Rotary compressor
A technology of rotary compressor and high pressure chamber, applied in rotary piston machinery, rotary piston pump, mechanical equipment, etc., can solve the problems of large refrigerant flow resistance and low efficiency, and achieve the effect of improving efficiency
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no. 1 example
[0042] Figure 4 The overall structure of the rotary compressor 1 related to the first embodiment of the present invention is shown.
[0043] This rotary compressor 1 has a structure in which an electric motor 3 is provided in the upper part of the airtight casing 2, and a compression member 4 is provided below the electric motor 3, and is driven by the rotation of the drive shaft 5 protruding from the electric motor 3. Drive the above-mentioned compression unit 4.
[0044] This compression component 4 is equipped with a cylinder 6 with a cylinder chamber 6a inside, a front support cover 7 and a rear support cover 8, which are arranged on the upper and lower open ends of the cylinder 6 and constitute side support covers that close the upper and lower open ends, and are rotatable The piston 9 is installed in the above-mentioned cylinder chamber 6a. In addition, the lower side of the above-mentioned drive shaft 5 is supported by bearing parts provided on the respective support cove...
no. 2 example
[0071] The following will be based on Figure 6 and Figure 7 The second embodiment of the present invention will be explained.
[0072] In the second embodiment, the arrangement position of the notch portion is changed, and the guide portion 4A is formed by a pair of notch portions 61 formed on the piston 9.
[0073] I.e. Figure 6 and Figure 7 As shown, the semicircular portion of each discharge port 22 that opens in the high-pressure chamber 35 is at a position substantially coincident with the piston 9 at the end position of the piston 9 in one revolution.
[0074] In addition, cutting the outer peripheral edge portion of the piston 9 corresponding to the overlapping portion of the discharge port 22 constitutes the above-mentioned notch portion 61.
[0075] The structure other than the notch 61 is the same as figure 1 The case of the embodiment is the same, and the description thereof is omitted when the same reference numerals are used to denote the same components.
[0076...
no. 3 example
[0080] The following is based on Figure 8 and Picture 9 The third embodiment of the present invention will be explained.
[0081] In this third embodiment, the position and shape of the notch is changed, and a pair of notch 71 formed by bridging the cylinder 6, the swing bush 32 and the piston 9 constitutes the guide 4A. That is, the guide is figure 1 and figure 2 The first embodiment is the same as Figure 6 and Figure 7 The combined structure of the second embodiment.
[0082] Specifically, such as Figure 8 and Picture 9 As shown, each discharge port 22 is of such a structure that the semicircular part coincides with the swing bush 32 on the side of the high pressure chamber 35 and the cylinder 6, and the other semicircular part directly opening in the high pressure chamber 35 is at the end position of the piston 9 revolution. The upper part roughly coincides with the piston 9.
[0083] In addition, the outer peripheral edge portion of the swing bush 32 and the inner peri...
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