Patent ID: 6138625
Filing Date: 2000-10-31
Classification: F01L,F02F

Abstract:
A valve train assembly for actuating valves of an engine, comprising;an intake force receiving portion for receiving a related intake biasing force for inducing a change in an actuation of an intake valve;an intake force transmitting portion, operably connected to said intake force receiving portion, for transmitting a related intake valve actuation change force to the intake valve when said intake force receiving portion receives the intake biasing force;an exhaust force receiving portion for receiving a related exhaust biasing force for inducing a change in an actuation of an exhaust valve;an exhaust force transmitting portion, operably connected to said exhaust force receiving portion, for transmitting a related exhaust valve actuation change force to the exhaust valve when said exhaust force receiving portion receives the exhaust biasing force;wherein a first portion of said valve train assembly includes one of said intake force receiving portion and said intake force transmitting portion, and wherein a second portion includes one of said exhaust force receiving portion and said exhaust force transmission portion, said fist and second portions are related as follows:(A1) for each of said first and second portions, te portion includes a pivot part and an arm part joined together, wherein said pivot part is disposed about a corresponding pivot axis for the portion, and said arm part has a length extending from the joining together of said pivot and arm parts to a force transfer subpart of said arm part that transfers said related force between said arm part and another component of the engine;(A2) for said first and second portion at least one of the following holds:(i) each of said lengths of said arms of the first mad second portions is substantially normal to said corresponding pivot axis for each portion;(ii) said lengths of said arms are substantially in line;wherein said corresponding pivot axes for said first and second portions are coincident.