KR20080000445U - Double Action Vacuum Pump with Vacuum First Method - Google Patents

Abstract

Double Action Vacuum Pump with Vacuum First Method doubles the vacuum operation by simultaneously creating the air for both intake and intake of the piston in the cylinder. The efficiency of can be calculated.

Vacuum, Pump, Sealed, Vessel, Horizontal, Vertical, Piston, Separate, Combined    

Description

Double Action Vacuum Pump with Vacuum First Method

(Figure 1) Main Components

(Figure 2) Basic map (claim 1)

(Fig. 3) Container coupling type (claim 2)

(Fig.4) First compression start (vacuum generation)

(Figure 5) Primary compression complete and primary air intake

Fig. 6 Simultaneous action of primary air discharge and secondary air intake

(Figure 7) Simultaneous action of secondary air discharge and recompression (vacuum generation) after completion of secondary air intake

(Fig. 8) Conventional piston vacuum pump

Conventional piston-type vacuum pumps have an air suction action when the piston is operated in one direction, and the piston operation in the other direction is a process of discharging the sucked air and vacuuming once in two strokes. This happens (Figure 8).

By adding a function to create a vacuum inside the cylinder immediately before inhaling the air to be discharged, the suction or suction of the air always occurs at the same time as the exhaust, regardless of which direction the piston moves.

The present invention combines the bypass pipe so that the air inlet is connected to the inner wall of the cylinder for the inflow of the air from the vacuum container to the sealed cylinder, the air inlet connecting the air inlet pipe and the cylinder is the length of the piston from the cylinder end or its It is located at the rear with the above intervals, and the outlets for the air discharge are respectively installed at both ends of the cylinder. Check valves are provided at all inlets and outlets to control the flow of air. (Figure 2)

In the case of the coupling type that connects the pump to the lid of the vacuum sealed container, the check valve and the position of the air inlet from the container are located at the length of the piston on the cylinder wall or more, without the need of installing a bypass air pipe for air suction. Replace by machining together (Figure 3).

When the piston is compressed in the initial preparation step of FIG. 2, the check valve C3 is closed due to the internal pressure drop, and a vacuum is formed in the portion A1 (FIG. 4).

 When the piston has completely passed through the air inlet of the cylinder, the air passing through the check valve C1 moves to the vacuum area A1 due to the pressure difference (Fig. 5).

When the piston is retracted, the air collected in the area A1 is discharged to the outside of the cylinder through the check valve C3, the check valve C2 is blocked, and the air passing through the check valve C1 is moved to the A2 area. In other words, the air discharge (A1) and the suction (A2) occurs at the same time (Fig. 6).

When the compression of the piston is repeated, C1 is closed, and the air in the A2 section is discharged out of the cylinder through the check valve C2, and a vacuum is again formed in the A1 section to repeat the initial operation. (Figure 7)

According to the prior art, the air discharge and vacuum action of the piston is performed once every two strokes (lower), reducing the work efficiency.

According to the present invention, the vacuum is generated or suction for suction at the same time the air is always discharged in both directions in which the piston is moved to improve the work efficiency twice, and thus the working time can also be shortened to the previous half.

Claims (2)

Bypass the inlet pipe for air intake, which is connected to or coupled with the container to be vacuumed to the rear wall of the cylinder, at a distance of the piston length or more from the cylinder end to the rear, Therefore, one action of vacuum generation or air suction action for air suction always occurs, and the air discharge action is performed simultaneously with the vacuum generation action for air suction or air suction regardless of the operation direction of the piston. Vacuum pump capable of discharging air twice a cycle. A vacuum sealed container in which the vacuum pump of claim 1 is mounted on a lid, and the air inlet is processed at intervals of the piston length or more in the middle of the cylinder to suck and discharge air in the sealed container by reciprocating operation of the piston.

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