JPH02107736U

JPH02107736U -

Info

Publication number: JPH02107736U
Application number: JP1506289U
Authority: JP
Priority date: 1989-02-10
Filing date: 1989-02-10
Publication date: 1990-08-28

Description

[Brief explanation of the drawing]

図面は本考案の一実施例を示すもので、第１図
は本考案装置を備えた内燃機関の端面図、第２図
は、第１図−線に沿う部分断面図、第３図は
、第１図−線に沿う部分断面図、第４図は、
第３図−線に沿う部分断面図である。Ｄ…死空間、Ｅ…機関本体、Ｏｐ…オイルポン
プ、Ｔ_１，Ｔ_２…第１、第２巻掛伝動系、１…シ
リンダブロツク、８…クランク軸、１３…ポンプ
ボデイ、１７…駆動輪としての第１駆動プーリ、
２０，２１…動弁カム軸、２３…被動輪としての
被動プーリ、２６…無端伝動帯としての無端ベル
ト、２８，２９…バランサ軸、３５…テンシヨナ
としての第１テンシヨンプーリ、５５…ポンプケ
ース、５６…オイルポンプ室、５７，５８…ギヤ
、６１…吸込口、６２…吐出口、６３…吸込通路
、６４…吐出通路、６５…オイルギヤラリ、６６
…吸込管。 The drawings show an embodiment of the present invention; FIG. 1 is an end view of an internal combustion engine equipped with the device of the present invention, FIG. 2 is a partial sectional view taken along the line of FIG. 1, and FIG. Fig. 1 - Partial sectional view along the line, Fig. 4:
FIG. 3 is a partial cross-sectional view taken along line FIG. D...Dead space, E...Engine body, Op...Oil pump, _T1 , _T2 ...1st and 2nd winding transmission system, 1...Cylinder block, 8...Crankshaft, 13...Pump body, 17...As a driving wheel the first drive pulley of
20, 21... Valve drive camshaft, 23... Driven pulley as a driven wheel, 26... Endless belt as an endless transmission band, 28, 29... Balancer shaft, 35... First tension pulley as a tensioner, 55... Pump case , 56... Oil pump chamber, 57, 58... Gear, 61... Suction port, 62... Discharge port, 63... Suction passage, 64... Discharge passage, 65... Oil gear rally, 66
...Suction pipe.

Claims

[Scope of Claim for Utility Model Registration] A first winding transmission system _T1 that interlocks the crankshaft 8 and the valve drive camshafts 20, 21 is disposed close to the outer end surface of one side wall of the engine body E, and further A second winding transmission system _T2 that interlocks the crankshaft 8 and a pair of balancer shafts 28, 39 _is installed in parallel on the outside of the first winding transmission system _T1. A pair of interlocking gears 57 for driving reverse rotation of one balancer shaft 29
_. In the first wrap transmission system _T1 , the loose side of the endless transmission band 26 between the driving wheel 17 on the crankshaft 8 and the driven wheel 23 on the valve drive camshaft 21 is provided with the transmission band 26 on the outside. A tensioner 35 is disposed to press and tension the balancer shaft 29 inwardly, and a pair of gears 57 and 58 for driving the one balancer shaft 29 in reverse is disposed in a dead space D formed on the outside of the tensioner 35. A wrap-around transmission device for an internal combustion engine according to the above item. The pair of gears 57 and 58 are connected to the oil pump O.
The pump gear is housed in a pump chamber 56 defined by a pump body 13 fixed to the cylinder block 1 and a pump case 55, and the pump body 13 has a suction port 61 of the oil pump Op. and the discharge port 62,
2. The wrap transmission for an internal combustion engine according to claim 1, wherein a suction passage 63 and a discharge passage 64 are formed, which communicate with a suction pipe 66 in the oil pan 3 and an oil gear gallery 65 of the cylinder block 1, respectively.