Two-piece valve bridge

Claim 2

A multi-valve actuating bridge assembly for an internal combustion engine of the type having a cylinder head, a pair of valves including stems slidably received through guide sleeves fitted into the cylinder head, a guide rod fixed to the cylinder head and a rocker arm pivotally mounted in spaced relation from the stems of the valves, said bridge assembly including a guide having a shank slidable on the guide rod, a head engageable by the rocker arm and a semi-spherical shoulder therebetween and, a bridge comprising a web having valve stem engaging end portions, a semi-spherical saddle portion in said web intermediate said end portions, a circular aperture through said semi-spherical saddle portion of said web concentric therewith and depending sides integrally connected to said web on opposite sides thereof, said shank extending through said aperture with said web positioned so that said semi-spherical saddle portion of said bridge socketably receives said semi-spherical shoulder of said guide.

Claim 3

A valve bridge assembly for use in an internal combustion engine having a cylinder head, a pair of valves mounted in the cylinder head for parallel reciprocation between valve open and valve closed positions, individual spring means for biasing each of the valves toward its closed position, a rocker arm, a shaft extending transversely of the reciprocable axes of two adjacent valves and mounting said rocker arm for oscillatory movement relative thereto and a guide rod fixed to the cylinder head between the valves in alignment therewith, said bridge assembly including a guide having an enlarged head and a tubular shank portion extending therefrom with a semi-spherical intervening shoulder therebetween, said shank having an axial extending bore therein to be slidably received on the guide rod with said head positioned to be engaged by the rocker arm and a bridge having a web and dependent sides integrally connected to said web, an apertured semi-spherical saddle in said web on the side of said web opposite to said dependent side, said shank of said guide extending through said apertured semi-spherical saddle in said web with said semi-spherical saddle positioned to socketably receive said semi-spherical shoulder of said guide, said web being of a length whereby its end portions will each engage the stem end of one of the valves.

Claim 4

A valve bridge assembly for use in an internal combustion engine having a cylinder head, a pair of valves mounted in the cylinder head for parallel reciprocation between valve open and valve closed positions, individual spring means for biasing each of the valves toward its closed position, a rocker arm, a shaft extending transversely of the reciprocable axes of two adjacent valves and mounting said rocker arm for oscillatory movement relative thereto and a guide rod fixed to the cylinder head between the valves in alignment therewith, said bridge assembly including a guide having an enlarged head and a tubular shank portion extending therefrom with a semi-spherical intervening shoulder therebetween, said shank having an axial extending bore therein to be slidably received on the guide rod with said head positioned to be engaged by the rocker arm and a bridge having a web and dependent sides integrally connected to said web, an apertured semi-spherical saddle in said web on the side of said web opposite to said dependent side, said shank of said guide extending through said apertured semi-spherical saddle in said web with said semi-spherical saddle positioned to socketably receive said semi-spherical shoulder of said guide, said web being of a length whereby its end portions will each engage the stem end of one of the valves.

Claim 5

A valve bridge for use in the valve operating mechanism of an internal combustion engine of the type having a cylinder head, a pair of spaced apart poppet valves, each valve including a valve stem slidably received in the cylinder head to extend outward therefrom, each valve normally being held seated by a spring means associated with the valve, a guide rod fixed to the cylinder head and extending therefrom in parallel relation to the valve stems and between the valve stems and, a rocker arm for operating the valves, said valve bridge including a guide having an enlarged annular head with a reduced diameter shank extending concentrically therefrom and with an intervening semi-spherical bearing shoulder therebetween, said shank having a longitudinal bore extending from its free end whereby said guide is slidable on the guide rod with the free end of said head positioned to be engaged by the rocker arm, and a bridge having a central semi-spherical dished bearing portion formed complementary to said bearing shoulder with arms extending from opposite sides thereof and of a length for engagement with the valve stems, said bearing portion having a central aperture therethrough whereby said shank is loosely received through said central aperture of said bridge with said bearing portion of said bridge positioned to abut against said bearing shoulder of said guide and with said arms of said bridge thereby being positioned to engage the ends of the valve stems.

Claim 6

A valve bridge for use in the valve operating mechanism of an internal combustion engine of the type having a cylinder head, a pair of spaced apart poppet valves, each valve including a valve stem slidably received in the cylinder head to extend outward therefrom, each valve normally being held seated by a spring means associated with the valve, a guide rod fixed to the cylinder head and extending therefrom in parallel relation to the valve stems and between the valve stems and, a rocker arm for operating the valves, said valve bridge including a guide having an enlarged annular head with a reduced diameter shank extending concentrically therefrom and with an intervening semi-spherical bearing shoulder therebetween, said shank having a longitudinal bore extending from its free end whereby said guide is slidable on the guide rod with the free end of said head positioned to be engaged by the rocker arm, and a bridge having a central semi-spherical dished bearing portion formed complementary to said bearing shoulder with arms extending from opposite sides thereof and of a length for engagement with the valve stems, said bearing portion having a central aperture therethrough whereby said shank is loosely received through said central aperture of said bridge with said bearing portion of said bridge positioned to abut against said bearing shoulder of said guide and with said arms of said bridge thereby being positioned to engage the ends of the valve stems.