Valve train for an internal combustion engine
AssigneeChrysler Corporation
InventorJose F. Regueiro
Life of this patent
Estimating the term…
Abstract
A valve train mechanism for an internal combustion engine that includes angulated intake valves and exhaust valves extending from a curved upper wall of the combustion chamber and having a cross member provided with a roller and groove arrangement for directly actuating inverted bucket tappets associated with the intake and exhaust valves.
Claims10
A valve train mechanism for an internal combustion engine having a cylinder head fixedly mounted on an engine block provided with one or more cylinders each of which has a piston reciprocally supported therein along the axial center line of the associated cylinder, a hemispherical combustion chamber in each of said cylinders of said engine and being defined by a recess in said cylinder head and the top of said piston, at least a pair of valves located in said cylinder head, each of said valves being biased into a closed position by a spring and being inclined outwardly from said combustion chamber at substantially equiangular orientation relative to said axial center line and having an inverted bucket tappet mounted on the upper end thereof, a rocker arm and a cross member for moving said pair of valves to an open position against the bias of said spring, a ball and socket connection located between said rocker arm and said cross member, and at least one roller and groove connection between said cross member and one of said inverted bucket tappets cooperating with said ball and socket connection for assuring that said cross member maintains a force applying connection with said inverted bucket tappet as said pair of valves move between said open position and said closed position.
A valve train mechanism for an internal combustion engine having a cylinder head fixedly mounted on an engine block provided with one or more cylinders each of which has a piston reciprocally supported therein along the axial center line of the associated cylinder, a hemispherical combustion chamber in each of said cylinders of said engine and being defined by a curved recess in said cylinder head and the top of said piston, a pair of exhaust valves and a pair of intake valves located in said cylinder head, each of said pair of exhaust valves and each of said pair of intake valves being inclined outwardly from said combustion chamber at substantially equi-angular orientation relative to said axial center line and having an inverted bucket tappet mounted on the upper end thereof, a first cross member for moving said pair of exhaust valves between open and closed positions and a second cross member for moving said pair of intake valves between an open position and a closed position, a first rocker arm for actuating said first cross member and a second rocker arm for actuating said second cross member, a swivel connection located between each of said rocker arms and cross members, said first cross member and said second cross member each having a roller and groove connection with at least one of the inverted bucket tappets of the associated pair of valves and cooperating with the associated swivel connection for assuring that the cross member moves in a plane passing through the longitudinal center axes of the valve stems of said associated pair of valves so as to maintain the cross member in proper alignment with the associated valves during the actuation thereof by the associated rocker arm.
A valve mechanism for an internal combustion engine having a cylinder head fixedly mounted on an engine block provided with one or more cylinders each of which has a piston reciprocally supported therein along the axial center line of the associated cylinder, a combustion chamber in each of said cylinders of said engine and being defined by a curved recess in said cylinder head and the top of said piston, said valve mechanism comprising a pair of exhaust valves and a pair of intake valves located in said cylinder head, each of said pair of exhaust valves and each of said pair of intake valves being inclined outwardly from said combustion chamber at substantially equi-angular orientation relative to said axial center line and having an inverted bucket tappet mounted on the upper end thereof, one of the tappets of said pair of exhaust valves and one of the tappets of said pair of intake valves having a groove formed therein, a first cross-member for moving said pair of exhaust valves between an open position and a closed position and a second cross member for moving said pair of intake valves between open and closed positions, a first rocker arm for actuating said first cross member and a second rocker arm for actuating said second cross member, a swivel connection located between each of said rocker arms and associated cross member, said first cross member and said second cross member each having a first end and a second end and having each of said ends supporting a roller for operatively engaging the tappets of the associated pair of valves, the arrangement being such that one of the rollers of each of said cross members is located in said groove in one of the tappets and cooperates therewith for maintaining said cross member in proper alignment with the associated valves during the actuation thereof by the associated rocker arm.
Dependencies are inferred from the claim text.