Abstract:
A slide member of the present invention is used in a slide unit which is included in a refrigerant compressor for compressing a refrigerant and provided inside a sealed container which reserves lubricating oil therein. The slide member is provided with an oxide coating film on a surface of a base material. The oxide coating film is configured such that (1) when the base material comprises an iron based material, the oxide coating film has a three-layer structure including a first layer comprising Fe 2 O 3 , a second layer comprising Fe 3 O 4 , and a third layer comprising FeO in this order from an outermost surface, (2) the oxide coating film has a dense structure having minute concave/convex portions with a height difference which falls within a range of 0.01µm to 0.1 µm, or (3) when the base material comprises the iron based material, the oxide coating film has a three-layer structure in which the three layers comprise the iron oxides and are different in hardness.
Abstract translation:本发明的滑动构件用于包含在用于压缩制冷剂的制冷剂压缩机中并设置在其内保留润滑油的密封容器内的滑动单元中。 滑动构件在基材的表面上设置有氧化物涂膜。 氧化膜被构造为:(1)当基材包含铁基材料时,该氧化物涂膜具有三层结构,其包括包含Fe 2 O 3的第一层,包含Fe 3 O 4的第二层, 和从最外表面依次包含FeO的第三层,(2)氧化皮膜具有致密结构,其具有微小的凹凸部,其高度差落在0.01μm〜0.1μm的范围内,或(3 )当基材包含铁基材料时,氧化物涂膜具有三层结构,其中三层包含铁氧化物并且硬度不同。
Abstract:
According to a compressor of the present invention, the compressor further comprises an oil separating mechanism 40 which separates oil from the refrigerant gas discharged from the compressing mechanism 10, the oil separating mechanism 40 includes a cylindrical space 41 in which the refrigerant gas orbits, an inflow portion 42 for flowing the refrigerant gas discharged from the compressing mechanism 10 into the cylindrical space 41, a sending-out port 43 for sending out, from the cylindrical space 41 to the one container space 32, the refrigerant gas from which the oil is separated, and an exhaust port 44 for discharging the separated oil from the cylindrical space 41 into the other container space 32. According to this configuration, efficiency of the electric motor 20 is enhanced, volumetric efficiency is enhanced, and low oil circulation is realized.
Abstract:
PROBLEM TO BE SOLVED: To solve the problem that a fixed scroll is locally brought into contact with a slewing scroll by the pressure deformation of the slewing scroll to thereby deteriorate capability, increase input, and further cause seizure. SOLUTION: A clearance is formed between the lap tip 13c of the slewing scroll 13 and the lap groove bottom surface 12d of the fixed scroll 12. The end plate 13a of the slewing scroll 13 is formed to have different thickness in a peripheral part 13o, an intermediate part 13m, and a boss inner peripheral part 13i. A seal member 78 is arranged on a slewing scroll back surface 13e corresponding to the intermediate part 13i. A rotation restraint mechanism 14 is arranged on the slewing scroll back surface 13e corresponding to the peripheral part 13o. Thereby, pressure deformation is suppressed. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To solve the problem that since dimensional change occurs by thermal expansion, the lap upper surface part of a fixed scroll comes into contact with the lap bottom surface part of a slewing scroll to thereby cause seizure. SOLUTION: A communication hole 31 leading from a high pressure area 30 to a compression chamber 15 is formed in the end plate 13a of the slewing scroll 13, and the communication hole 31 is made to face only one compression chamber of compression chambers 15a (or 15b) formed on both sides of the lap 12b of the fixed scroll 12. Thereby, oil can be directly supplied to a portion easily causing the seizure. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To increase the reliability of a fixed scroll and a rotary scroll of a scroll compressor to match the compressor to recent refrigerating air conditioners increased in efficiency and life and using a high-pressure refrigerant such as carbon dioxide. SOLUTION: The thickness H of an end plate of the rotary scroll 13 on the inside of a bearing housing part 13c is 10-35% of the inner diameter D of the bearing housing part 13c. When the scroll compressor is under high load, the tooth bottom of the end plate 13a of the rotary scroll 13 corresponding to the bearing housing part 13c and the winding start part at the lap end 12b of the fixed scroll 12 are deformed, and also the winding start part of the fixed scroll 12 is heated, and thermally expanded to the rotary scroll 13 side. However, since the tooth bottom of the end plate 13a of the rotary scroll 13 on the inside of the bearing housing 13c is flexibly deformed to the end 12b of the fixed scroll 12 by pressure, nonuniform contact does not occur, and the high reliability of the scroll compressor can be realized. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To increase the reliability of a fixed scroll and a rotary scroll of a scroll compressor and also increase the efficiency of the scroll compressor by reducing leakage loss to match the compressor to recent refrigerating air conditioners increased in efficiency and life and using a high-pressure refrigerant such as carbon dioxide. SOLUTION: A spiral seal member 80 is attached to a winding start part of the spiral lap end 12b of the fixed scroll 12. When the scroll compressor is under high load, the tooth bottom of the end plate 13a of the rotary scroll 13 and the winding start part of the lap end 12b of the fixed scroll 12 are deformed, and the winding start part of the fixed scroll 12 is heated and thermally expanded to the rotary scroll 13 side. However, since the seal member 80 is attached to the end of the winding start lap 12b of the fixed scroll 12, nonuniform contact does not occur, and high reliability can be realized. COPYRIGHT: (C)2009,JPO&INPIT