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Pump body and compressor

A compressor and pump body technology, which is applied to liquid fuel engines, pump components, mechanical equipment, etc., can solve the problems of not being able to eliminate all of them, single silencing frequency, etc., and achieve the effect of simple structure and extended silencing range.

Inactive Publication Date: 2014-08-13
ZHUHAI LANDA COMPRESSOR +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The gas discharged through the above-mentioned single-pipe channel 51 has a single noise elimination frequency, and when noises with multiple frequency characteristics appear, they cannot be completely eliminated

Method used

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  • Pump body and compressor
  • Pump body and compressor
  • Pump body and compressor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] figure 2 It is a partial cross-sectional view of the pump body in Embodiment 1 of the present invention, showing the improved structural parts of the present invention. Other structures of the pump body are prior art and will not be repeated here. image 3 yes figure 2 The top view of the middle and upper flange, Figure 4 yes figure 2 Bottom view of the middle and lower flange, Figure 5 yes figure 2 Top view of the upper flange end of the middle cylinder, Figure 6 yes figure 2 Bottom view of the lower flange end of the middle cylinder. Such as Figure 2-6 As shown, the pump body includes an upper flange 2, a lower flange 1 and a cylinder 3 between the upper flange 2 and the lower flange 1, the lower flange 1 has an air inlet 11, and the upper flange 2 has an air inlet 11. Corresponding air outlets 21 are opened. On the cylinder 3, between the air inlet 11 and the air outlet 21, at least two intermediate passages 31 communicating with the air inlet 11 and...

Embodiment 2

[0038] Figure 7 It is a partial sectional view of the pump body of the second embodiment of the present invention. The difference between the second embodiment and the first embodiment is that the cross-sectional areas of the two middle channels 31 are different, that is, they form a pair of double-pipe noise-absorbing channels with different expansion ratios, so that the noise reduction of two frequencies can be realized. In the case of setting more intermediate channels, multiple frequencies of noise reduction can be realized.

Embodiment 3

[0040] Figure 8 It is a partial sectional view of the pump body of the third embodiment of the present invention. Such as Figure 8 As shown, the pump body includes an upper flange 2, a lower flange 1, and a first cylinder 6 and a second cylinder 4 located between the upper flange 2 and the lower flange 1, and between the first cylinder 6 and the second cylinder 4 A partition 5 is provided, an air inlet 11 is opened on the lower flange 1, a corresponding air outlet 21 is opened on the upper flange 2, and a partition channel 51 connecting the air inlet 11 and the air outlet 21 is opened on the partition 5 , on the first cylinder 6, between the gas outlet 21 and the partition channel 51, at least two upper intermediate passages 61 communicating with the gas outlet 21 and the partition channel 51 are set, and on the second cylinder 4, between the inlet Between the gas port 11 and the partition channel 51 , at least two lower middle channels 41 communicating with the gas inlet ...

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Abstract

The invention discloses a pump body which comprises an upper flange, a lower flange and a cylinder positioned between the upper flange and the lower flange, wherein an air inlet is formed in the lower flange; a corresponding air outlet is formed in the upper flange; at least two middle channels communicated with the air inlet and the air outlet are formed in the cylinder between the air inlet and the air outlet. The invention also discloses a compressor which comprises the pump body. A plurality of middle channels are formed in the pump body and can realize the functions of a muffler, so that muffling can be well realized by a simple structure, a single-frequency or multi-frequency-band muffling effect is achieved, and the muffling range of the pump body is expanded.

Description

technical field [0001] The invention relates to a pump body and a compressor. Background technique [0002] In existing rotary compressors, such as figure 1 As shown, the pump body is usually composed of crankshaft 10, upper flange 20, upper muffler 30, roller 40, cylinder 50, lower flange 60, lower muffler 70 and other components. In the compressor with the pump body of the lower exhaust structure, the high-pressure gas is discharged from the lower exhaust port into the cavity of the lower muffler 70, and then passes through the single pipe between the lower flange 60-cylinder 50-upper flange 20 Passage 51 discharges to the upper muffler 30 or outside of the pump body. The gas discharged through the above-mentioned single-pipe channel 51 has a single noise elimination frequency, and when noises with multiple frequency characteristics appear, they cannot be completely eliminated. Contents of the invention [0003] The technical problem to be solved by the embodiments of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04C29/06F04C29/12
Inventor 杨志强
Owner ZHUHAI LANDA COMPRESSOR
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