| 摘要 |
The lash adjuster comprises a body having a blind first bore formed in it, and a plunger slidingly received within the first bore. There is a pressure chamber formed between the bottom of the first bore and the plunger, a fluid chamber within the plunger, and a supply of hydraulic fluid within the fluid chamber. There is a valve opening in the plunger providing fluid communication between the fluid chamber and the pressure chamber, and a check valve element for selectively opening or closing the valve opening in response to The pressure difference between the fluid chamber and the pressure chamber. There is a spring device normally urging the plunger outward of the first bore, and seal device between the first bore and the plunger operable to prevent the flow of fluid between them. There is a second bore formed in the bottom of the plunger intersecting the valve opening, the check valve element being received completely within the second bore such that movement of the check valve element between an open and a closed position within the second bore is guided by the diameter of the bore. There is also a device for retaining the check valve element completely within the second bore. |
