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Patent Searching and Data


Title:
AUTOMATIC WATER SUPPLY DEVICE
Document Type and Number:
Japanese Patent JP2006177157
Kind Code:
A
Abstract:

To provide an automatic water supply device capable of constructing a feed water pump with different powering characteristics by changing the operation specification of a motor for driving the pump.

The automatic water supply device is provided with a jet part 12 connected to the discharge side and suction side of a main pump equipped with an accumulator; a control part 24 performing variable speed operation of the motor for driving the main pump; a storage part 25 storing maximum rotating speed and maximum current values for every type of the motor; and a change-over switch 21. The maximum rotating speed or maximum current value stored in the storage part is easily selectable according to the state of the change-over switch.


Inventors:
ABE MASAYUKI
NAKANISHI MASAHIRO
TAMAGAWA MITSURU
Application Number:
JP2004368042A
Publication Date:
July 06, 2006
Filing Date:
December 20, 2004
Export Citation:
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Assignee:
KAWAMOTO PUMP MFG
International Classes:
F04D15/00; F04D13/12
Domestic Patent References:
JPS6155394A1986-03-19
JPS6180387A1986-04-23
Attorney, Agent or Firm:
Takehiko Suzue
Satoshi Kono
Makoto Nakamura
Kurata Masatoshi
Takashi Mine
Yoshihiro Fukuhara
Sadao Muramatsu
Ryo Hashimoto