JPS6378125U

JPS6378125U -

Info

Publication number: JPS6378125U
Application number: JP17215586U
Authority: JP
Priority date: 1986-11-10
Filing date: 1986-11-10
Publication date: 1988-05-24

Description

[Brief explanation of drawings]

図は本考案の一実施例としてのエンジン冷却装
置を示すもので、第１図はその一部を破断して示
す側面図、第２図はそのカウンタウエイトを示す
模式図、第３図はその縦断面図、第４図はその主
要部分の分解斜視図、第５図はその３分割冷却系
の説明図である。１…シリンダブロツク、２…シリンダヘツド、
３…シリンダヘツドアツパ、４…シリンダヘツド
カバー、５…クランクカバー、６…オイルパン、
６Ａ…油溜め部、７…クランク軸、７Ａ…カウン
タウエイト、７Ａ―１…テーパ面、８…クランク
軸受、８ａ…クランク軸受のアツパ部、８ｂ…ク
ランク軸受のロア部、９…ボルト、１０…通しボ
ルト、１１…オイルポンプ、１２…ピストン、１
２Ａ…コネクチングロツド、１３…ライナ部、１
３ａ…フランジ部、１３ｂ…突条、１４Ａ〜１４
Ｄ…カバー、１５…オイルジヤケツト、１５Ａ…
油流入側オイルジヤケツト部分、１５Ｂ…油流出
側オイルジヤケツト部分、１６…柱部、１７…オ
イルギヤラリ、１８…高圧油路、１９…オイルク
リーナ、２０…高圧油パイプ、２２…チエツクバ
ルブ、２３…リターン路、２４…オーバーフロー
孔、２５…クランク室、２６…オイル戻し用オイ
ルギヤラリ、２７…弯曲板、２８…エンジン燃焼
室、２９…ウオータジヤケツト、２９ａ，２９ｂ
…環状溝、３０…ウオータギヤラリ、３０ａ，３
０ｂ…環状溝、３１…吸気ポート、３２…吸気マ
ニホールド、３３…排気ポート、３４…排気マニ
ホールド、３５…吸気弁、３６…排気弁、３７…
連通孔、３８…吸気カム軸、３９…排気カム軸、
４０…吸気弁ばね、４１…排気弁ばね、４２…カ
ム軸室、４３…下部油循環系、４４…冷却水循環
系、４５…上部油循環系、１０２…筒状ガイド柱
。 The figures show an engine cooling system as an embodiment of the present invention. Fig. 1 is a partially cutaway side view of the system, Fig. 2 is a schematic diagram showing its counterweight, and Fig. 3 is its side view. A vertical sectional view, FIG. 4 is an exploded perspective view of its main parts, and FIG. 5 is an explanatory diagram of its three-part cooling system. 1...Cylinder block, 2...Cylinder head,
3...Cylinder head opening, 4...Cylinder head cover, 5...Crank cover, 6...Oil pan,
6A...oil reservoir, 7...crankshaft, 7A...counterweight, 7A-1...tapered surface, 8...crank bearing, 8a...top part of crank bearing, 8b...lower part of crank bearing, 9...bolt, 10... Through bolt, 11...Oil pump, 12...Piston, 1
2A...Connecting rod, 13...Liner part, 1
3a...Flange portion, 13b...Protrusion, 14A-14
D...Cover, 15...Oil jacket, 15A...
Oil inflow side oil jacket part, 15B... Oil outflow side oil jacket part, 16... Pillar part, 17... Oil gear gallery, 18... High pressure oil path, 19... Oil cleaner, 20... High pressure oil pipe, 22... Check valve, 23 ...Return path, 24...Overflow hole, 25...Crank chamber, 26...Oil gear gallery for oil return, 27...Curved plate, 28...Engine combustion chamber, 29...Water jacket, 29a, 29b
...Annular groove, 30...Water gear lary, 30a, 3
0b...Annular groove, 31...Intake port, 32...Intake manifold, 33...Exhaust port, 34...Exhaust manifold, 35...Intake valve, 36...Exhaust valve, 37...
Communication hole, 38...Intake camshaft, 39...Exhaust camshaft,
40... Intake valve spring, 41... Exhaust valve spring, 42... Camshaft chamber, 43... Lower oil circulation system, 44... Cooling water circulation system, 45... Upper oil circulation system, 102... Cylindrical guide column.

Claims

[Scope of utility model registration request]

Cooling of the engine combustion chamber formed by the cylinder head, the cylinder block superimposed on the cylinder head, and the piston reciprocating within the engine cylinder of the cylinder block is separated between the cylinder head side and the cylinder block side. In order to achieve this, an upper oil circulation system that lubricates the cylinder head side and a lower oil circulation system that lubricates the cylinder block side are provided separately, and the lower oil circulation system is formed around the engine cylinder. An oil jacket for holding cooling oil, and an oil pan oil sump part that partially covers the bottom of a crank cover provided at the bottom of the cylinder block to receive return oil from the oil jacket, A counterweight provided on a crankshaft connected to a piston is configured as a return oil propeller that drives return oil to the oil pan oil sump by forming a tapered surface in a part. The engine cooling system.