure in a supply reservoir that is in fluid communication with the fluid-tight chamber is controlled to a relatively low level by appropriate sizing of the feed orifice and a bleed orifice in communication with the supply reservoir. Thus, apply force of a shoe connected to a plunger on a chain is a function of stiffness of a main spring that biases the plunger outward, and is not substantially affected by pressure of a fluid source supplying fluid to the reservoir. A method of manufacturing a hydraulic chain tensioner assembly is also provided.

Abstract: A connecting rod for an engine includes a connecting rod body having a pin bore formed in one end and a crank arm bore formed in an opposite end. The opposite end has a squirt hole formed therethrough with a first end of the squirt hole facing the crank arm bore and a second end of the squirt hole facing away from the connecting rod at a desired angle for squirting oil. The second end of the squirt hole has a diameter at least as large as the first end of the squirt hole. Accordingly, the squirt hole is drilled from outside the connecting rod without removing the cap.

Abstract: A connecting rod includes a connecting rod body having a crank arm bore formed in a first end and a pin bore formed in a second end. A tube is connected to the body for carrying lubricant from the first end to the second end.