Caterpillar Inc.

Lloyd E Thompson

Trent A Simpson

Marvin P Schneider

Kevin Knox

Benny Ballheimer

Edwin Henry Langewisch

Michael J Smith

James Sutherland Millar

Robert C Gibson

The present disclosure relates to shimsadapted for placement between a rocker shaftand rocker shaft mounts. The rocker shaft mountsproject from the cylinder headof an internal combustion engine. The shimsare composed of a copper alloy, preferably bronze.

Rocker shaft shim

In some fuel systems, such as those associated with a diesel engine, most if not all of the air that has leaked or been introduced into the fuel system must be evacuated before the fuel injectors can work properly to start the engine. Because such systems often utilize a pressure regulating valve to maintain the fuel system at some pressure, which is often substantially higher than atmospheric pressure, it can be difficult to evacuate air without first raising the air pressure in the fuel system above that which is required to open the pressure regulating valve. In addition, evacuating air from the fuel system can sometimes involve pushing the air through the fuel injectors in order to evacuate the same to the fuel tank. A quick priming fuel system includes air bleed passages that circumvent both the pressure regulating valve and the fuel injectors so that air can be quickly evacuated from the system at a relatively low pressure. These bleed bypass passageways are relatively restrictive to liquid flow so as not to undermine system pressure or otherwise undermine fuel supply to the fuel injectors.

Quick priming fuel system and common passageway housing for same

In a hydraulic pump assembly, an annular sleeve member is radially interposed between an outer peripheral surface portion of an input shaft and an inner peripheral surface portion of a cylinder block or barrel within which are provided a plurality of piston cylinders for accommodating a plurality of pumping pistons. The outer peripheral surface portion of the input shaft includes an outer peripheral splined section, and the inner peripheral surface portion of the cylinder block or barrel includes an inner peripheral splined section. The annular sleeve member is provided with the inner peripheral splined portion for splined engagement with the outer peripheral splined portion of the input shaft and with the outer peripheral splined portion for engagement with the inner peripheral splined portion of the cylinder block or barrel. In this manner, a dual splined interconnection system is defined between the input shaft, the annular sleeve member and the cylinder block or barrel.

Double spline hydraulic pump

An improved sealing arrangement is provided for a replaceable cylinder liner The sealing arrangement includes a seal in the form of a band that is positioned in an annular groove under a flange seat of the cylinder liner The annular groove includes a first and a second undercut that provides a relief area for the seal to deflect into lessening the opportunity of damage to the seal The first and second undercuts also relieve stress in the axial direction improving the fatigue life of the cylinder liner

Sealing arrangment for a cylinder liner

At least two torque paths between a driver and a camshaft distribute dynamic torque applied to the camshaft, allowing for cancellation of undesirable torque components. The second torque path has a greater number of gears than the first torque path, and acts as a constraint on the camshaft, ameliorating discontinuities in camshaft rotation due to sudden changes in load on the camshaft.

Constraint idler

The design and manufacture of past fuel injection systems required extensive modification of the cylinder head in order to provide and actuate hydraulically actuated fuel injectors. Additionally, methods to avoid the cylinder head modifications have presented reliability concerns. The present invention overcomes these problems by providing an adapter assembly releasably connected to the cylinder head. The adapter assembly includes an adapter which has an integrally formed actuating fluid manifold and an integrally formed fuel manifold. The present invention provides a means for communicating between the actuating fluid manifold and the actuating fluid inlet passage of a hydraulically actuated fuel injector and a means for communicating between the fuel manifold and the fuel inlet passage of the fuel injector. Actuating fluid is communicated through the actuating fluid manifold and into the actuating fluid inlet passage in order to actuate the fuel injector. This results in a more reliable system which eliminates costly modifications to the cylinder head.

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Peoria, IL, United States of America

Lloyd E Thompson