JPH046731U

JPH046731U -

Info

Publication number: JPH046731U
Application number: JP4761990U
Authority: JP
Priority date: 1990-05-09
Filing date: 1990-05-09
Publication date: 1992-01-22

Description

[Brief explanation of drawings]

第１図はこの考案の一実施例を示す要部の一部
断面斜視図、第２図は上記実施例が適用されてい
る内燃機関の吸気装置の全体断面図、第３図は第
２図の要部を示す拡大された断面図、第４図はさ
らにその詳細を示す部分的な断面図、第５図は上
記実施例に使用されているリード弁体の斜視図、
第６図及び第７図は上記リード弁体の動作説明図
、第８図はトルク特性図、第９図は上記実施例の
変形例を示すトルク特性図、第１０図は従来例を
示す吸気装置の断面図、第１１図は従来例の要部
を示す拡大された断面図、第１２図は第１１図の
上面図である。２９……燃焼室、３３……吸気ポート（吸気通
路）、３９……通路（吸気通路）、４７……弁支
持部材（弁基部）、４９……吸気流通孔、５１…
…リード弁体（一方向弁）、６５……ラツク（動
力伝達手段）、６９……ピニオン（動力伝達手段
）、７５……ステツプモータ（駆動手段）、７７
……コントロールユニツト（制御手段）。 Fig. 1 is a partial cross-sectional perspective view of a main part showing an embodiment of this invention, Fig. 2 is an overall sectional view of an intake system of an internal combustion engine to which the above embodiment is applied, and Fig. FIG. 4 is a partial sectional view showing further details, and FIG. 5 is a perspective view of the reed valve body used in the above embodiment.
Figures 6 and 7 are explanatory diagrams of the operation of the reed valve body, Figure 8 is a torque characteristic diagram, Figure 9 is a torque characteristic diagram showing a modification of the above embodiment, and Figure 10 is an intake diagram showing a conventional example. A sectional view of the device, FIG. 11 is an enlarged sectional view showing essential parts of a conventional example, and FIG. 12 is a top view of FIG. 11. 29... Combustion chamber, 33... Intake port (intake passage), 39... Passage (intake passage), 47... Valve support member (valve base), 49... Intake circulation hole, 51...
... Reed valve body (one-way valve), 65 ... Rack (power transmission means), 69 ... Pinion (power transmission means), 75 ... Step motor (drive means), 77
...Control unit (control means).

Claims

[Scope of utility model registration request]

One end side is supported by a valve support member provided in the intake passage, and it can be opened and closed by changes in negative pressure in the combustion chamber with respect to the intake flow hole formed in the valve support member, and slides relative to the intake flow hole of the valve support member. The engine is characterized by having a one-way valve capable of moving, a power transmission means for sliding the one-way valve, a drive means for operating the power transmission means, and a control means for driving and controlling the drive means according to the engine speed. intake system for internal combustion engines.