Integrated displacement controlled pump
a hydraulic pump and integrated technology, applied in the direction of machines/engines, positive displacement liquid engines, liquid fuel engines, etc., can solve the problems of unsuitable for certain applications, unsuitable for hydraulic fluid systems, bulky and costly configurations, etc., and achieve compact configuration and improve the effect of the conventional pump system configuration
Inactive Publication Date: 2017-06-29
PARKER HANNIFIN CORP
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- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Benefits of technology
The present invention provides an improved motor-controlled hydraulic pump system that is more compact and suitable for a wider range of applications compared to conventional configurations. The system includes a single shaft that operates as the motor output shaft and the pump input shaft, and a mounting accessory supports the pump and the motor. The integrated design and assembly configuration allows for the use of a single shaft and simplifies construction, assembly, and alignment. The electric motor may be any suitable type and the pump may be any suitable hydraulic pump. The technical effect of the invention is to provide a more efficient, compact, and versatile motor-controlled hydraulic pump system.
Problems solved by technology
Reducing size has often proven difficult.
Such conventional configuration, including a motor with an output shaft, spacer, coupling shaft, and hydraulic pump with a shaft has resulted in a bulky and costly configuration that may be unsuitable for certain applications in which a more compact design is desirable.
Accordingly, hydraulic fluid systems have not been employed to their full potential.
Method used
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Embodiment Construction
[0016]Embodiments of the present invention will now be described with reference to the drawings, wherein like reference numerals are used to refer to like elements throughout. It will be understood that the drawings are not necessarily to scale.
[0017]FIGS. 1 and 2 provide generalized schematic representations of exemplary hydraulic pump systems. FIGS. 1 and 2 are schematic drawings respectively depicting exemplary pump systems 10 and 12. In the embodiments of FIGS. 1 and 2, each of the pump systems 10 and 12 is a drive controlled pump system that includes a drive controller 14 that electronically controls a motor 16. The motor 16 may be an electric motor and may be any suitable electric motor type. For example, the electric motor may be an induction, permanent magnet, switched reluctance, or other electric motor type, and the motor may be an alternating current (AC) or direct current (DC) motor.
[0018]A user controls operation of the motor 16 by actuating the drive controller 14, whi...
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A pump system includes a motor, a pump, and a single shaft extending from the motor into the pump, the single shaft being configured to operate simultaneously as both a motor output shaft and a pump input shaft. A first end of the single shaft interacts with the motor, and a second end of the single shaft interacts with the pump, to configure the shaft to operate as the motor output shaft and the pump input shaft. The pump system further may include a mounting accessory configured to support the motor and the pump. The motor may be an electric motor, and the pump may be a hydraulic pump. A drive controller is configured to generate commands for controlling the electric motor, which in turn drives the pump to achieve a desired flow of hydraulic fluid.
Description
FIELD OF INVENTION[0001]The present invention relates to control of hydraulic fluid systems, and more particularly to electronically controlled hydraulic pumps and motors.BACKGROUND OF THE INVENTION[0002]Hydraulic fluid systems are utilized to generate power in a variety of industries. Mining and drilling equipment, construction equipment, motor vehicle transmission systems, and various other industrial applications employ such hydraulic systems.[0003]A hydraulic fluid system may be employed to drive an external device, such as a wheel shaft, a fan, or other like external device. In hydraulic control, a hydraulic motor receives control signals, and based on such control signals a motor output shaft drives a hydraulic pump. The hydraulic pump in turn pumps hydraulic fluid for driving an external device. The driving of the external device is regulated through the control of hydraulic fluid flow through the system. Control of hydraulic fluid flow typically is performed in part by motor...
Claims
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Patent Timeline
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IPC IPC(8): F04B49/20F04B49/12F04C14/18F04C2/344F04C2/10F04B19/22F04B17/03F04C14/08
CPCF04B49/20F04B17/03F04B49/12F04C14/08F04C2240/40F04C2/10F04B19/22F04C14/18F04C2/344F04B49/06F04B53/22F04C11/00F04C15/00F04C2270/205F04C2270/18F04C2240/80
Inventor BUBLITZ, ROLANDGOUPY, BLAISE
Owner PARKER HANNIFIN CORP