CONTROLLER FOR TENSION OF DRIVING BELT Russian patent published in 1995 - IPC

FIELD: mechanical engineering. SUBSTANCE: controller has dismountable housing. Two diaphragms are clamped between the parts of the housing. One of the diaphragms is connected with the tension rod which slides inside the housing and is coupled with the tension roller. The other diaphragm is coupled with the spring-loaded rod of the slide valve mounted for movement inside the case of the slide valve. The rod control pressure inside the space between the diaphragms. The space between the diaphragms is in communication with a source of compressed fluid through a slide valve unit. The housing of the slide valve unit is made in block with the housing of the controller. The rod has dummy axial bore connected with through lateral bore. EFFECT: enhanced reliability. 2 cl, 1 dwg