Oil pressure lash adjuster equipped with air vent
AssigneeNittan Valve Co., Ltd.
InventorShigetada Takahashi
Life of this patent
Estimating the term…
Abstract
An internal combustion engine with oil pressure rush adjustable valve actuating mechanism has a cylinder head having a lash adjuster mounting hole with an upper opening, an oil gallery formed on an inner circumference of the lash adjuster mounting hole for supplying an actuating oil, an oil pressure lash adjuster having a lash adjuster main body inserted in the lash adjuster mounting hole and a plunger located in the lash adjuster main body and lockable by the actuating oil supplied from the oil gallery, a valve actuating member having a swingable rocker arm arranged so that the lash adjuster main body forms a supporting point for swinging of the rocker arm and an air vent communicating a lower end portion of the lash adjuster mounting hole with the oil gallery.
Claims7
An internal combustion engine with oil pressure lash adjustable valve actuating mechanism, comprising a cylinder head having a lash adjuster mounting hole with an upper opening;
- an oil gallery formed on an inner circumference of said lash adjuster mounting hole for supplying an actuating oil;
- an oil pressure lash adjuster having a lash adjuster main body inserted in said lash adjuster mounting hole and a plunger located in said lash adjuster main body and lockable by the actuating oil supplied from said oil gallery;
- a high pressure chamber located at a lower portion of said main body to receive said actuating oil;
- a valve actuating member having a swingable rocker arm arranged so that said lash adjuster main body forms a supporting point for swinging of said rocker arm;
- and an air vent communicating a lower end portion of said lash adjuster mounting hole with said oil gallery, said air vent being provided at an outer circumference of said adjuster main body.
An internal combustion engine with oil pressure lash adjustable valve actuating mechanism, comprising a cylinder head having a lash adjuster mounting hole with an upper opening;
- an oil gallery formed on an inner circumference of said lash adjuster mounting hole for supplying an actuating oil;
- an oil pressure lash adjuster having a lash adjuster main body inserted in said lash adjuster mounting hole and a plunger located in said lash adjuster main body and lockable by the actuating oil supplied from said oil gallery;
- a high pressure chamber located at a lower portion of said main body to receive said actuating oil;
- a valve actuating member having a swingable rocker arm arranged so that said lash adjuster main body forms a supporting point for swinging of said rocker arm;
- and an air vent communicating a lower end portion of said lash adjuster mounting hole with said oil gallery, said air vent is formed as a through hole provided in said adjuster main body below said recessed groove.
Dependencies are inferred from the claim text.