CONTROL VALVE AND ATTACHMENT STRUCTURE OF CONTROL VALVE

摘要

A control valve includes a spool formed with a fluid passage allowing a circulation of an operation fluid for switching a supply of the operation fluid to plural operation fluid supply portions, a cylindrical sleeve including plural supply and exhaust ports supplying and exhausting the operation fluid to and from the plural operation fluid supply portions and plural drain ports allowing the operation fluid returning from the plural operation fluid supply portions to drain, the sleeve slidably accommodating the spool therein, a solenoid mechanism for changing a position of the spool relative to the sleeve, and a communication portion formed on an outer periphery surface of the sleeve, the communication portion connected to plural drain ports.

主权项

1. A control valve, comprising:
a spool formed with a fluid passage allowing a circulation of an operation fluid for switching a supply of the operation fluid to plural operation fluid supply portions; a cylindrical sleeve including plural supply and exhaust ports supplying and exhausting the operation fluid to and from the plural operation fluid supply portions and plural drain ports allowing the operation fluid returning from the plural operation fluid supply portions to drain, the sleeve slidably accommodating the spool therein; a solenoid mechanism for changing a position of the spool relative to the sleeve; and a communication portion formed on an outer periphery surface of the sleeve, the communication portion connected to plural drain ports.