Method and device for the pneumatic operation of a tool
AssigneeCargine Engineering AB
InventorMats Hedman
Life of this patent
Estimating the term…
Abstract
A device for the pneumatic operation of a tool includes a generally closed pressure fluid circuit (2), at least one compressor (5), for increasing the pressure of the pressure fluid in the circuit, the compressor (5) having an inlet and an outlet, and a tool driven by the pressure fluid in the circuit, and through which the pressure fluid is transported in the circuit from the outlet to the inlet of the compressor (5). The pressure that is generated by the compressor and the load adopted by the tool (8) are adapted such that the pressure of the returning pressure fluid downstream the tool (8) is higher than the pressure of the surrounding atmosphere.
Claims17
A method for controlling a flow of pressure fluid in a pneumatic device (1) comprising
- a generally closed pressure fluid circuit (2),
- at least one compressor (5), for increasing the pressure of the pressure fluid in the circuit, said compressor having an inlet (4) and an outlet (3),
- a tool (8) driven by the pressure fluid in the circuit, and through which the pressure fluid is transported in the circuit from the outlet (3) to the inlet (4) of the compressor, characterized in that a pressure is generated by the compressor (5) and a load at the tool (8) is controlled such that a return pressure in the circuit exceeding the surrounding pressure of the atmosphere is obtained downstream the tool (8), and in that the circuit comprises a return conduit (10), and in that a second heat exchanger (17) is used for cooling the pressure fluid present in the return conduit.
A device for the pneumatic operation of a tool, comprising
- a generally closed pressure fluid circuit (2),
- at least one compressor (5), for increasing the pressure of the pressure fluid in the circuit, said compressor (5) having an inlet (4) and an outlet (3),
- a tool (8) driven by the pressure fluid in the circuit, and through which the pressure fluid is transported in the circuit from the outlet (3) to the inlet (4) of the compressor (5), characterized in that the pressure generated by the compressor (5) and the load adopted by the tool (8) are adapted such that a return pressure of the pressure fluid downstream the tool (8) is higher than the pressure of the surrounding atmosphere, and in that it comprises a heat exchanger arranged by the return conduit (10) for the purpose of cooling the pressure fluid in the return conduit (10).
Dependencies are inferred from the claim text.