Document Type and Number:
Japanese Patent JPH0243011
Kind Code:
B2
Abstract:
An adjustment device having a servomotor and arranged for rotary angle adjustment is proposed. The rotary portion is connected via a shaft with a throttle device which controls the cross section of a bypass line bypassing a throttle valve disposed in the intake tube of an internal combustion engine. The adjustment device is axially limited on one end by a cap, which is embodied as a cast part together with a portion of the bypass line. The throttle device is embodied as a rotary slide and with a control portion transversely penetrates the cap and the bypass with the control portion arranged to open the bypass to a greater or lesser extent depending on the position of the rotary slide. Between an armature of the servomotor and the rotary slide, a sealing disc is loosely guided on the shaft. As a result of a pressure drop at the sealing disc, the sealing disc can be pressed against a sealing face of the cap in order to keep the leakage air quantity as small as possible.
Application Number:
JP397581A
Publication Date:
September 26, 1990
Filing Date:
January 16, 1981
Export Citation:
International Classes:
F02D11/10; F02D9/02; F02D9/16; F02D31/00; F02M3/07; F02M69/32; F02M3/06