Gasket with pushrod retainer
AssigneeDresser, Inc.
InventorsJulian R. Knudsen, Christopher B. Welch
Life of this patent
Estimating the term…
Abstract
In an engine having a rocker member adapted to rock about an axis intermediate the rocker member and a pushrod extending from a lower body to an upper body and engaging an end of the rocker member, a gasket for sealing the lower body to the upper body is provided. The gasket includes a sealing portion adapted to substantially seal at least a portion of the upper body to the lower body, and a pushrod support portion extending outwardly from the sealing portion adapted to engage the pushrod. At least a portion of the pushrod support portion engaging the pushrod is constructed from a material that is softer than the material of the pushrod.
Claims31
A gasket for sealing a lower body of an engine to an upper body of the engine, the engine having a rocker member adapted to rock about an axis intermediate the rocker member and a pushrod, the rocker member located in the upper body, the pushrod extending from the lower body to the upper body and engaging an end of the rocker member, the gasket comprising:
- a sealing portion adapted to substantially seal at least a portion of the upper body to the lower body;
- a pushrod support portion extending outwardly from the sealing portion adapted to engage the pushrod, at least a portion of the pushrod support portion engaging the pushrod is constructed from a material that is softer than the material of the pushrod;
- and
- wherein the upper body comprises a rocker box and the lower body comprises a head and the sealing portion is adapted to substantially seal at least a portion of the rocker box to the head.
A gasket for sealing a lower body of an engine to an upper body of the engine, the engine having a rocker member adapted to rock about an axis intermediate the rocker member and a pushrod, the rocker member located in the upper body, the pushrod extending from the lower body to the upper body and engaging an end of the rocker member, the gasket comprising:
- a sealing portion adapted to substantially seal at least a portion of the upper body to the lower body;
- a pushrod support portion extending outwardly from the sealing portion adapted to engage the pushrod at least a portion of the pushrod support portion engaging the pushrod is constructed from a material that is softer than the material of the pushrod;
- and
- wherein the upper body comprises a valve cover and the lower body comprises a head and the sealing portion is adapted to substantially seal at least a portion of the valve cover to the head.
A gasket for sealing a lower body of an engine to an upper body of the engine, the engine having a rocker member adapted to rock about an axis intermediate the rocker member and a pushrod, the rocker member located in the upper body, the pushrod extending from the lower body to the upper body and engaging an end of the rocker member, the gasket comprising:
- a sealing portion adapted to substantially seal at least a portion of the upper body to the lower body;
- a pushrod support portion extending outwardly from the sealing portion adapted to engage the pushrod, at least a portion of the pushrod support portion engaging the pushrod is constructed from a material that is softer than the material of the pushrod;
- and
- wherein the pushrod support portion further comprises a substantially C-shaped opening adapted to receive the pushrod and substantially support against lateral movement of the pushrod.
An engine having one or more valves operated by a pushrod, comprising:
- an engine block assembly;
- a head mounted on the engine block assembly, the head at least partially receiving the pushrod and the one or more valves,
- an upper body mounted on the head;
- a gasket between the head and the upper body, the gasket having a sealing portion adapted to substantially seal the upper body to the head and a pushrod supporting tab extending outward from the sealing portion and engaging the pushrod, at least a portion of the pushrod supporting tab engaging the pushrod is adapted to wear away when the engine is operated;
- and
- wherein the upper body is a valve cover.
An engine having one or more valves operated by a pushrod, comprising:
- an engine block assembly;
- a head mounted on the engine block assembly, the head at least partially receiving the pushrod and the one or more valves;
- an upper body mounted on the head;
- a gasket between the head and the upper body, the gasket having a sealing portion adapted to substantially seal the upper body to the head and a pushrod supporting tab extending outward from the sealing portion and engaging the pushrod, at least a portion of the pushrod supporting tab engaging the pushrod is adapted to wear away when the engine is operated;
- and
- wherein the upper body is a rocker box.
A method of assembling a portion of an engine assembly, comprising:
- placing a gasket having pushrod engaging member on a lower engine body, the pushrod engaging member adapted to wear away during operation of the engine;
- placing an elongate pushrod in the engine body and in abutting engagement with the pushrod engaging member of the gasket;
- supporting the elongate pushrod substantially perpendicular to a longitudinal axis of the elongate pushrod with the gasket;
- and
- wherein the lower engine member is an engine head.
A method of assembling a portion of an engine assembly, comprising:
- placing a gasket having pushrod engaging member on a lower engine body, the pushrod engaging member adapted to wear away during operation of the engine;
- placing an elongate pushrod in the engine body and in abutting engagement with the pushrod engaging member of the gasket;
- supporting the elongate pushrod substantially perpendicular to a longitudinal axis of the elongate pushrod with the gasket;
- and
- wherein the pushrod comprises metal and at least a portion of the pushrod engaging member comprises at least one of a polymer and a cellulosic material.
A method of assembling a portion of an engine assembly, comprising:
- placing a gasket having pushrod engaging member on a lower engine body, the pushrod engaging member adapted to wear away during operation of the engine;
- placing an elongate pushrod in the engine body and in abutting engagement with the pushrod engaging member of the gasket;
- supporting the elongate pushrod substantially perpendicular to a longitudinal axis of the elongate pushrod with the gasket;
- and
- further comprising supporting the pushrod engaging member on a support stub carried by the engine body.
A gasket for sealing a lower body of an engine to an upper body of the engine, the engine having a rocker member that engages a pushrod extending from the lower body to the upper body, the gasket comprising:
- a sealing portion adapted to substantially seal at least a portion of the upper body to the lower body;
- a pushrod support portion extending outwardly from the sealing portion adapted to engage and support the pushrod in rough alignment with an end of the rocker member prior to engaging the rocker member with the pushrod and adapted to reside out of substantial contact with the pushrod after engaging with the rocker member with the pushrod;
- and
- wherein the upper body comprises a rocker box and the lower body comprises a head and the sealing portion is adapted to substantially seal at least a portion of the rocker box to the head.
A gasket for sealing a lower body of an engine to an upper body of the engine, the engine having a rocker member that engages a pushrod extending from the lower body to the upper body the gasket comprising:
- a sealing portion adapted to substantially seal at least a portion of the upper body to the lower body;
- a pushrod support portion extending outwardly from the sealing portion adapted to engage and support the pushrod in rough alignment with an end of the rocker member prior to engaging the rocker member with the pushrod and adapted to reside out of substantial contact with the pushrod after engaging with the rocker member with the pushrod;
- and
- wherein the upper body comprises a valve cover and the lower body comprises a head and the sealing portion is adapted to substantially seal at least a portion of the valve cover to the head.
A gasket for sealing a lower body of an engine to an upper body of the engine, the engine having a rocker member that engages a pushrod extending from the lower body to the upper body, the gasket comprising:
- a sealing portion adapted to substantially seal at least a portion of the upper body to the lower body;
- a pushrod support portion extending outwardly from the sealing portion adapted to engage and support the pushrod in rough alignment with an end of the rocker member prior to engaging the rocker member with the pushrod and adapted to reside out of substantial contact with the pushrod after engaging with the rocker member with the pushrod;
- and
- wherein the pushrod support portion further comprises a substantially C-shaped opening adapted to receive the pushrod and substantially support against lateral movement of the pushrod.
A method of assembling a portion of an engine assembly, comprising:
- placing a gasket having pushrod engaging member on a lower engine body;
- placing an elongate pushrod in the engine body and in abutting engagement with the pushrod engaging member of the gasket;
- supporting the elongate pushrod substantially laterally to a longitudinal axis of the elongate pushrod member with the gasket;
- engaging the elongate pushrod with a rocker member thereby moving the elongate pushing member substantially out of engagement with the gasket;
- and
- wherein the lower engine member is an engine head.
A method of assembling a portion of an engine assembly, comprising:
- placing a gasket having pushrod engaging member on a lower engine body;
- placing an elongate pushrod in the engine body and in abutting engagement with the pushrod engaging member of the gasket;
- supporting the elongate pushrod substantially laterally to a longitudinal axis of the elongate pushrod member with the gasket;
- and
- engaging the elongate pushrod with a rocker member thereby moving the elongate pushing member substantially out of engagement with the gasket;
- and
- further comprising supporting the pushrod engaging member on a support stub carried by the engine body.
Dependencies are inferred from the claim text.