Internal pressurized vehicle suspension strut assembly

Patent · Tue Oct 07 04:00:00 EDT 1986

OSTI ID:5041866

Hoke, R E

This patent describes pneumatically adjustable suspension strut for controlling the height of a sprung body of a vehicle comprising an outer support tube, a suspension seat on the support tube, a helical suspension spring having a lower end mounted on the seat and having an upper end operatively connected to the body of the vehicle. The suspension strut also comprises a hydraulic damper with a cylinder tube having a hydraulic fluid therein operatively mounted in the support tube, a piston mounted for reciprocating movement in the cylinder tube, a piston rod attached to the piston and extending axially in the cylinder tube and through one end thereof. The support tube is disposed around the cylinder tube and cooperating therewith to form a reservoir having a hydraulic fluid therein. A sleeve of elastomeric material has opposite ends operatively connected to the internal wall of the support tube to form a pneumatically adjustable lift spring in parallel to the helical suspension spring.

• Assignee: General Motors Corp., Detroit, MI
• Patent Number(s): US 4615512
• OSTI ID: 5041866
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330601* -- Vehicle Design Factors-- Body & Chassis
CONTROL EQUIPMENT
CYLINDERS
ELASTOMERS
EQUIPMENT
EXHAUST SYSTEMS
FLUIDS
HYDRAULIC CONTROL DEVICES
HYDRAULIC FLUIDS
MACHINE PARTS
MECHANICAL STRUCTURES
PISTONS
PNEUMATIC CONTROLLERS
POLYMERS
PRESSURE REGULATORS
PRESSURIZING
SEALS
SHOCK ABSORBERS
SPRINGS
SUPPORTS
TUBES
VEHICLES
WORKING FLUIDS