Control system and method for air compressor
First Claim
1. A compressed air device, comprising:
- a compressed air system including an oiled air compressor, the compressed-air system supplying compressed air to at least one consumer in the compressed-air system;
a control unit for controlling functioning of the air compressor, the control unit being adapted to activate the air compressor at a first predetermined pressure level for charging the compressed-air system and being adapted to deactivate the air compressor at a second predetermined pressure level; and
a drainage unit that directly drains pollutants that accumulate in the air compressor during deactivation of the air compressor, the drainage unit being arranged in the compressed-air system so that the pollutants are drained before the air compressor starts charging the compressed-air system.
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Accused Products
Abstract
In a device and a method for controlling an oiled air compressor (1), which is included in a compressed-air system (2) for a motor vehicle and which is driven by the engine (3) of the motor vehicle and supplies compressed air to at least one consumer (12) in the compressed-air system (2), provision is made of, on the one hand, a control unit (14) for controlling the function of the air compressor (1) by activating the air compressor at a lower predetermined pressure level (P1) for charging the compressed-air system and deactivating the same at a higher predetermined pressure level (P2) for relieving the air compressor, and, on the other, a drainage unit (17), which in connection with the activation of the air compressor (1) drains pollutants, which have accumulated in the air compressor during the deactivation, before the air compressor is allowed to start charging the compressed-air system (2).
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Citations
12 Claims
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1. A compressed air device, comprising:
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a compressed air system including an oiled air compressor, the compressed-air system supplying compressed air to at least one consumer in the compressed-air system;
a control unit for controlling functioning of the air compressor, the control unit being adapted to activate the air compressor at a first predetermined pressure level for charging the compressed-air system and being adapted to deactivate the air compressor at a second predetermined pressure level; and
a drainage unit that directly drains pollutants that accumulate in the air compressor during deactivation of the air compressor, the drainage unit being arranged in the compressed-air system so that the pollutants are drained before the air compressor starts charging the compressed-air system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for operating a compressed air system including an oiled air compressor comprising:
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activating the air compressor at a first predetermined pressure level for charging the compressed-air system;
deactivating the air compressor at a second predetermined pressure level; and
before the air compressor starts charging the compressed air system, directly draining pollutants that accumulate in the air compressor during deactivation in a drainage unit. - View Dependent Claims (10, 11, 12)
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Specification