Patent ID: 6113063
Filing Date: 2000-09-05
Classification: F02D,F16H,F16K,Y10S

Abstract:
An actuator comprising:a first cover;a second cover, fixed to said first cover;a negative or positive pressure inlet provided on either said first cover or said second cover;a diaphragm dividing said actuator into a first room and a second room and attached between said first cover and the second cover;a retainer attached to said diaphragm;a spring attached between said first cover and said retainer or between said second cover and said retainer;a conversion mechanism converting linear motion of said retainer into rotary motion;a power rod transmitting the output of the rotary motion through said conversion mechanism to the outside; andwherein said conversion mechanism has a T-shape rod fitted in a rotatable manner to said retainer, a cylindrical outside holder fixed on a bottom surface of the second cover, having an open groove linearly formed along an axis from one end portion to the other end portion, and an inside holder with a bottom having another open groove formed in an arc shape from one end portion to the other end portion, housed in said outside holder in a rotatable manner, and the power rod fixed on the bottom.