PUMP

• Main Authors: YAMAMOTO KOJI, UCHI HIROTO
• Format: Patent
• Language: English; Japanese
• Published: 20.05.2021
• 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 suppress occurrence of noise in a silencer provided on a pump.SOLUTION: A pump 1 includes a pump part 2 for transferring fluid P, a silencer 4 formed with a silencing chamber 3 through which the fluid P transferred from the pump part 2 passes, and an elastic member 6, the silencer 4 including a first wall member 8 having a first wall surface 8a and a second wall member 10 having a second wall surface 10a opposed to the first wall surface 8a, the silencing chamber 3 being defined by the first wall surface 8a, the second wall surface 10a, and a side wall surface 20 connecting the first wall surface 8a and the second wall surface 10a, at least a part of the elastic member 6 being arranged between the first wall surface 8a and the second wall surface 10a away from the side wall surface 20, the elastic member 6 having contact with both the first wall surface 8a and the second wall surface 10a in at least a part of a period during the operation of the pump 1.SELECTED DRAWING: Figure 1 【課題】ポンプに設けられるサイレンサにおける騒音の発生を抑制する。【解決手段】ポンプ１は、流体Ｐを移送するためのポンプ部２と、ポンプ部２から移送された流体Ｐが通過する消音室３が形成されるサイレンサ４と、弾性部材６と、を備え、サイレンサ４は、第１壁面８ａを有する第１壁部材８と第１壁面８ａと対向する第２壁面１０ａを有する第２壁部材１０とを含み、消音室３は、第１壁面８ａと、第２壁面１０ａと、第１壁面８ａと第２壁面１０ａとを接続する側壁面２０と、によって画定され、弾性部材６の少なくとも一部は、側壁面２０から離間して第１壁面８ａと第２壁面１０ａとの間に配置され、弾性部材６は、ポンプ１の運転中における少なくとも一部の期間において、第１壁面８ａ及び第２壁面１０ａの両方に接触するように構成される。【選択図】 図１