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US 7,347,047 B1Granted
Pump assembly
AssigneeHydro-Gear Limited Partnership
InventorRaymond Hauser
Life of this patent
Estimating the term…
Abstract
A dual pump apparatus for use on a vehicle or industrial application having a housing in which a pair of hydraulic pumps are mounted and driven by a prime mover. The prime mover is drivingly coupled to a main input shaft, which drives the hydraulic pumps. An auxiliary pump may be drivingly coupled to the main drive shaft and a power take off unit may also be connected thereto. The power take off unit may be driven by a power take off unit output drive shaft, on which a cooling fan may be attached.
Claims20
A pump apparatus comprising:
- an end cap;
- a first hydraulic pump supported on the end cap and driven by a first pump shaft;
- a second hydraulic pump supported on the end cap and driven by a second pump shaft, wherein the second pump shaft is generally parallel to the first pump shaft;
- an input shaft drivingly connected to the first and the second pump shafts and oriented generally parallel to the first pump shaft, wherein the input shaft has a first end, which extends from the pump apparatus and is coupled to a prime mover, and a second end opposite the first end;
- and
- a power take off shaft extending into the end cap.
3 more elements
A pump apparatus comprising:
- an end cap;
- a first pump supported on the end cap and driven by a first pump shaft;
- a second pump supported on the end cap and driven by a second pump shaft;
- an input shaft extending into the pump apparatus and drivingly engaged to the first and the second pump shafts, wherein the input shaft has a first end, which is external to the pump apparatus, and a second end;
- and
- a power take off drive engaged to the end cap and comprising a power take off shaft;
- wherein the first pump shaft, the second pump shaft, the input shaft and the power take off shaft are generally parallel.
4 more elements
A pump apparatus comprising:
- an end cap;
- an input shaft;
- a first pump shaft driven by the input shaft;
- a second pump shaft driven by the input shaft;
- and
- a power take off shaft selectively driven by the input shaft;
- wherein the input shaft, the first pump shaft, the second pump shaft and the power take off shaft extend at least partially into the end cap.
4 more elements
Dependencies are inferred from the claim text.