F - Mech Eng,Light,Heat,Weapons – 04 – C
Patent
F - Mech Eng,Light,Heat,Weapons
04
C
230/39
F04C 18/16 (2006.01)
Patent
CA 1312319
FP-1036-02 ABSTRACT Dry-sealed screw rotors for compressors includes rotor tooth profiles in which an inter-tooth gap at a profile point on male and female rotor of a normal temperature is determined by an amount of interference due to thermal expansion caused during the operation of the compressors and an amount of minimum safety clearance necessary for the operation. The inter-tooth gap is further determined by a total thickness of seal coatings applied to the peripheral surfaces of the rotors at a profile point at which thus determined gap is smaller than the total thickness of seal coatings. With thus shaped rotor teeth, a most preferable seal line is achieved to produce an improved compression efficiency.
513301
Kubo Kazuo
Miyoshi Kiyotada
Nishitani Kunihiko
Tsuboi Noboru
Yoshimura Shoji
Kabushiki Kaisha Kobe Seiko Sho
Riches Mckenzie & Herbert Llp
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