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Compressors and Refrigeration Cycles
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A technology for compressors and compression mechanisms, which is applied to the components of pumping devices for elastic fluids, mechanical equipment, machines/engines, etc., can solve problems such as reduced reliability of hermetic rotary compressors
Active Publication Date: 2019-06-04
MITSUBISHI ELECTRIC CORP
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Summary
Abstract
Description
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Problems solved by technology
As a result, the reliability of the hermetic rotary compressor decreases
Method used
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Embodiment approach 1
[0038] The configuration of the apparatus and equipment of this embodiment, the operation of the equipment of this embodiment, and the effect of this embodiment will be described in order.
[0039] Structure description
[0040] refer to figure 1 as well as figure 2 , the configuration of the refrigeration cycle device 10 as the device of the present embodiment will be described.
[0041] figure 1 The refrigerant circuit 11 during cooling operation is shown. figure 2 The refrigerant circuit 11 during heating operation is shown.
[0042] The refrigeration cycle device 10 is an air conditioner in this embodiment, but may be a device other than an air conditioner such as a refrigerator or a heat pump cycle device.
[0043] The refrigeration cycle device 10 includes a refrigerant circuit 11 through which a refrigerant circulates.
[0044]Connected to the refrigerant circuit 11 are: a compressor 12, a four-way valve 13, a first heat exchanger 14 as an outdoor heat exchanger...
Embodiment approach 2
[0112] Regarding this embodiment, differences from Embodiment 1 will be mainly described.
[0113] refer to Figure 7 The compression mechanism 30 will be described in detail.
[0114] Figure 7 and Figure 5 correspond.
[0115] As in Embodiment 1, the opening region formed in the discharge port 73 of the compression mechanism 30 has a shape in which two circles with different diameters are connected by two lines having tangent points on both sides of the two circles. Of these two circles, the larger circle is at a position facing the front end portion 63 of the compression mechanism 30 , and the smaller circle is at a position facing the middle portion 62 of the compression mechanism 30 .
[0116] In this embodiment, the above two lines are tangents of the above two circles.
[0117] In this embodiment, if Figure 7 As shown, the discharge port 73 can also be arranged between the circumference of one fastening hole 81 and the inner circumference 78 of the piston 32 whe...
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Abstract
A compressor is provided with a compression mechanism and a discharge valve. The discharge valve comprises: an affixed section affixed to the compression mechanism; a front end section for closing a discharge port (73) in an openable and closable manner, the discharge port (73) discharging a refrigerant having been compressed in a space (72) in the compression mechanism; and an intermediate section for connecting the affixed section and the front end section and closing, together with the front end section, the discharge port (73) in an openable and closable manner. The width a of the opening region of the discharge port (73) at a position facing the intermediate section of the discharge valve of the compression mechanism is less than the width b of the opening region of the discharge port (73) at a position facing the front end section of the discharge valve of the compression mechanism.
Description
technical field [0001] The invention relates to a compressor and a refrigeration cycle device. Background technique [0002] The hermetic rotary compressor includes an airtight container, a compression mechanism housed in a lower portion of the airtight container, and a motor housed in an upper portion of the airtight container to drive the compression mechanism. The compression mechanism includes a cylindrical cylinder, bearings closing the upper and lower ends of the cylinder, and an annular piston housed in the cylinder. The bearing supports the crankshaft that transmits the torque of the electric motor to the compression mechanism. A discharge port for discharging compressed gas is provided on the bearing. The piston is fitted to the eccentric portion of the crankshaft. [0003] Conventionally, there is a hermetic rotary compressor in which a discharge port of a bearing is elliptical (for example, refer to Patent Document 1). [0004] Patent Document 1: Japanese Pate...
Claims
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Application Information
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