PURPOSE: To provide a highly efficient and compact solution pump to ensure sealing ability against liquid having high corrosion properties, in a pump type and a drive type used for conveyance of the working solution of an absorption type heat pump.
CONSTITUTION: 1 is taken as a DC brushless motor and a stator is separated in an airtight state from a rotor 4 by a liner 3 inserted in a stator 2. A volume type pump part 5 is integrally constituted in front of a body 6. The volume type pump part 5 is a trochoid type pump driven by a main shaft 7 pressed in the rotor 4 and formed in such a manner that boosting is effected in two stages. The main member of the volume type pump part 5 is pressed in a cavity 6a formed in front of the body 6 and the volume type pump part 5 is formed in lamination structure. Since the pump part 5 is driven by a DC motor, the number of revolutions is controlled with sharply high controllability, whereby a circulation amount of a pump is reliably controlled.
SAWADA TAKASHI
NOGUCHI MASAO
ITO MASARU
ISHII TAKAHITO
KAWAMOTO YASUHIRO
KONDO YASUHIRO
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