JPS61157828U

JPS61157828U -

Info

Publication number: JPS61157828U
Application number: JP4102185U
Authority: JP
Priority date: 1985-03-23
Filing date: 1985-03-23
Publication date: 1986-09-30

Description

[Brief explanation of the drawing]

第１図は吸入空気量検出装置の側面断面図、第
２図は第１図の平面図、第３図は第１図の―
線に沿つてみた断面図、第４図は第１図の―
線に沿つてみた断面図、第５図は第１図の―
線に沿つてみた断面図、第６図は第１図の―
線に沿つてみた断面図、第７図は第１図の―
線に沿つてみた流速検出用素子および吸気温検出
用素子の拡大平面図、第８図は第７図の―線
に沿つてみた流速検出用素子の側面断面図、第９
図は検出回路図である。２……吸気通路、３……大ベンチユリ、４……
小ベンチユリ、５……小ベンチユリ通路、１０…
…バイパス通路、１１……バイパス通路入口、１
３……バイパス通路出口、１７……流速検出用素
子、１８……吸気温検出用素子。 Fig. 1 is a side sectional view of the intake air amount detection device, Fig. 2 is a plan view of Fig. 1, and Fig. 3 is the same as Fig. 1.
A cross-sectional view taken along the line, Figure 4 is the same as in Figure 1.
A cross-sectional view taken along the line, Figure 5 is the same as in Figure 1.
A cross-sectional view taken along the line, Figure 6 is the same as in Figure 1.
A cross-sectional view taken along the line, Figure 7 is the same as in Figure 1.
FIG. 8 is an enlarged plan view of the flow velocity detection element and intake temperature detection element taken along the line, FIG. 8 is a side cross-sectional view of the flow velocity detection element taken along the line - in FIG.
The figure is a detection circuit diagram. 2...Intake passage, 3...Large bench lily, 4...
Small bench lily, 5...Small bench lily passage, 10...
...Bypass passage, 11...Bypass passage entrance, 1
3... Bypass passage outlet, 17... Element for detecting flow velocity, 18... Element for detecting intake temperature.

Claims

[Scope of utility model registration request]

A large bench lily is formed in the intake passage, a small bench lily having a hollow cylindrical shape is arranged on the axis of the intake passage, and an outlet of the small bench lily passage formed in the small bench lily is arranged in the large bench lily. A bypass passage that communicates the intake passage upstream of the bench lily with the small bench lily passage is formed in the small bench lily, and the entrance of the bypass passage is arranged adjacent to the entrance of the small bench lily passage, and a heat-sensitive resistance type flow velocity detection element is arranged in the bypass passage. In the intake air amount detection device for an internal combustion engine, the bypass passage inlet is formed in an annular shape extending along the outer periphery of the small bench lily passage inlet.