COMBINATION SUSPENSION Russian patent published in 2000 - IPC

FIELD: automotive industry; independent suspension hydraulic systems. SUBSTANCE: device has additional pipelines connecting like spaces A and B of shock absorbers into two hydraulic circuits rigidly coupled by shock absorber pistons and providing vertical displacement of vehicle body independent of road obstacle with reduced fore-and-aft and lateral tilting with killing of body vibrations by throttles owing to creating of common hydrostatic transmission. Provision of paired inertia valve precludes fore-and-aft tilting of body at hard braking, and use of pump hydraulically coupled by its spaces A and B with circuits with reversible electric drive, its control unit with steering wheel turning pickup and electromagnetic valve on pipeline connecting compression stroke spaces A of shock absorbers at lift-hand and right-hand sides of vehicle makes it possible to change road clearance, ensure tilting of body at cornering to side of turning in proportion to turning of steering wheel, and negotiate steep slopes without loss of side stability. It facilitates also changing of wheel making it possible to dispense with hand jack. Provision of balancing valve on pipeline inter connecting the circuits prevents hi-jacking of vehicle, as circuits are to be placed into communication by means of special key. Shock absorbing and vibration damping of body provided by suspension do not depend on operation of pump, electric drive, control unit with pickup and electromagnetic valve. EFFECT: provision of individual adjustment of suspension rate, facilitated changing of wheel, provision of stability at cornering and negotiating steep slopes, prevention of hi-jacking. 7 cl, 7 dwg