Patent ID: 9453436
Filing Date: 2016-09-27
CPC Classification: F01L,F02B,F02M

Claim Text:
1. An overhead-camshaft internal combustion engine having a cylinder head assembly including a cylinder head block; the engine comprising: a camshaft mounted longitudinally with respect to the cylinder head assembly, the camshaft being rotatable about a camshaft axis and having a plurality of inlet and exhaust cams for actuating associated inlet and exhaust valves of the engine; at least one fuel pump comprising a unit pump assembly driven directly by a respective pump cam provided on the camshaft, the unit pump assembly being elongate to define a pump axis; and a plurality of rocker arms driven by the inlet and exhaust cams and arranged to actuate the inlet and exhaust valves, wherein each rocker arm is pivotable about a rocker arm axis which is substantially parallel to the camshaft axis; characterised in that the cylinder head block defines a mounting surface and, the or each unit pump assembly is mounted in a sleeve fixed onto said mounting surface, and wherein the or each rocker arm is mounted on a rocker shaft mounted on the sleeve so that the or each unit pump assembly is mounted between the rocker arm axis and the cylinder head block.