公开(公告)号：US3541765A

公开(公告)日：1970-11-24

申请号：US3541765D

申请日：1968-10-21

Applicant: FORD MOTOR CO

Inventor： ADLER LEONARD E ,  NELSON THOMAS A

IPC: F02M25/08 ,  F02M35/024 ,  B01D50/00

CPC classification number: F02M35/024 ,  F02M25/0854

公开(公告)号：US3575391A

公开(公告)日：1971-04-20

申请号：US3575391D

申请日：1969-03-06

Applicant: FORD MOTOR CO

Inventor： BRAUN PAUL E ,  NELSON THOMAS A ,  WESLOCK CHARLES K

IPC: F02M19/12 ,  F02M7/24

CPC classification number: F02M19/122 ,  Y10T464/50

Abstract: A rotary damper for the air valve of an air valve carburetor. The damper comprises a rotor attached to one end of the air valve mounting shaft and rotating in a viscous fluid medium that dampens air valve oscillation without affecting normal air valve operation. Lands on the rotor and the rotor housing increase the amount of damping at any given air valve opening. Each of said lands on the rotor and housing has a significant surface area. The air valve rotating the rotor from a position in which the lands are adjacent each other to a position in which the lands are removed from each other. The lands and the fluid medium providing an increased amount of damping when the lands are adjacent each other. The housing is only partially filled with the fluid medium and the land of the rotor is positioned out of the fluid and adjacent the land on the housing for an increased amount of damping.