JPS59116623U

JPS59116623U - internal combustion engine bearings

Info

Publication number: JPS59116623U
Application number: JP903483U
Authority: JP
Inventors: 野村　伸也; 修黒田
Original assignee: トヨタ自動車株式会社
Priority date: 1983-01-27
Filing date: 1983-01-27
Publication date: 1984-08-07

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図は従来の内燃機関の軸受の一部断面図、第２図は
第１図の■−■線に沿う断面図、第３図は本考案の内燃
機関の軸受の要部縦断面図、第４図は第３図の要部拡大
断面図、第５図は第４図の■−■線に沿う断面図、第６
図は第５図の状態から更にジャーナル部が回転した状態
の断面図、である。４・・・・・・カムシャフト、４ａ・・・・・・ジャー
ナル部、４ｂ・・・・・・プランジャ室、４ｃ・・曲オ
イル通路、４ｄ・・・・・・プランジャ出入用開口、４
ｅ・・・・・・オイルホール、４ｆ・・・・・・カムシ
ャフトの中心軸、４ｇ・・・用カム、５・・・・・・シ
リンダヘッド、６・・・・・・ベアリングキャップ、５
ａ、　　６ａ・・・・・・軸受摺動面、６ｂ・・曲圧力
室、７・・・・・・プランジャ、８・・・・・・連結棒
、９・・間質量体、１０・・・・・−ｎコイルバネ。６０６／　　　５ｂＶFig. 1 is a partial sectional view of a conventional bearing for an internal combustion engine, Fig. 2 is a sectional view taken along the line ■-■ in Fig. 1, and Fig. 3 is a vertical sectional view of a main part of the bearing for an internal combustion engine according to the present invention. , Fig. 4 is an enlarged sectional view of the main part of Fig. 3, Fig. 5 is a sectional view along the line ■-■ in Fig. 4, and Fig. 6 is an enlarged sectional view of the main part of Fig. 3.
This figure is a cross-sectional view of a state in which the journal portion is further rotated from the state shown in FIG. 5. 4...Camshaft, 4a...Journal portion, 4b...Plunger chamber, 4c...Curved oil passage, 4d...Opening for plunger entry and exit, 4
e...oil hole, 4f...camshaft center axis, 4g...cam, 5...cylinder head, 6...bearing cap, 5
a, 6a... Bearing sliding surface, 6b... Curved pressure chamber, 7... Plunger, 8... Connecting rod, 9... Intermediate mass body, 10... ...-n coil spring. 606/5b V

Claims

[Scope of utility model registration request]

A plunger chamber is formed in the journal portion of the rotating shaft and communicates with the oil passage in the rotating shaft and extends in the radial direction of the rotating shaft, and one end of the plunger chamber is provided with an opening for entering and exiting the plunger that opens onto the bearing sliding surface. an oil hole that is always open on the bearing sliding surface at the other end of the plunger chamber, and a plunger that is always elastically biased in the projecting direction is slidably accommodated in the plunger chamber; A mass body housed in the plunger chamber is connected to the mass body, the mass body is disposed on the opposite side of the plunger with respect to the central axis of the rotating shaft, and a part of the bearing sliding surface communicates with the plunger entrance/exit opening. A bearing for an internal combustion engine, characterized in that a pressure chamber is formed therein.