RU141594U1 - HYDRO-PNEUMATIC LABYRINTH SHOCK ABSORBER MODULE - Google Patents

Abstract

1. Hydro-pneumatic labyrinth shock absorber module, comprising a two-tube plunger with a valve block fixed therein, moving in a support Teflon sleeve of the guide block, a system of four bypass valves, five hydraulic and two gas cavities, characterized in that an additional plunger is placed inside the hollow outer cylinder cylinder separating the gas cavity from the hydraulic cavity. 2. The shock absorber module according to claim 1, characterized in that a bypass valve is installed inside the hollow two-pipe plunger separating the gas cavity from the hydraulic cavity. 3. The shock absorber module according to claim 1, characterized by a forced labyrinth outflow of shock absorber fluid along a predetermined path in the cooling circuits.

Description

The utility model relates to the field of transport engineering, in particular to the designs of hydropneumatic telescopic modules designed to form elastic properties and dampen vehicle suspension vibrations.

The prototype of the utility model is a hydro-pneumatic shock absorber containing a cylinder with a valve block fixed in it with a hydraulic buffer piston, moving in a Teflon support sleeve, a hydraulic cavity divided into two parts by the valve block, a gas cavity separated from the hydraulic by a movable separator, where the role of the working piston rod performs a hollow plunger with a valve block (see patent for utility model "RU" 111221 "U1", F116F 9/19, B60G 13/08).

The technical result of the utility model is to expand the functionality of the prototype in terms of replacing the coil spring of the suspension of the elastic component of the proposed utility model with the additional exception of the compression buffer, the introduction of the labyrinth forced movement of the shock absorber fluid (hereinafter referred to as AF) along the specified cooling circuits.

The technical result is achieved by introducing into the design of the prototype two-pipe plunger and a system of additional bypass valves.

An advantageous version of the hydropneumatic labyrinth shock absorber module (hereinafter GPLAM) is presented in Figures 1 and 2.

GPLAM consists of:

- a composite tank I with a guide block 1, cylinder 2, a bottom one-way bypass valve 3, a side one-way bypass valve 4, a bypass pipe 5, a lateral gas compensation cavity W2;

- a movable two-pipe plunger II containing an outer cylinder 7, an inner cylinder 8, a valve block 9, a bypass one-way upper valve 10, a bypass one-way central valve 11, a coil spring 12 acting as a rebound buffer, an inductor 13, a filling valve 14, an upper compensation gas cavity W1;

- hydraulic cavities V1, V2, V3, V4, V5;

GPLAM works as follows:

- during compression during the movement of the two-tube plunger II (Fig. 1), part of the AZ from the cavity V3 is displaced through the throttle openings of the valve block 9 into the cavity V2 providing a damping characteristic during compression. Subsequently, the movement of the AF from the cavity V2 is divided into two directions C1 and C2. Part of the AZ moving in direction C1 enters the annular cooling channel (cavity V5), opens the upper bypass valve 10 and enters the upper compensating gas cavity W1. The level of AF in cavity V1 rises. At the same time, part of the AF from the cavity V2 moving in the direction C2, opens the side bypass valve 4 and enters the side compensation gas cavity W2. The level of shock absorber fluid (AF) in the cavity V4 rises. Due to the increase in levels of AF in the cavities V1 and V4, the volume of the gas cavities decreases, due to this, the gas pressure in the cavities W1 and W2 increases. This provides the value of the elastic characteristics of the gas part, replacing the power characteristic of compression of the suspension spring during compression.

- on the reverse stroke (tension) when moving the two-tube plunger II (Fig. 2), part of the vent from the cavity V1, under the influence of the pressure of the gas cavity W1, opens the central valve 11 and moves in the direction C3 into the cavity V2, and then, passing through the throttle openings of the valve unit 9, enters the cavity V3, while creating a damping characteristic during rebound. At the same time, part of the AF from the cavity V4 under the influence of the pressure of the gas cavity W2 moves in the direction C4 and opens the lower bypass valve 3, enters the internal cavity of the bypass tube 5 and moves in the direction C5 into the cavity V1, where it begins to participate in the movement in the direction of C3 (see above). The increase in the volume of the gas cavities W1 and W2 reduces the gas pressure in the system, which provides an elastic characteristic of the gas part, replacing the force effect of the spring opening.

The labyrinthine movement of the AF along the cooling circuits during compression and extension moves is shown in diagrams No. 1 and No. 2.

- regulation of the elastic characteristics can be carried out by supplying / discharging through the valve 14 a certain gas pressure (see graph 1) or the volume of the shock absorber fluid (see graph 2).

- damping characteristics can be controlled by the action of the magnetic field formed by the inductor 13 on the disk set system in the valve block 9. The structural design allows you to compactly place the details of the electromagnetic effects inside the cylinder 8, without affecting the working stroke of the GLAM.

USED INFORMATION SOURCES

Utility Model Patent “RU” No. 111221 “U1”, F116F 9/19, B60G 13/08 (prototype)

Claims (3)

1. Hydro-pneumatic labyrinth shock absorber module, comprising a two-tube plunger with a valve block fixed therein, moving in a support Teflon sleeve of the guide block, a system of four bypass valves, five hydraulic and two gas cavities, characterized in that an additional plunger is placed inside the hollow outer cylinder cylinder separating the gas cavity from the hydraulic cavity. 2. The shock absorber module according to claim 1, characterized in that a bypass valve is placed inside the hollow two-pipe plunger separating the gas cavity from the hydraulic cavity. 3. The shock absorber module according to claim 1, characterized by forced labyrinth outflow of shock absorber fluid along a predetermined path in the cooling circuits.

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