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US 8,408,634 B2Granted
Pneumatic system
AssigneeDr. Ing. h.c. F. Porsche Aktiengesellschaft
InventorDieter Jungert
Life of this patent
Estimating the term…
Abstract
A pneumatic system has a compressor (8), a pneumatic reservoir (20) for a gaseous pressure transmission medium, at least one valve device (12) and at least one pneumatically actuable actuator (4). To provide satisfactory functioning even under extreme temperatures, and to provide a simple cost effective construction, the pneumatic reservoir (20) to which the compressor (8) is connected has a variable volume.
Claims17
A pneumatic system comprising:
- at least one pneumatically actuable actuator for actuating a movable component of a vehicle;
- a variable volume pneumatic reservoir for storing a gaseous pressure transmission medium that can be conveyed from the reservoir to the actuator or conveyed from the actuator to the reservoir;
- a compressor connected in series between the actuator and the reservoir for selectively conveying the gaseous pressure transmission medium from the reservoir to the actuator or from the actuator to the reservoir;
- a 3-way valve connected in series between the actuator and the compressor for selectively permitting the compressor to convey either a flow of the gaseous pressure transmission medium from the reservoir to the actuator or from the actuator to the reservoir and for selectively preventing a flow of the gaseous pressure transmission medium to or from the actuator.
1 more element
A motor vehicle, comprising:
- at least one movable component;
- and
- a pneumatic system for driving the movable component, the pneumatic system comprising:
- a pneumatically actuable actuator;
- a variable volume pneumatic reservoir for storing a gaseous pressure transmission medium that can be conveyed either out of the pneumatic reservoir toward the actuator or from the actuator into the pneumatic reservoir, thereby decreasing or increasing the volume of the pneumatic reservoir
- a compressor connected in series between the actuator and the pneumatic reservoir for selectively conveying the gaseous pressure transmission medium from the pneumatic reservoir to the actuator or from the actuator to the pneumatic reservoir;
- a 3-way valve connected in series between the actuator and the compressor for selectively permitting the compressor to convey either a flow of the gaseous pressure transmission medium from the pneumatic reservoir to the actuator or from the actuator to the pneumatic reservoir and for selectively preventing a flow of the gaseous pressure transmission medium to or from the actuator.
4 more elements
Dependencies are inferred from the claim text.