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US 8,196,399 B1Granted
Hydraulic pump and motor module for use in a vehicle
AssigneeHydro-Gear Limited Partnership
InventorsRaymond Hauser, Scott W. Keller
Life of this patent
Estimating the term…
Abstract
A module for use in connection with a dual pump apparatus, where each pump is hydraulically connected to a separate hydraulic motor. The module may include motors and/or an engine for ease of installation in a vehicle, providing flexibility for different applications. Various brackets, stabilizers and other elements are provided to assist in securing the module to the vehicle.
Claims19
A hydraulic apparatus, comprising:
- an input shaft driven by a prime mover, the input shaft positioned on a first side of the hydraulic apparatus;
- a pair of hydraulic pumps driven by the input shaft, wherein the input shaft is positioned between and drives the hydraulic pumps, and wherein each of the pair of hydraulic pumps has an axis of rotation that is perpendicular to an axis of rotation of the input shaft;
- a power take off unit having an output shaft and a clutch mechanism, the power take off unit positioned on a second side of the hydraulic apparatus, opposite the first side;
- and
- an anti-rotation pin attached to the clutch mechanism to prevent the clutch mechanism from spinning;
- wherein the input shaft and the output shaft are collinear.
3 more elements
A hydraulic apparatus for use in a vehicle having a prime mover, comprising:
- a pump housing having a top surface and a bottom surface with respect to ground;
- an input shaft driven by the prime mover, the input shaft extending into the top surface of the pump housing;
- a pair of hydraulic pumps driven by the input shaft, wherein the input shaft is positioned between and drives the hydraulic pumps, and wherein each of the pair of hydraulic pumps has an axis of rotation that is perpendicular to an axis of rotation of the input shaft;
- a power take off unit having an output shaft and a clutch mechanism, the output shaft disposed collinear with the input shaft, the power take off unit positioned at the bottom surface of the pump housing;
- and
- means for preventing rotation of the clutch mechanism.
3 more elements
A hydraulic apparatus for use in a vehicle having a prime mover, comprising:
- a pump housing having a top surface and a bottom surface with respect to ground;
- an input shaft driven by the prime mover, the input shaft extending into the top surface of the pump housing;
- a pair of hydraulic pumps driven by the input shaft, wherein the input shaft drives the hydraulic pumps, and wherein each of the pair of hydraulic pumps has an axis of rotation that is perpendicular to an axis of rotation of the input shaft;
- a power take off unit disposed on the bottom surface of the pump housing, the power take off unit comprising an output shaft that is collinear with the input shaft, a clutch mechanism, and a pulley, wherein the clutch mechanism selectively connects the pulley with the input shaft;
- and
- means for preventing rotation of the clutch mechanism.
3 more elements
A hydraulic apparatus for use in a vehicle having a prime mover, comprising:
- a pump housing having a top surface and a bottom surface with respect to ground;
- an input shaft driven by the prime mover, the input shaft extending into the top surface of the pump housing;
- a pair of hydraulic pumps driven by the input shaft, wherein the input shaft is positioned between and drives the hydraulic pumps, and wherein each of the pair of hydraulic pumps has an axis of rotation that is perpendicular to an axis of rotation of the input shaft;
- a pair of hydraulic motors, each hydraulic motor being connected to one of the hydraulic pumps;
- a power take off unit having an output shaft and a clutch mechanism, the output shaft disposed collinear with the input shaft, the power take off unit positioned at the bottom surface of the pump housing;
- and
- a bracket assembly for mounting the pump housing and the pair of hydraulic motors to the vehicle, the bracket assembly comprising:
- a pump bracket attached to the pump housing;
- a first bracket member attached to one of the pair of hydraulic motors;
- a second bracket member attached to the other of the pair of hydraulic motors;
- and
- a third bracket member extending from the first bracket member to the second bracket member, wherein the first and second bracket members and the pump bracket are secured to the third bracket member.
9 more elements
Dependencies are inferred from the claim text.