Fluid machine having screw rotors with a straight portion to be

Details Fluid machine having screw rotors with a straight portion to be Fluid machine having screw rotors with a straight portion to be

1998-06-30

2000-11-07

Vrablik, John J.

Rotary expansible chamber devices

Interengaging rotating members

Helical or herringbone

29888023, F01C 116

Patent

active

RE0369497

ABSTRACT:
A shaft hole 69 in a cast rotor main body 67 has a hollow space 75 and an opening 79 in a tooth trace 73 formed by using a core. A hollow screw rotor 35 is formed by fixing a rotor shaft 47 in this shaft hole 69. A straight portion 81 to be chucked at the time of machining is formed at the inner peripheral side of the opening 79.

REFERENCES:
patent: 2325617 (1943-08-01), Lysholm et al.
patent: 5290150 (1994-03-01), Takahashi et al.

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