Double-piston-cylinder constant flow output method and device

A technology of output device and piston cylinder, which is applied to pump devices, components of pumping devices for elastic fluids, and liquid variable capacity machines, etc., can solve problems such as flow pulsation of gear pumps

Inactive Publication Date: 2021-11-09
WUHAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the above-mentioned technical deficiencies and provide @, which is used to solve the problem that the gear pump is prone to flow pulsation in the prior art

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  • Double-piston-cylinder constant flow output method and device
  • Double-piston-cylinder constant flow output method and device

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Embodiment Construction

[0018] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0019] see figure 1 , the present embodiment provides a @, the piston cylinder has a continuous cycle of liquid suction stroke and liquid discharge stroke, the piston cylinder discharges liquid in the liquid discharge stroke, and absorbs liquid in the liquid suction stroke, and the liquid discharge stroke includes accelerating stage, constant velocity stage and deceleration stage, the "acceleration stage", "constant velocity stage" and "deceleration stage" in this embodiment are only for the liquid discharge stroke, the acceleration stage of the piston cylinder corresponds to the deceleration stage...

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Abstract

The invention discloses a double-piston-cylinder constant flow output method. Each piston cylinder has a continuously circulating liquid suction stroke and a continuously circulating liquid discharge stroke; each liquid discharge stroke sequentially comprises an acceleration stage, a constant speed stage and a deceleration stage; the acceleration stage of one piston cylinder corresponds to the deceleration stage of the other piston cylinder, and the flow change rates of the two piston cylinders in the stage are the same; and the constant speed stage of one piston cylinder corresponds to the liquid discharge stroke of the other piston cylinder, and the sum of the liquid discharge flows of the two piston cylinders is constant at any moment. According to the double-piston-cylinder constant flow output method provided by the invention, the acceleration stage of one piston cylinder corresponds to the deceleration stage of the other piston cylinder, the constant speed stage of one piston cylinder corresponds to the liquid suction stroke of the other piston cylinder, and the flow change rates of the two piston cylinders are the same, so that the sum of the output flows of the two piston cylinders is a fixed value.

Description

technical field [0001] The invention relates to the technical field of flow control, in particular to a double-piston cylinder constant flow output method and device. Background technique [0002] The stable control of liquid flow is widely used in biomedicine, scientific research, agricultural production, semiconductor manufacturing and other fields. With the rapid rise of micro-electro-mechanical systems, fine chemicals and other industries, the stable control of small flow has become an important topic. In the continuous pipeline filament winding system, it is also necessary to realize the continuous and stable output of the small flow rate of the catalyst. However, the commonly used small flow rate gear pump is prone to flow pulsation when running at low speed for winding fault treatment, resulting in unstable flow rate and insufficient catalyst addition. Uniformly, there is still no good other solution at present. [0003] Therefore urgently need a kind of device that...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B49/00F04B23/06F04B23/02F04B17/03F04B53/10
CPCF04B49/007F04B23/06F04B23/025F04B17/03F04B53/10
Inventor 刘雪红胡志浩徐东亮潘聪张吉法吴迎峰
Owner WUHAN UNIV OF TECH
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