Hydraulic piston machines
AssigneeUnipat AG
InventorChristian H. Thoma
Life of this patent
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Abstract
A housing for a hydraulic piston machine comprising two shells of part-cylindrical form, the shells connectable together along a parting plane in which the rotating axis of the drive-shaft lies to contain within internal working elements of the machine. Either or both housing shells may be provided with a opening connecting the interior to the exterior of the shell(s) to provide means for fluid distribution of the machine. A non-deformable liner-element located within one or more of said openings for isolating pressurized fluid passing through the machine from coming into direct contact with the housing shells.
Claims20
In a hydrostatic piston machine of the positive displacement type, a housing having a drive-shaft for the transmission of mechanical power comprising:
- two shells connectable together along a parting-plane in which the rotating axis of said drive-shaft extends and the interior of each said shell is formed with a number of generally semi-circular recesses, respective pairs of said recesses form recesses to receive internal elements of said hydrostatic piston machine, and at least one opening is formed in at least one of said shells for intercommunicating said interior with an exterior surface of said shells;
- a non-deformable liner-element positioned within at least one of said openings and extending through said opening and preventing high-pressure fluid passing through said hydrostatic piston machine from coming into direct contact with said opening;
- and wherein said internal elements of said hydrostatic piston machine convert said mechanical power at said drive-shaft into hydraulic power passing through said non-deformable liner-element.
In a hydrostatic piston machine of the positive displacement type, a housing having a drive-shaft for the input of mechanical power which said hydrostatic piston machine converts into hydraulic fluid movement comprising:
- two shells connectable together along a parting-plane in which the rotating axis of said drive-shaft extends, said shells defining a number of generally semi-circular recesses to form recesses to receive internal elements of said hydrostatic machine and wherein at least one said shell is provided with at least one opening, said opening arranged perpendicular to said parting plane and intercommunicating the interior to the exterior of said shell;
- a pintle-valve located between said shells and including at least one pintle-port;
- at least one flange-element located on an exterior surface on one of said shells, said flange-element formed with a passageway positioned adjacent to said opening and wherein a non-deformable liner-element extends through a said opening to provide a high pressure fluid path between said pintle-port and said passageway.
In a hydrostatic piston machine of the positive displacement type, a housing having a drive-shaft for the transmission of mechanical power comprising:
- two shells connectable together along a parting-plane in which the rotating axis of said drive-shaft extends, said shells defining a number of generally semi-circular recesses forming recesses to receive internal elements of said hydrostatic machine and together defining a chamber extending transversely to the said parting-plane for receiving a cylinder-barrel in a location for rotation by said drive-shaft, the adjacent portions of said shells on one side of said location defining a mounting for said drive-shaft and the said adjacent portions of said shells on the other side of the said location defining at least one opening;
- a non-deformable liner-element positioned within at least one of said openings and extending through said opening and preventing high-pressure fluid passing through said hydrostatic piston machine from coming into direct contact with said opening;
- and wherein said internal elements of said hydrostatic piston machine convert said mechanical power at said drive-shaft into hydraulic power passing through said non-deformable liner-element.
Dependencies are inferred from the claim text.