| 摘要 |
PURPOSE:To prevent hardening or soldifying of fluid in the clearance at the side face of gear rotor by arranging an annular seal member coaxial with the gear rotor shaft to the sideboard of housing. CONSTITUTION:An operating clearance 8 is formed between the gear rotors 4, 5 of gear pump and the sideboard 3 of housing. An annular seal member 13 coaxial with the rotor shaft is provided to the sideboard of housing at the position furthest from the rotor shafts 6, 7 on the side face of gear rotor to press the contacting face of seal member through a spring 18 against the side face of gear rotor. Since resin fluid will never flow into the clearance at the side face of gear rotor and hardened or solidified, proper operational clearance can be set freely.
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