Patent ID: 8720409

Claim:
An oil squirter comprising: a valve including a valve body and a piston assembly, wherein: the valve body includes: an inlet port configured to be in fluid communication with an oil source characterized by a source oil pressure; a valve cylinder defining a valve seat and configured to receive the piston assembly; and the piston assembly includes: a piston guide defining an axial chamber configured to receive a biasing element, wherein the chamber contains oil; a piston having a first end and a second end, the piston in slidable contact with the piston guide; the biasing element in operative contact with the chamber and the first end of the piston and configured to bias axial movement of the piston toward the valve seat to close the valve when the source oil pressure is below a predetermined pressure; the second end of the piston in fluid communication with the inlet port and configured to selectively form a sealing interface with the valve seat; the oil source in fluid communication with the second end of the piston and exerting the source oil pressure on the piston to actuate the piston to axially move away from the valve seat to open the valve when the source oil pressure is at or above the predetermined pressure; and a damping vent in fluid communication with an atmosphere and the chamber and configured to create delta pressure in the oil in the chamber to stabilize the axial movement of the piston to prevent axial oscillation of the piston during valve opening and closing.