Valve for controlling fluid flow

摘要

A main body (37) has a valve side (45) and an opposed side (46) opposite the valve side. One part of a valve body (22) protrudes through an opening (47) in the main body. A tension device (23)/flat spiral spring on the opposed side of the main body is fitted correspondingly between the opposed side of the main body and the valve body. An independent claim is also included for a filter device for cleaning crankcases.