JPH02127747U

JPH02127747U -

Info

Publication number: JPH02127747U
Application number: JP3764489U
Authority: JP
Priority date: 1989-03-31
Filing date: 1989-03-31
Publication date: 1990-10-22

Description

[Brief explanation of drawings]

第１，２図はこの考案の実施例を示し、第１図
はアイドラプーリ取付け部位の要部拡大断面図、
第２図は内燃機関の概略側面図である。第３図は
この考案のその他の実施例を示すアイドラプーリ
取付け部位の要部拡大断面図である。第４，５図
はこの考案の従来技術を示し、第４図はアイドラ
プーリ取付け部位の要部拡大断面図、第５図は内
燃機関の概略側面図である。図において、２は内燃機関、４はクランクシヤ
フト、６はカムシヤフト、８はオイルポンプ駆動
用シヤフト、１０はウオータポンプ駆動用シヤフ
ト、１２はタイミングベルトカバー、１４は第１
クランクプーリ、１６はカムシヤフトプーリ、１
８はオイルポンププーリ、２０はウオータポンプ
プーリ、２２は第１タイミングベルト、２４は第
２クランクプーリ、２６はコンプレツサ駆動用シ
ヤフト、２８はコンプレツサプーリ、３０はオル
タネータ駆動用シヤフト、３２はオルタネータプ
ーリ、３４は第２タイミングベルト、３６はアイ
ドラプーリ、３８は貫通孔部、４０はテンシヨナ
である。 Figures 1 and 2 show an embodiment of this invention, and Figure 1 is an enlarged cross-sectional view of the main part of the idler pulley attachment site.
FIG. 2 is a schematic side view of the internal combustion engine. FIG. 3 is an enlarged cross-sectional view of the main part of the idler pulley attachment site showing another embodiment of this invention. 4 and 5 show the prior art of this invention, with FIG. 4 being an enlarged sectional view of the main part of the idler pulley attachment site, and FIG. 5 being a schematic side view of the internal combustion engine. In the figure, 2 is an internal combustion engine, 4 is a crankshaft, 6 is a camshaft, 8 is an oil pump drive shaft, 10 is a water pump drive shaft, 12 is a timing belt cover, and 14 is a first
Crank pulley, 16 is camshaft pulley, 1
8 is an oil pump pulley, 20 is a water pump pulley, 22 is a first timing belt, 24 is a second crank pulley, 26 is a compressor drive shaft, 28 is a compressor pulley, 30 is an alternator drive shaft, 32 is an alternator pulley , 34 is a second timing belt, 36 is an idler pulley, 38 is a through hole portion, and 40 is a tensioner.

Claims

[Scope of utility model registration request]

The inner first one is located at one end of the crankshaft of the internal combustion engine.
A crank pulley is provided, and a second outer crank pulley is provided outside the first crank pulley, and the first crank pulley, oil pump pulley, water pump pulley, and camshaft pulley are connected by an inner first timing belt. 2
A crank pulley, a compressor pulley, and an alternator are connected to each other by an outer second timing belt, and an idler pulley is provided that applies tension to the second timing belt with the oil pump driving shaft of the oil pump pulley as the axis. An idler pulley structure for belt drive of an internal combustion engine, which is characterized by: