Integrated hydraulic transformer based on energy recovery

A technology of energy recovery and transmission, which is applied in the direction of fluid pressure actuation device, fluid pressure actuation system components, mechanical equipment, etc. It can solve the problems of engine inoperability, large volume, and high quality, and achieve the effect of improving utilization rate

Active Publication Date: 2017-09-05
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The traditional gear transmission has the disadvantages of large volume and mass
At the same time, the acceleration and deceleration of the output end are coupled with the engine, and the engine cannot work at a high efficiency point

Method used

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  • Integrated hydraulic transformer based on energy recovery
  • Integrated hydraulic transformer based on energy recovery
  • Integrated hydraulic transformer based on energy recovery

Examples

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Embodiment 2

[0037] Figure 4 It is another application example of the present invention, which is applied to the fan cooling system of construction machinery. The input shaft is connected to the engine 7 and the output shaft is connected to the cooling fan 8 of the construction machinery. When the construction machinery is working, the speed of the cooling fan is adjusted in real time according to the different working conditions. In order to make the engine work in a higher efficiency range, when the required speed of the fan is low, a part of the engine output energy drives the fan, and a part adjusts the opening of the throttle valve 3, which is stored in the hydraulic accumulator 4. When the required speed of the fan increases, part of the energy required by the fan is provided by the engine; at the same time, the energy of the hydraulic accumulator 4 is released through the adjustment of the opening degree of the throttle valve 3 and converted into mechanical energy for driving the f...

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Abstract

The invention discloses an integrated hydraulic transformer based on energy recovery. The integrated hydraulic transformer comprises a novel hydraulic transformer, an adjustable throttling valve, a hydraulic accumulator and a hydraulic oil tank, wherein the novel hydraulic transformer is provided with two oil liquid openings, an input shaft and an output shaft; the input shaft and the output shaft are driven by the transmission of a hydraulic structure; one oil liquid opening of the novel hydraulic transformer is connected with the hydraulic accumulator through the adjustable throttling valve, and the other oil liquid opening of the novel hydraulic transformer is connected with the hydraulic oil tank. According to the integrated hydraulic transformer disclosed by the invention, the functions of decelerating and accelerating can be realized; through charging and discharging of the energy of the accumulator, deceleration or acceleration of an output end is realized. Compared with a conventional hydraulic transformer, the integrated hydraulic transformer not only can realize the function of speed adjusting, but also can recover the braking energy; and the utilization rate of the energy is increased.

Description

Technical field [0001] The invention relates to a hydrostatic transmission device, in particular to an integrated hydraulic transmission based on energy recovery. Background technique [0002] The traditional gear transmission has disadvantages such as large volume and high mass. At the same time, the acceleration and deceleration of the output end are coupled with the engine, and the engine cannot work at a high efficiency point. And this device can decouple the engine and the output end, when the output end is low speed, the mechanical energy is converted into hydraulic energy and stored in the accumulator. When the system needs to accelerate, the hydraulic energy stored in the accumulator can be converted into mechanical energy, thus realizing the reuse of braking energy. Summary of the invention [0003] In view of the above-mentioned problems in the technology, the present invention proposes an integrated hydraulic transmission based on energy recovery, which can realize sp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B21/14
Inventor 王峰张浩翔迈克尔·古斯特金·斯特尔森
Owner ZHEJIANG UNIV
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