COMPRESSOR

• Main Authors: KATADA TOMOKI, IWANAMI SHIGEKI
• Format: Patent
• Language: English; Japanese
• Published: 04.02.2016
• Subjects: BLASTING; HEATING; LIGHTING; MECHANICAL ENGINEERING; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTMACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTPUMPS; WEAPONS

PROBLEM TO BE SOLVED: To provide a compressor of an internal low pressure type, capable of reducing a size by including an oil separator therein and suppressing outflow of oil to outside of the compressor.SOLUTION: An intermittent oil supply mechanism 50 is configured to supply a two-phase flow consisting of part of gas refrigerant separated by an oil separator 40 and oil into a case 30 in a manner such that the gas refrigerant in the two-phase flow flows into a throttle passage 501a as a gas flow. Assuming that the intermittent oil supply mechanism 50 throttles an oil flow to the extent that an entire quantity of the oil separated by the oil separator 40 is unable to pass through the intermittent oil supply mechanism 50, the throttle passage 501a is filled with the oil and there is no room for the flow of the gas refrigerant into the throttle passage 501a as a gas flow. The intermittent oil supply mechanism 50, by contrast, allows the entire quantity of the oil separated by the oil separator 40 to pass through the intermittent oil supply mechanism 50. It is, therefore, possible to prevent the separated oil from overflowing in the oil separator 40 and prevent the outflow of the oil to outside.SELECTED DRAWING: Figure 1 【課題】内部低圧式の圧縮機において、油分離器を内蔵することによる小型化を図ると共に圧縮機外部へのオイル流出を抑えることが可能な圧縮機を提供する。【解決手段】間欠給油機構５０は、油分離器４０で分離されたガス冷媒の一部とオイルとから成る二相流をケース３０内へ流し、その二相流の中のガス冷媒が気流となって絞り通路５０１ａへ流入するように構成されている。ここで仮に、間欠給油機構５０が、油分離器４０で分離されたオイルの全量を通過させることができないほどオイル流れを絞っていたとすれば、絞り通路５０１ａ内はオイルで満たされるので、ガス冷媒が気流となって絞り通路５０１ａへ流入する余地は生じない。従って、間欠給油機構５０では、油分離器４０で分離されたオイルの全量が間欠給油機構５０を通過できるので、その分離されたオイルが油分離器４０でオーバーフローすることが防止され、外部へのオイル流出を防止できる。【選択図】図１