Water sealing pump

Abstract

Abstract PURPOSE:To increase mechanical strength with simple structure and to facilitate inspection by integrating a port plate and the fixing section to motor side while providing an intake path and shaft seal device at the motor side of said plate thereby reducing the number of parts and the joint face. CONSTITUTION:A tubular section 25a to be fixed to the endface of motor at the end and another tubular section 25b surrounding the end section of rotary shaft 22 fitted with an impeller 3 while provided with a shaft seal device 11 at the inside are formed integrally on the side face of a port plate 25. An intake path 28a, an exhaust path 28b and a working water injection path 29 are bored from the outercircumference between said tubular sections 25a, 25b. With such arrangement, the number of parts and the joint face are reduced to reduce the axial size while to prevent leakage of working water and since the load of external piping is applied in the vicinity of fixing section of motor 21, mechanical strength of pump is increased. Further, inspection work can be facilitated.

Inventors

• 👤 Tateki Furukawa
• 👤 古川　千城

Bibliographic Details