JPS5838033U

JPS5838033U - Engine crankshaft support structure

Info

Publication number: JPS5838033U
Application number: JP13453681U
Authority: JP
Inventors: 謙二樫山; 楠木　喜三; 下岡　昭雄; 野村　一正
Original assignee: マツダ株式会社
Priority date: 1981-09-09
Filing date: 1981-09-09
Publication date: 1983-03-12

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は、従来周知のエンジンのクランクシャフト支持
部構造を示す部分的断面図、第２図、第３図および第４
図は、本考案の実施例を示す部分的断面図である。１・・・シリンダブロック、１ａ・・・シリンダブロッ
ク側面、２・・・ベアリングキャップ、２ａ・・・ベア
リングキャップ側面、３・・・ベアリング、４・・・ク
ランクシャフト、４ａ・・・クランクジャーナル、４ｂ
・・・クランクアーム、４Ｃ・・・クランクアーム側面
、５・・・オイル供給口、６・・・摺動部、７・・・シ
ール部材（第１実施例）、８・・・空間、９・・・シー
ル部材（第２実施例）、９ａ、　　９ｂ・・・シール部
材側面、１０・・・シール部材（第３実施例）、ｌｅａ
、１０ｂ・・・シール部材側面、１１・・・凹部、１２
・・・分岐通路。第１図第２図FIG. 1 is a partial cross-sectional view showing the structure of a crankshaft support part of a conventionally known engine, and FIGS.
The figure is a partial cross-sectional view showing an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Cylinder block, 1a... Cylinder block side, 2... Bearing cap, 2a... Bearing cap side, 3... Bearing, 4... Crankshaft, 4a... Crank journal, 4b
... Crank arm, 4C... Crank arm side surface, 5... Oil supply port, 6... Sliding part, 7... Seal member (first embodiment), 8... Space, 9 ...Seal member (second embodiment), 9a, 9b...Seal member side surface, 10...Seal member (third embodiment), lea
, 10b... Seal member side surface, 11... Recessed portion, 12
...branching passage. Figure 1 Figure 2

Claims

[Scope of utility model registration request]

(1) A bearing is provided to support the crank journal held between the cylinder block and the bearing cap, and an oil supply passage is provided that penetrates the cylinder block and the bearing and opens at the sliding portion between the bearing and the crank journal. The crankshaft support structure is characterized in that a ring-shaped seal member centered around the central axis of the crankshaft is interposed in the space formed by the side surface of the cylinder block, the side surface of the bearing cap, and the side surface of the crank arm opposing thereto. The structure of the crankshaft support part of the engine.

(2) The seal member is formed integrally with the bearing, and extends from the end of the bearing into the space formed by the side surface of the cylinder block, the side surface of the bearing cap, and the side surface of the crank arm opposing thereto, and is attached to the crank shirt ( An engine crankshaft support structure according to claim 1, which is constructed of a member bent in the central axis direction.

(3) The engine crankshaft support structure according to claim 1, wherein the sealing member is made of carbon.

(4) The engine crankshaft support structure according to claim 1, wherein the sealing member is pressed against the side surface of the crank arm by a pressing means.