JPS61155641U

JPS61155641U -

Info

Publication number: JPS61155641U
Application number: JP4076285U
Authority: JP
Priority date: 1985-03-19
Filing date: 1985-03-19
Publication date: 1986-09-26
Also published as: JPH0435538Y2

Description

[Brief explanation of drawings]

第１図は本考案の実施例に係る排気ターボ過給
装置の正面図、第２図は第１図の―矢視図、
第３図は第１図の―矢視図、第４図は第３図
の―断面図、第５図は第４図の―断面図
、第６図は第５図の―断面図、第７図は第６
図に示した弁装置の状態変化図、第８図及び第９
図は本考案の他の実施例に係る弁装置の作動状態
図、第１０図は従来の排気ターボ過給装置の要部
の構造説明図である。１…エンジン本体、２…ターボ過給機、４…排
気管、６…弁装置、７…弁作動装置、８，９…ア
クチユエータ、１１，１２…インシユレータ、２
１…タービンケーシング、２２…コンプレツサケ
ーシング、２３…センターケーシング、２６…隔
壁、２７，２８…排気ガス通路、２９，３０…排
気ガス導入口、３１…ウエストゲートバルブ、３
３…弁座面、４１…分岐管部、４２…集合管部、
４４…拡張部、６１…弁体、６２…弁支持体、６
３…弁押えプレート、６５…作動中心軸、７１…
通気孔。 FIG. 1 is a front view of an exhaust turbo supercharging device according to an embodiment of the present invention, FIG. 2 is a view taken along the - arrow in FIG.
Fig. 3 is a sectional view of Fig. 1, Fig. 4 is a sectional view of Fig. 3, Fig. 5 is a sectional view of Fig. 4, and Fig. 6 is a sectional view of Fig. 5; Figure 7 is the 6th
State change diagrams of the valve device shown in Figures 8 and 9
The figure is an operating state diagram of a valve device according to another embodiment of the present invention, and FIG. 10 is a structural explanatory diagram of main parts of a conventional exhaust turbo supercharging device. DESCRIPTION OF SYMBOLS 1... Engine body, 2... Turbo supercharger, 4... Exhaust pipe, 6... Valve device, 7... Valve actuation device, 8, 9... Actuator, 11, 12... Insulator, 2
DESCRIPTION OF SYMBOLS 1... Turbine casing, 22... Compressor casing, 23... Center casing, 26... Partition wall, 27, 28... Exhaust gas passage, 29, 30... Exhaust gas inlet, 31... Waste gate valve, 3
3... Valve seat surface, 41... Branch pipe section, 42... Collecting pipe section,
44... Expansion part, 61... Valve body, 62... Valve support body, 6
3...Valve holding plate, 65...Operation center axis, 71...
Air vent.

Claims

[Scope of utility model registration request]

A turbine casing having a plurality of exhaust gas inlets separated from each other by partition walls, a common exhaust pipe connected to the turbine casing so as to guide exhaust gas to the plurality of exhaust gas inlets, and a common exhaust pipe provided in the exhaust pipe. a valve device that opens and closes a high-speed exhaust gas inlet that additionally introduces exhaust gas on a high-speed side of the engine among the plurality of exhaust gas inlets, using an end face on the exhaust gas inlet side of the turbine casing as a valve seat surface; An exhaust turbo supercharging device comprising: an exhaust turbo supercharging device comprising: an exhaust gas inlet side end surface of the partition wall that is substantially covered by the valve device when the valve device is in a closed state;