Choke valve for automatic transmission

Abstract

A choke valve for an automatic transmission is formed from a valve hole having a circular section that runs through a valve body in its thickness direction and a columnar valve main body that is fitted in the valve hole. The valve main body has a pair of annular channels formed on the outer periphery of the valve main body at opposite ends and a small diameter section formed between the two annular channels, the small diameter section together with the valve hole forming a choke. An inlet port and an outlet port formed between two separator plates and oil channels formed on opposite faces of the valve body communicate with the pair of annular channels, respectively. Thus, the structure of the choke valve for an automatic transmission is simplified, thereby reducing the cost.

Dependencies are inferred from the claim text.