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US 12,180,948 B2Granted
Hydraulic pump system
AssigneeJ. C. Bamford Excavators Limited
InventorsJames Hewitt, Paul Brenner, Ravi Shankar
Life of this patent
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Abstract
A hydraulic pump system includes a housing defining a tank for containing hydraulic fluid in use; one or more pump modules each comprising a hydraulic pump for supplying hydraulic fluid from the tank to a hydraulic system; and a mounting arrangement; wherein the or each pump module is mounted to the housing by the mounting arrangement.
Claims22
A hydraulic pump system comprising:
- a housing defining a tank containing a hydraulic fluid;
- a plurality of pump modules, each of the plurality of pump modules comprising a hydraulic pump for pumping the hydraulic fluid from the tank, and a plurality of electric motors, each of the electric motors for driving a corresponding one the hydraulic pumps;
- a mounting arrangement;
- wherein each of the plurality of pump modules is mounted to the housing by the mounting arrangement;
- wherein each of the hydraulic pumps includes a pump body, a pump inlet, and a pump outlet, at least a portion of each pump body sized to fit within a corresponding aperture into the tank, such that each pump inlet, each pump outlet, and at least a portion of each pump body is disposed within the tank;
- and
- wherein each of the pump modules includes a hydraulic supply port passing through the mounting arrangement and connected to the pump outlet via a hydraulic supply line, and further wherein the hydraulic supply line is disposed within the tank but outside of the pump body.
4 more elements
A hydraulic pump system comprising:
- a housing defining an enclosed tank for containing a hydraulic fluid, the housing including a mounting plate, the mounting plate having a plurality of apertures;
- a plurality of pump modules, each of the pump modules comprising a hydraulic pump, each pump module further including an electric motor for driving a corresponding one of the hydraulic pumps;
- a controller operatively coupled to the electric motors and arranged to control a rotational speed of the electric motors;
- each of the pump modules further including a mounting portion sized and positioned to overlie and be connected to the mounting plate;
- each of the hydraulic pumps having a pump body, a pump inlet, and a pump outlet, at least a portion of each pump body sized to fit within a corresponding one of the plurality of apertures of the mounting plate, such that each pump inlet, pump outlet, and at least the portion of each pump body is disposed within the tank;
- and
- further including a hydraulic supply port passing through the housing and connected to the pump outlet via a hydraulic supply line, the hydraulic supply line disposed within the tank but outside of the pump body;
- wherein each of the pump modules can be installed or removed from the tank as a self-contained unit.
5 more elements
A hydraulic pump system comprising:
- a housing defining an enclosed tank for containing a hydraulic fluid, the housing including a plurality of apertures;
- a plurality of pump modules, each of the pump modules comprising a hydraulic pump for pumping the hydraulic fluid from the tank, each pump module including an electric motor for driving a corresponding one of the hydraulic pumps, each pump module including a flange which at least partially surrounds a corresponding one of the plurality of apertures;
- a controller operatively coupled to each of the electric motors and arranged to control a rotational speed of each of the electric motors;
- each of the hydraulic pumps including a pump body disposed at least partially in the tank through a corresponding one of the apertures in the mounting plate;
- each of the hydraulic pumps having a pump inlet and a pump outlet disposed within the tank, the pump outlet connected via a hydraulic supply line to a hydraulic supply port extending through a corresponding one of the flanges, the hydraulic supply line being disposed within the tank but outside of the pump body;
- and wherein each of the plurality of pump modules can be installed or removed from the tank as a self-contained unit with the hydraulic supply line and hydraulic supply port.
3 more elements
Dependencies are inferred from the claim text.