Pressurizing device

A technology of a booster device and a booster cylinder, which is applied in the hydraulic field and can solve problems such as a small booster ratio
CN103470550BActive Publication Date: 2014-09-10SHANDONG UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANDONG UNIV OF SCI & TECH
Publication Date
2014-09-10

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Abstract

The invention provides a pressurizing device. The pressurizing device comprises a pressurizing cylinder and an integrated valve block, wherein the pressurizing cylinder comprises a primary piston (10), a secondary piston (20) and a cylinder tube (30), the primary piston (10) is sleeved in an inner cavity of the secondary piston (20), and the secondary piston (20) is sleeved in an inner cavity of the cylinder tube (30); the integrated valve block comprises a valve body (200), the valve body (200) is provided with an inner cavity (201), the valve body (200) is respectively provided with a through hole at two ends of the inner cavity (201), five annular through holes are radially arranged between the wall surface of the outer wall and the inner cavity (201) of the valve body (200), the inner cavity (201) is internally sleeved with a valve core (220), and a zero-opening two-position four-way reversing valve is formed in a way that the valve core (220) is matched with the inner cavity (201). Compared with a pressurizing device in the prior art, the pressurizing device provided by the invention is small in size, has no participation of an electric control system and is simple in system.
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Description

technical field

[0001] The invention belongs to the technical field of hydraulic pressure and relates to a supercharging device, in particular to a supercharging cylinder, an integrated valve block and a supercharging device thereof. Background technique

[0002] The principle of the pressurized cylinder in the general sense is to increase the proportional output of the input hydraulic oil according to the difference in the effective area of ​​the piston and the plunger. The boost ratio is equal to the inverse ratio of the piston area. This booster cylinder only performs one-stage booster conversion, and the booster ratio is a linear proportional relationship between the radial area of ​​the piston and the plunger, and does not fully utilize the space volume of the booster cylinder for boosting. In order to achieve two-way continuous supercharging, the following double-acting reciprocating superchargers have emerged, such as electromagnetic reversing valves, etc. However, ...

Claims

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