JPH0471740U

JPH0471740U -

Info

Publication number: JPH0471740U
Application number: JP11571290U
Authority: JP
Priority date: 1990-11-02
Filing date: 1990-11-02
Publication date: 1992-06-25

Description

[Brief explanation of drawings]

第１〜５図は本考案の第１実施例としてのエン
ジン回転数感応式慣性過給装置を示すもので、第
１図はその要部の模式的な斜視図、第２図はその
模式的な平面図、第３図は第２図のＣ−Ｃ矢視断
面の模式図、第４図は第２図のＡ−Ａ矢視断面の
模式図、第５図はその効果を示すグラフであり、
第６，７図は本考案の第２実施例としてのエンジ
ン回転数感応式慣性過給装置を示すもので、第６
図はその要部の模式的な側面図、第７図はその模
式的な平面図（第６図のＤ方向矢視図）であり、
第８図は従来の慣性過給を説明する吸気通路の模
式図である。１……エンジン、２……シリンダヘツド、３…
…吸気マニホルド（吸気通路下流部分）、５……
配管（吸気通路上流部分）、６Ａ，６Ａ′……渦
巻型通路７の開口（流入用開口部）、６Ｂ……渦
巻型通路７の開口（流出用開口部）、７……渦巻
型通路、７Ａ，７Ｂ……渦巻型通路体、８ａ，８
ｂ，８ｃ，８ｄ……開口選択機構９の開口９ｃの
調整位置、９，９′……開口選択機構、９ａ……
プレート状弁体、９ｂ……アクチユエータ、９ｃ
……開口、１０……コントローラ（制御手段）、
１１……エンジン回転数センサ、１２……配管（
吸気通路上流部分）、１３……プレート状弁体（
円板）、１３ａ……ガイド、１３ｂ……開口、１
４……ワイヤ、１５……フライウエイト、１６…
…フライウエイト式駆動機構。 Figures 1 to 5 show an engine speed sensitive inertia supercharging device as a first embodiment of the present invention, with Figure 1 being a schematic perspective view of its main parts, and Figure 2 being a schematic perspective view of its main parts. 3 is a schematic diagram of a cross section taken along line C-C in Figure 2, Figure 4 is a schematic diagram of a cross section taken along line A-A in Figure 2, and Figure 5 is a graph showing the effect. can be,
6 and 7 show an engine speed sensitive inertia supercharging device as a second embodiment of the present invention.
The figure is a schematic side view of the main part, and FIG. 7 is a schematic plan view (view in the direction of arrow D in FIG. 6).
FIG. 8 is a schematic diagram of an intake passage explaining conventional inertial supercharging. 1...Engine, 2...Cylinder head, 3...
...Intake manifold (downstream part of intake passage), 5...
Piping (upstream part of intake passage), 6A, 6A'... Opening of spiral passage 7 (inflow opening), 6B... Opening of spiral passage 7 (outflow opening), 7... Spiral passage, 7A, 7B... spiral passage body, 8a, 8
b, 8c, 8d...Adjustment position of the aperture 9c of the aperture selection mechanism 9, 9, 9'...Aperture selection mechanism, 9a...
Plate-shaped valve body, 9b...actuator, 9c
...Aperture, 10...Controller (control means),
11...Engine speed sensor, 12...Piping (
upstream part of the intake passage), 13... plate-shaped valve body (
disc), 13a...guide, 13b...opening, 1
4...Wire, 15...Fly weight, 16...
...Flyweight drive mechanism.

Claims

[Scope of utility model registration request]

An engine speed sensitive type that is equipped with a variable intake passage section that can adjust the effective passage length, and performs inertia supercharging by adjusting the effective passage length of the variable intake passage section to synchronize with the engine rotation speed. In the inertial supercharging device, the variable intake passage portion includes a spiral passage interposed in the middle of the intake passage and formed in a spiral shape, and a downstream portion of the intake passage provided at an outer peripheral end of the spiral passage. an outflow opening communicating with the spiral passage, a plurality of inflow openings provided from near the center end of the side of the spiral passageway to near the outer circumferential end; An opening selection mechanism is provided to cover the inflow openings and selects one of the inflow openings to communicate with the upstream portion of the intake passage to close the remaining inflow openings. In order to increase the effective passage length in a region where the engine speed is low, an inlet opening that is separated from the outflow opening on the passage is selected, and in a region where the engine speed is high, the effective passage length is shortened. an engine speed sensitive inertia control means for controlling the aperture selection mechanism to select an inflow opening that is closer on the passageway to the outflow opening; Supercharging device.