JPH01102436U

JPH01102436U -

Info

Publication number: JPH01102436U
Application number: JP19776187U
Authority: JP
Priority date: 1987-12-26
Filing date: 1987-12-26
Publication date: 1989-07-11

Description

[Brief explanation of the drawing]

第１図から第６図はこの考案の一実施例にかか
るエンジンの過給圧制御装置を示し、第１図が全
体平面図、第２図が一部正面図、第３図が模式図
、第４図ａが他の１の主要部品の平面図、第４図
ｂが同じく正面図、第４図ｃが同じく要部拡大図
、第５図が他の１の主要部品の断面図、第６図お
よび第７図が特性図である。１１……エンジン、１３……インテークマニホ
ールド、１６……スロツトルバルブ、１８……タ
ーボチヤージヤ、１８ａ……コンプレツサ、１８
ｂ……タービン、２２……インテークパイプ、２
２ａ……ニツプル、２６……吸気通路、２８……
リリーフバルブ（開閉弁）、３０……バイパス通
路。 1 to 6 show an engine boost pressure control device according to an embodiment of this invention, in which FIG. 1 is an overall plan view, FIG. 2 is a partial front view, and FIG. 3 is a schematic diagram. Fig. 4a is a plan view of the main parts of the other 1, Fig. 4b is a front view, Fig. 4c is an enlarged view of the main parts, Fig. 5 is a sectional view of the main parts of the other 1, 6 and 7 are characteristic diagrams. 11... Engine, 13... Intake manifold, 16... Throttle valve, 18... Turbo charger, 18a... Compressor, 18
b... Turbine, 22... Intake pipe, 2
2a...Nipple, 26...Intake passage, 28...
Relief valve (on/off valve), 30...bypass passage.

Claims

[Scope of Claim for Utility Model Registration] (1) A turbocharger compressor is disposed upstream of the throttle valve in the intake passage in which the throttle valve is provided, and one end of the compressor is disposed in the intake passage between the compressor and the throttle valve. is provided with a bypass passage whose other end opens into the intake passage upstream of the compressor, and supercharging pressure upstream of the throttle valve is introduced into the bypass passage from one end of the bypass passage, and supercharging pressure downstream of the throttle valve is introduced into the bypass passage from one end side of the bypass passage. In an engine supercharging pressure control device including an opening/closing valve that introduces intake pressure from an intake passage and opens and closes based on a pressure difference between intake air upstream and downstream of a throttle valve, the flow of intake air from one end of the bypass passage to the intake passage is provided. A supercharging pressure control device for an engine, characterized in that the opening is oriented downstream, and the intersection angle formed by the intake passage and the bypass passage on the upstream side in the flow direction of intake air is an acute angle. (2) The intersection angle is 10[deg] to 55[deg]
g] The engine boost pressure control device according to claim 1 of the utility model registration claim. (3) The engine supercharging pressure control device according to claim 1, wherein the circumference of the opening of the bypass passage to the intake passage is curved.