OPEN TYPE COMPRESSOR

• Main Authors: ITO TAKAHIDE, GOTO TAKASHI, GOTO TOSHIYUKI, NOGUCHI AKIHIRO, YOKOYAMA MASAKI, MIZUNO HISAO, MIYAMOTO YOSHIAKI, GOTO SHUSAKU
• Format: Patent
• Language: English; Japanese
• Published: 24.09.2020
• 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

To provide an open type compressor which can hold an enlarged bearing part therein without enlarging a housing which holds the bearing part.SOLUTION: An open type compressor 1 includes: a front housing 3 in which a recessed part 3a for holding a main bearing 7 on an axis X is formed at a compression mechanism side end part; and a removal prevention member 31 which is attached to the compression mechanism side end part of the front housing 3 in a state that the main bearing 7 is held in the recessed part 3a. The recessed part 3a includes a cylindrical first inner peripheral surface 3c having a first diameter D1 which is formed with the axis X set to its center. The removal prevention member 31 includes a cylindrical second inner peripheral surface 31e having a second diameter D2 which is formed with the axis X set to its center and smaller than the first diameter D1. The main bearing 7 includes a cylindrical outer peripheral surface 7d having a third diameter D3 larger than the second diameter D2.SELECTED DRAWING: Figure 3 【課題】軸受部を保持するハウジングを大型化することなく、大型化した軸受部を内部に保持することが可能な開放型圧縮機を提供する。【解決手段】メイン軸受７を軸線Ｘ上に保持するための凹所３ａが圧縮機構側の端部に形成されたフロントハウジング３と、凹所３ａにメイン軸受７が保持された状態でフロントハウジング３の圧縮機構側の端部に取り付けられた抜け防止部材３１と、を備え、凹所３ａは、軸線Ｘを中心とした第１直径Ｄ１を有する円筒状の第１内周面３ｃを備え、抜け防止部材３１は、軸線Ｘを中心とした第１直径Ｄ１よりも小さい第２直径Ｄ２を有する円筒状の第２内周面３１ｅを備え、メイン軸受７は、第２直径Ｄ２よりも大きい第３直径Ｄ３を有する円筒状の外周面７ｄを備える開放型圧縮機１を提供する。【選択図】図３