JPS62173579U

JPS62173579U -

Info

Publication number: JPS62173579U
Application number: JP6137086U
Authority: JP
Priority date: 1986-04-23
Filing date: 1986-04-23
Publication date: 1987-11-04

Description

[Brief explanation of the drawing]

図面のうち第１図〜第５図は本考案の実施例を
示すもので、第１図は機械式非圧縮型過給機の縦
断面図、第２図は第１図―線断面図、第３図
は溝部とその近傍部の要部拡大縦断面図、第４図
は低圧室へ流入する気流の流速を示す線図、第５
図は変形例に係る第２図相当図、第６図は従来装
置の第２図相当図である。１……吸気通路、２……機械式非圧縮型過給機
、３……ロータハウジング、４・４ａ……内周面
、５……ロータ、６……駆動軸、９……吐出口、
１２……溝部、１２ａ・１２ｂ・１２ｃ……夫々
第１〜第３溝部。 Among the drawings, FIGS. 1 to 5 show an embodiment of the present invention, in which FIG. 1 is a longitudinal sectional view of a mechanical non-compression type supercharger, FIG. 2 is a sectional view taken along the line of FIG. Fig. 3 is an enlarged vertical cross-sectional view of the main part of the groove and its vicinity, Fig. 4 is a diagram showing the flow velocity of the airflow flowing into the low pressure chamber, and Fig. 5
The figure is a diagram corresponding to FIG. 2 according to a modified example, and FIG. 6 is a diagram corresponding to FIG. 2 of a conventional device. DESCRIPTION OF SYMBOLS 1... Intake passage, 2... Mechanical non-compression supercharger, 3... Rotor housing, 4/4a... Inner peripheral surface, 5... Rotor, 6... Drive shaft, 9... Discharge port,
12...groove portion, 12a, 12b, 12c...first to third groove portions, respectively.

Claims

[Claim for Utility Model Registration] In a mechanical non-compression supercharger installed in the intake passage of an engine, from a position corresponding to the top of the discharge side of the rotor at the end of the intake stroke of the supercharger to the discharge port. A supercharger for an engine, characterized in that a plurality of grooves are formed on an inner circumferential surface of a rotor housing between the two, substantially parallel to a drive shaft of the supercharger.