Roots type gear compressor with helical lobes having...

Details Roots type gear compressor with helical lobes having... Roots type gear compressor with helical lobes having...

F - Mech Eng,Light,Heat,Weapons

04

C

F04C 18/08 (2006.01) F02B 33/40 (2006.01)

Patent

CA 2642172

A gear compressor or supercharger for compressing compressible fluids such as air, having a pair of intermeshing helical lobed rotors. A plenum or cavity is provided at a rear end of the gear compressor, situated rearwardly of said rotors and below an respective axis of rotation of each of said rotors, which spans at least a distance between said respective longitudinal axis of rotation of each of said rotors. In a preferred embodiment the plenum is in direct fluid communication with high pressure fluid which is discharged from said high pressure discharge port. The above modification improves the efficiency of the compressor, particularly at high revolutions.

Un compresseur à engrenages hélicoïdaux ou un surcompresseur pour comprimer des fluides compressibles comme de l'air, muni d'une paire de rotors à lobes hélicoïdaux s'engrenant. Un plenum ou une cavité est situé à l'extrémité arrière du compresseur à engrenages hélicoïdaux, situé à l'arrière desdits rotors, et sous un axe de rotation respectif de chaque rotor, qui s'étend d'au moins une distance entre ledit axe de rotation longitudinal respectif de chaque rotor. Dans un modèle préféré, le plenum est en communication fluidique directe avec un fluide sous haute pression qui est déchargé à partir d'un orifice de décharge à haute pression. La modification susmentionnée améliore l'efficacité du compresseur, en particulier, à hautes révolutions.

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