F - Mech Eng,Light,Heat,Weapons – 04 – C
Patent
F - Mech Eng,Light,Heat,Weapons
04
C
230/37
F04C 18/04 (2006.01) F04C 2/02 (2006.01)
Patent
CA 1279301
SPECIFICATION 1. TITLE OF THE INVENTION: ROTARY TYPE FLUID MACHINE 2. ABSTRACT OF THE DISCLOSURE: A rotary type fluid machine including a stationary spiral element and a revolving spiral element respectively having a substantially identical configuration and disposed therein 180 degrees apart from each other in mutually nested relationship, the revolving spiral element being adapted to revolve in solar motion relationship with respect to the stationary spiral element with a radius of revolu- tionary motion ?, wherein the both spiral elements are respectively defined in profile with a radially outer curve segment consisting of an involute curve, a radially inner curve segment consisting of another involute curve in an inside arc having a radius R, and an arc having a radius r connecting smoothly the radially outer curve segment and the arc having the radius R, thereby ensuring a smallest possible error in the machining and thereby reducing a work period of time on the spiral elements; or wherein there is provided a small gap or clearance between the both spiral elements when installed in a mutual engagement relationship in such a manner that the whole inner and connection curves or part thereof defining the profile of the spiral elements may be caused to be departed out of the mutual engagement relationship in the range between marginal points for defining a due involute curve therefor, thereby ensuring a long service life and a high efficiency performance of the entire rotary type fluid machine.
482324
Hagimoto Kiyoshi
Hirano Takahisa
Marks & Clerk
Mitsubishi Jukogyo Kabushiki Kaisha
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