Supercharging device and supercharging cylinder

Abstract

The invention discloses a supercharging device and a supercharging cylinder; and each of the supercharging device and the supercharging cylinder comprises a first chamber and a second chamber, which are partitioned from each other; a first piston and a second piston are arranged in each of the two chambers; moreover, the two pistons are fixedly connected with each other by a piston rod; the two chambers are both partitioned into cavities without rods and cavities with rods by the two pistons, wherein the first cavity without the rod is communicated with a supercharging medium with a first pressure; the second cavity without the rod is communicated with a supercharged medium; the second cavity with the rod is communicated with the second cavity without the rod; and the first cavity with the rod is not communicated with the first cavity without the rod; therefore, the supercharged medium has a second pressure which is larger than the first pressure. Therefore, after the supercharging process is stressed in a balanced way, the pressure ratio of the supercharged medium and the supercharging medium only depends on the ratio of effective areas of the first piston and the piston rod, so that the supercharged medium can be supercharged on a large scale. Moreover, the supercharging device and the supercharging cylinder, disclosed by the invention, have the advantages of simple structure and easiness for manufacturing.

Description

technical field [0001] The invention relates to the field of pressurization of media, in particular to a pressurization device and a pressurization cylinder. Background technique [0002] With the development of various large-scale construction machinery and construction equipment, the pressurization of working media such as hydraulic oil has become an urgent problem to be solved in this field. At present, a pressurized cylinder is usually used to pressurize the medium. The pressurized cylinder mainly includes a pressurized chamber communicating with the pressurized medium and two sets of pressurized chambers for the pressurized medium, and the pressurized medium is pressurized through the effective area ratio between the two chambers. [0003] However, due to the adoption of this method, the boosting range of the booster cylinders in the prior art is relatively small, usually one to several times; and the booster cylinders with a slightly larger booster range are either bu...

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Problems solved by technology

[0003] However, due to the adoption of this method, the boosting range of the booster cylinders in the prior art is relatively small, usually one to several times; and the booster cylinders with a slightly larger booster range are either bulky and complex in structure, or Several stages of booster cylinders are required for boosting; resulting in complex structure and high manufacturing cost

In addition, since it is difficult to achieve complete sealing between the two chambers, it is difficult to achieve pressurization between media with large differences in properties.

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