초록 ▼

A hydraulic lash adjuster mechanism for an internal combustion engine, the adjuster having a body with a bore formed therein, a plunger slidingly received within the bore, and a high pressure chamber formed between the bottom of the bore and the plunger. The plunger has a fluid chamber formed therei

A hydraulic lash adjuster mechanism for an internal combustion engine, the adjuster having a body with a bore formed therein, a plunger slidingly received within the bore, and a high pressure chamber formed between the bottom of the bore and the plunger. The plunger has a fluid chamber formed therein to receive engine fluid through an inlet opening and is in communication with a first check valve mechanism for regulating the flow of fluid from the fluid chamber through a valve opening into a high pressure chamber. A leak path allows fluid to escape from the high pressure chamber due to increased force on the plunger. The high pressure chamber is in communication with a second check valve mechanism for allowing fluid to leak from the high pressure chamber at an increased rate in response to increased force on the plunger.

대표청구항 ▼

[ What is claimed is:] [1.] A hydraulic lash adjuster for an internal combustion engine comprising:a body having a bore formed therein said bore having a bottom;a plunger slidingly received within said bore;a high pressure chamber formed between a bottom of said bore and said plunger;a fluid chamber

[ What is claimed is:] [1.] A hydraulic lash adjuster for an internal combustion engine comprising:a body having a bore formed therein said bore having a bottom;a plunger slidingly received within said bore;a high pressure chamber formed between a bottom of said bore and said plunger;a fluid chamber within said plunger;an inlet opening for supplying engine fluid to said fluid chamber;a first valve opening in said plunger providing fluid communication between said fluid chamber and said high pressure chamber;a first check valve mechanism for selectively opening or closing said first valve opening in response to pressure differences between said fluid chamber and said high pressure chamber;a leak path allowing fluid to leak from said high pressure chamber due to increased force on said plunger;a second valve opening located in said bottom of said bore; anda second check valve mechanism for allowing fluid to leak from said high pressure chamber in response to increased force on said plunger.