Title:
【発明の名称】洗濯機の風呂水用自吸式吸水ポンプ
Document Type and Number:
Japanese Patent JP2996621
Kind Code:
B2
Abstract:
PURPOSE: To improve compact storing property, reduce a cost and improve the balance between self suction property and discharge property by arranging a mechanical seal between a coupling and a pump runner and forming the coupling with an insulation material. CONSTITUTION: A cylinder part 40m for holding a motor 43, a pump runner room, a room for storing a mechanical seal 48 and a coupling 45, one part of air water separation room and a water passage 40e for cooling are integrally installed in a casing 40. Further, a water escape hole 40f for draining the leak water from the mechanical seal 48 and vapour escape holes 40g, 40h for draining the vapour generated around the coupling 45 and the motor 43 are provided. A runner shaft 49 is connected to a motor shaft 43a through the coupling 45 consisting of an insulation material. Thereby, an electric leak from the motor 43 to the pump runner side can be eliminated and an electric shock can be prevented.
Inventors:
Shigeharu Nakano
Akira Miyao
Tamotsu Shikamori
Nobumasa Tanaka
Akira Miyao
Tamotsu Shikamori
Nobumasa Tanaka
Application Number:
JP15065496A
Publication Date:
January 11, 2000
Filing Date:
June 12, 1996
Export Citation:
Assignee:
株式会社日立製作所
International Classes:
D06F39/08; F04D9/02; (IPC1-7): F04D9/02; D06F39/08
Domestic Patent References:
| JP491394A | ||||
| JP4713701U | ||||
| JP5456201U | ||||
| JP57144296U |
Attorney, Agent or Firm:
Akio Takahashi (2 outside)