Internal gear machine with switching valves
AssigneeHydraulik Nord Technologies GmbH
InventorThomas Pippes
Life of this patent
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Abstract
The application relates to an internal gear machine for reversing duty having a housing with a chamber, in the chamber there are disposed an externally toothed pinion and an internally toothed ring gear, which mesh with one another, the rotational axes of which run parallel to and spaced apart from one another. The chamber in the housing is axially bounded and is connected via pressure pockets provided in the housing to pressure connections in the internal gear machine. According to the invention, a switching valve is arranged in each connection between the pressure pockets and the pressure connections or compression spaces, which valve opens or closes the connection.
Claims7
An internal gear machine for reversing operations, having a housing with a chamber, wherein, in the chamber, an externally toothed pinion and an internally toothed ring gear are disposed which mesh with one another, the rotational axes of which run parallel to and spaced apart from one another, wherein the chamber of the housing is axially limited, wherein, in the housing, a first pressure pocket and a second pressure pocket are located which are connected to the chamber, wherein the first pressure pocket is connected to a first pressure connection and the second pressure pocket is connected to a second pressure connection of the internal gear machine,
- wherein
- a second switching valve is arranged in the connection between the first pressure pocket and the first pressure connection and a first switching valve is arranged in the connection between the second pressure pocket and the second pressure connection, and the first pressure connection is connected to a first displacement chamber of the internal gear machine and the second pressure connection is connected to a second displacement chamber of the internal gear machine.
Dependencies are inferred from the claim text.