Abstract: A valve cover assembly is provided for an internal combustion engine is provided. It is advantageous to be able to access the various components of an engine valve train without disconnecting of fuel lines that supply fuel to an engine cylinder. The current disclosure provides a valve cover assembly comprising a base with a first cover and a second cover mounted thereon to provide access to the fuel lines and valve train components, respectively. The disclosed valve cover assembly allows fuel lines to be accessed and serviced without disassembly of the first cover. Likewise, the disclosed valve cover assembly allows valve train components to be accessed and services without disassembly of the second cover.

Abstract: An internal combustion engine having a valve lifter assembly is disclosed. The internal combustion engine comprising an engine head having at least two wells adapted to receive at least one valve lifter, the at least one valve lifter includes a flat surface, at least one spacer installed within the engine head having a first surface, a hollow portion, and a second surface, the first surface is tapered with respect to a vertical axis of the at least one spacer, and a tie-bar plate for coupling the at least one spacer using head bolts. The at least one spacer and the at least one valve lifter are operatively arranged during operation in such a way that the flat surface of the at least one valve lifter faces the first surface of the at least one spacer to prevent rotation of the at least one valve lifter.

Abstract: An internal combustion engine having a valve lifter assembly is disclosed. The internal combustion engine comprising an engine head having at least two wells adapted to receive at least one valve lifter, the at least one valve lifter includes a flat surface, at least one spacer installed within the engine head having a first surface, a hollow portion, and a second surface, the first surface is tapered with respect to a vertical axis of the at least one spacer, and a tie-bar plate for coupling the at least one spacer using head bolts. The at least one spacer and the at least one valve lifter are operatively arranged during operation in such a way that the flat surface of the at least one valve lifter faces the first surface of the at least one spacer to prevent rotation of the at least one valve lifter.

Abstract: A reductant dosing manifold is disclosed. The reductant dosing manifold may have a housing with a pump interface configured to directly connect the reductant dosing manifold to a reductant pump, and a reductant supply passage in fluid communication with the pump interface. The housing may also have a reductant outlet port, and a pressurized reductant passage connecting the pump interface to the reductant outlet port.

Abstract: A reductant dosing manifold is disclosed. The reductant dosing manifold may have a housing with a pump interface configured to directly connect the reductant dosing manifold to a reductant pump, and a reductant supply passage in fluid communication with the pump interface. The housing may also have a reductant outlet port, and a pressurized reductant passage connecting the pump interface to the reductant outlet port.