JPS63130661U

JPS63130661U -

Info

Publication number: JPS63130661U
Application number: JP2235187U
Authority: JP
Priority date: 1987-02-18
Filing date: 1987-02-18
Publication date: 1988-08-26

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例にかかる排気ガス再
循環量制御装置の主要部を破断した側面図、第２
図は本考案が適用される排気ガス基循環システム
の略図である。符号の説明、１０……排気ガス再循環量制御装
置、１１……バルブケーシング、１２……入口ポ
ート、１３……出口ポート、１４……弁座部材、
１５……隔壁部材、１６……ステツプモータ、１
７ａ，１７ｂ……コイル、１８……マグネツト、
１９……ロータ、２０……モータカバー、２１，
２２……軸受、２６……バルブロツド、２７……
弁体、５０……エンジン、５１……吸気系通路、
５２……排気系通路。 FIG. 1 is a side view with main parts cut away of an exhaust gas recirculation amount control device according to an embodiment of the present invention, and FIG.
The figure is a schematic diagram of an exhaust gas base circulation system to which the present invention is applied. Explanation of symbols, 10... Exhaust gas recirculation amount control device, 11... Valve casing, 12... Inlet port, 13... Outlet port, 14... Valve seat member,
15... Bulkhead member, 16... Step motor, 1
7a, 17b...Coil, 18...Magnet,
19...rotor, 20...motor cover, 21,
22...Bearing, 26...Valve rod, 27...
Valve body, 50...engine, 51...intake system passage,
52...Exhaust system passage.

Claims

[Scope of utility model registration request]

a valve casing that forms an exhaust gas passage therein that communicates an inlet port connected to an engine exhaust system through an exhaust gas recirculation system and an outlet port connected to an intake system of the engine; a valve seat member fixed in a predetermined position;
A valve body that changes the opening area of a metering hole formed in the valve seat member by its axial displacement, and a motor cover that is assembled to the valve casing via a partition member made of a thermally insulating material, and the rotor thereof is installed. a step motor disposed coaxially with the metering hole of the valve seat member to operate the valve body;
a valve rod made of a thermally insulating material, whose intermediate portion is slidably and non-rotatably supported by the partition wall member, whose one end portion is threadedly engaged with the rotor, and whose other end is integrally provided with the valve body; Exhaust gas recirculation amount control device.