Pump having a flow guide device between at least one pressure plate and a housing
AssigneeMagna Powertrain Bad Homburg GmbH
InventorThomas Dippel
Life of this patent
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Abstract
A pump, particularly a vane-type pump, including a rotor guiding at least one vane and resting against at least one pressure plate, which has at least one pressure through-hole and at least one under-vane through-hole, the holes being connected to a pressure outlet provided in a housing of the pump or in a transmission housing. In between the pressure plate and the housing a flow guide device is arranged, which delimits a fluid path from the pressure through-hole past the under-vane through-hole to the pressure outlet.
Claims18
A pump comprising a rotor carrying at least one vane and resting against at least one pressure plate, the at least one pressure plate having at least one pressure passage hole and at least one under-vane passage hole, the at least one pressure passage hole and the at least one under-vane passage hole communicating with a pressure outlet provided in a housing of the pump, wherein a flow guide device is disposed between the at least one pressure plate and the housing within the at least one pressure plate, the flow guide device bounding a fluid path from the at least one pressure passage hole past the at least one under-vane passage hole to the pressure outlet.
A pump comprising a rotor carrying at least one vane and resting against at least one pressure plate, the at least one pressure plate having at least one pressure passage hole and at least one under-vane passage hole, the at least one pressure passage hole and the at least one under-vane passage hole communicating with a pressure outlet provided in a housing of the pump, wherein a flow guide device is disposed between the at least one pressure plate and the housing, the flow guide device bounding a fluid path from the at least one pressure passage hole past the at least one under-vane passage hole to the pressure outlet,
- wherein the flow guide device is a diaphragm spring clamped between the at least one pressure plate and the housing,
- wherein the diaphragm spring is slotted at a radially outer periphery of the spring.
A pump comprising a rotor carrying at least one vane and resting against at least one pressure plate, the at least one pressure plate having at least one pressure passage hole and at least one under-vane passage hole, the at least one pressure passage hole and the at least one under-vane passage hole communicating with a pressure outlet provided in a housing of the pump, wherein a flow guide device is disposed between the at least one pressure plate and the housing, the flow guide device bounding a fluid path from the at least one pressure passage hole past the at least one under-vane passage hole to the pressure outlet,
- wherein the flow guide device is a diaphragm spring clamped between the at least one pressure plate and the housing,
- wherein the diaphragm spring is flattened at the radially outer periphery of the spring.
A pump comprising a rotor carrying at least one vane and resting against at least one pressure plate, the at least one pressure plate having at least one pressure passage hole and at least one under-vane passage hole, the at least one pressure passage hole and the at least one under-vane passage hole communicating with a pressure outlet provided in a housing of the pump, wherein a flow guide device is disposed between the at least one pressure plate and the housing, the flow guide device bounding a fluid path from the at least one pressure passage hole past the at least one under-vane passage hole to the pressure outlet,
- wherein the flow guide device is a diaphragm spring clamped between the at least one pressure plate and the housing,
- wherein the diaphragm spring has at least one passage hole.
Dependencies are inferred from the claim text.