Title:
DRAINAGE PUMP FOR AIR-CONDITIONING EQUIPMENT
Document Type and Number:
Japanese Patent JP2004076628
Kind Code:
A
Abstract:
To provide a drainage pump for air-conditioning equipment capable of preventing noise generated by the rotation of an impeller (blade) near an inlet port in a balanced operating state.
This drainage pump for air-conditioning equipment comprises a pump body 2 having the inlet port 3 at the lower end and a discharge port 4 at the upper side portion, the impeller 5 housed in the pump body 2, and a motor 1 for rotating the impeller 5. The lower end position of the impeller 5 is set within the range of ≥0 mm and ≤4 mm from the inlet port 3 into the pump body 2, more preferably ≥1 mm and ≤2.5 mm.
Inventors:
NAKAJO TAKASHI
KOGORI AKINORI
KOMATA MICHIO
KOGORI AKINORI
KOMATA MICHIO
Application Number:
JP2002235789A
Publication Date:
March 11, 2004
Filing Date:
August 13, 2002
Export Citation:
Assignee:
SAGINOMIYA SEISAKUSHO INC
International Classes:
F04D29/00; F04D1/14; F04D29/44; F24F13/22; (IPC1-7): F04D29/44; F04D29/00; F24F1/00
Attorney, Agent or Firm:
Koji Shichijo
Koichi Kusano
Koichi Kusano