Hydraulic radial piston engine
AssigneeZF Friedrichshafen AG
InventorEduard Heilig
Life of this patent
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Abstract
To avoid having to strip down a radial piston engine (1) into its individual components when it is disassembled, a rotary cylinder (5) has a collar (19) on which the rotary cylinder is supported against the cam disk (2), the cam disk (2) being rotationally fixed in position to a housing portion (13).
Claims13
A hydraulic radial piston engine (1) with a rotary cylinder (5) that rotates about a rotational axis (20), the radial piston engine (1) comprising radially arranged pistons (4) which are actively connected with a cam disk (2), and a housing portion (13) in which a hydraulic distributor (10) is arranged, the housing portion (13) being connected in a positionally fixed manner with the cam disk (2) such that the radial piston engine (1) is connected to a further housing portion (12) to produce a structural unit,
- wherein, when the radial piston engine (1) is separated from the further housing portion (12), a spring force biases the rotary cylinder (5) in a direction along the rotation axis (20), from a first position to a second position,
- the rotary cylinder (5), in the second position, either directly or indirectly engages with the cam disk (2) so as to prevent further axial movement of the rotary cylinder (5), and when the rotary cylinder (5) is in the first position, the rotary cylinder (5) counteracts the spring force so that the rotary cylinder (5) moves axially away from engagement with the cam disk (2),
- the radial piston engine (1), when in the first position, is connected to the further housing portion (12) not supported on the cam disk, and
- the cam disk (2) is located adjacent to both the housing portion (13) and the further housing portion (12) and spaces and separates the housing portion (13) from the further housing portion (12).
A hydraulic radial piston engine (1) with a rotary cylinder (5) that rotates about a rotational axis (20), the radial piston engine (1) comprising radially arranged pistons (4) which are in active connection with a cam disk (2), and a housing portion (13) in which a hydraulic distributor (10) is arranged, the housing portion (13) having a positionally fixed connection with the cam disk (2) such that the radial piston engine (1) is connected to a further housing portion (12) to produce a structural unit,
- wherein, when the radial piston engine (1) is in a separated condition in which the radial piston engine is separated from the further housing portion (12), a spring force biases the rotary cylinder (5), either indirectly or directly, in a direction along the rotation axis (20) on the housing portion (13) into engagement with the cam disk (2) so that the rotary cylinder (5) is retained with the housing portion (13) and when the rotary cylinder (5) is in the first position, the rotary cylinder (5) counteracts the spring force so that the rotary cylinder (5) moves axially away from engagement with the cam disk (2), and the cam disk (2) is located adjacent to both the housing portion (13) and the further housing portion (12) and spaces and separates the housing portion (13) from the further housing portion (12).
A hydraulic radial piston engine (1) with a rotary cylinder (5) that rotates about a rotational axis (20), the radial piston engine (1) comprising radially arranged pistons (4) which are actively connected with a cam disk (2), and a housing portion (13) in which a h draulic distributor (10) is arranged, the housing portion (13) being connected in a positionally fixed manner with the cam disk (2) such that the radial piston engine (1) is connected to a further housing portion (12) to produce a structural unit,
- wherein, when the radial piston engine (1) is separated from the further housing portion (12), a spring force biases the rotary cylinder (5) in a direction along the rotation axis (20), from a first position to a second position,
- the rotary cylinder (5), in the second position, either directly or indirectly engages with the cam disk (2) so as to prevent further axial movement of the rotary cylinder (5), and when the rotary cylinder (5) is in the first position, the rotary cylinder (5) counteracts the spring force so that the rotary cylinder (5) moves axially away from engagement with the cam disk (2),
- the radial piston engine (1), when in the first position, is connected to the further housing portion (12) not supported on the cam disk, and
- a bearing (11) and the rotary cylinder (5) are supported by a drive shaft (6), and a collar (14) and a retaining ring (16) prevent axial movement of the bearing (11) and the rotary cylinder (5) along the drive shaft (6) and thereby facilitate removal of the bearing (11), the drive shaft (6) and the rotary cylinder (5) as the structural unit.
Dependencies are inferred from the claim text.