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[CN 201680012657.7] Hydro-mechanical suspension for vehicles
[CN 201680012657.7] Hydromechanical suspension for vehicles Title: Hydromechanical suspension for vehicles Application number: CN 201680012657.7 Applicant: Suspension Systems Co., Ltd. Application date: 2016-2-26 Patent type: Invention application suspension Including: mechanical spring (10), placed between the unsprung mass (UM) and the sprung mass (SM) of the vehicle; shock absorber (12), it is interposed between the unsprung mass (UM) and the sprung mass (SM) of the vehicle parallel to the mechanical spring (10); a hydraulic linear actuator (14) arranged in series with the mechanical spring (10); an accumulator (16); a tank (T) containing an incompressible working fluid; and a hydraulic circuit (18), it hydraulically connects the actuator (14), the accumulator (16) and the tank (T) to each other according to a predetermined operating mode. The hydraulic circuit (18) comprises a first hydraulic line (20) through which the accumulator (16) is hydraulically connected to the tank (T), a second hydraulic line (22) through which the actuator (14) is hydraulically connected to the tank (T), a third hydraulic line (24) connecting the first and second hydraulic lines (20,22) to each other, a single-stage pump (P), it is prepared as a bi-directional rotary pump and is arranged along the third hydraulic line (24); a reversible electric motor (M) coupled to the pump (P) to drive it in either direction; and a plurality of valves (V) arranged along the first and second hydraulic lines (20,22).1,V2,V3,V4,V5,Vs) In order to control the flow of working fluid between the accumulator (16), the tank (T) and the actuator (14).
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