JPH0442286U

JPH0442286U -

Info

Publication number: JPH0442286U
Application number: JP8398390U
Authority: JP
Priority date: 1990-08-10
Filing date: 1990-08-10
Publication date: 1992-04-09

Description

[Brief explanation of the drawing]

第１図、第２図及び第３図はいずれも本考案の
機械駆動式スクリユー型過給機の実施例を示す概
略切断平面図、第４図、第５図及び第６図はいず
れも本考案の別の実施例を示す概略切断側面図、
第７図は従来の機械駆動式スクリユー型過給機の
一例を示す概要図、第８図は第７図の切断側面図
である。１……ケーシング、２……雄ロータ、３……雌
ロータ、４……吸入ポート、５……吐出ポート、
５Ｍ……雄ロータ側切口縁部、５Ｆ……雌ロータ
側切口縁部、５Ｍ′，５Ｆ′……エツジ、α，β
……ねじれ角、Δα，Δβ、……ずらし角。 Figures 1, 2, and 3 are all schematic cutaway plan views showing embodiments of the mechanically driven screw type supercharger of the present invention, and Figures 4, 5, and 6 are all shown in the book. a schematic cutaway side view showing another embodiment of the invention;
FIG. 7 is a schematic diagram showing an example of a conventional mechanically driven screw type supercharger, and FIG. 8 is a cutaway side view of FIG. 7. 1...Casing, 2...Male rotor, 3...Female rotor, 4...Suction port, 5...Discharge port,
5M...male rotor side cut edge, 5F...female rotor side cut edge, 5M', 5F'...edge, α, β
...twist angle, Δα, Δβ, ...shift angle.

Claims

[Claims for Utility Model Registration] (1) A mechanically driven screw-type supercharger that compresses intake air and discharges it from a discharge port by rotating a male rotor and a female rotor housed in a casing. The mechanically driven screw-type overflow is characterized in that the cut angle of at least one of the cut edge on the male rotor side and the cut edge on the female rotor side of the discharge port is shifted from the helix angle of the corresponding rotor. feeding machine. (2) In a mechanically driven screw type supercharger that compresses intake air and discharges it from a discharge port by rotating a male rotor and a female rotor housed in a casing, the male rotor of the discharge port A mechanically driven screw-type supercharger characterized in that at least one of the side cut edge and the female rotor side cut edge has a smoothly rounded edge. (3) In a mechanically driven screw-type supercharger that compresses intake air and discharges it from a discharge port by rotating a male rotor and a female rotor housed in a casing, the male rotor of the discharge port The cut angle of at least one of the side cut edge and the female rotor side cut edge is shifted from the corresponding helix angle of the rotor, and the cut angle of at least one of the male rotor side cut edge and the female rotor side cut edge of the discharge port is A mechanically driven screw-type supercharger characterized by one edge having a smooth rounded shape.