JPS54121317A - Valve lift varying mechanism for internal combustion engine - Google Patents
Valve lift varying mechanism for internal combustion engineInfo
- Publication number
- JPS54121317A JPS54121317A JP2824878A JP2824878A JPS54121317A JP S54121317 A JPS54121317 A JP S54121317A JP 2824878 A JP2824878 A JP 2824878A JP 2824878 A JP2824878 A JP 2824878A JP S54121317 A JPS54121317 A JP S54121317A
- Authority
- JP
- Japan
- Prior art keywords
- recess
- buffer
- cylinder
- oil
- columnar part
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
PURPOSE: To prevent impact noises and protect a valve seat from damage, by providing a disc flange on a cylinder for opening/closing a valve and by supplying buffer oil of a support portion for installing a hydraulic tappet fitted with the cylinder.
CONSTITUTION: The disc flange 54 is provided on the top of the inner cylinder 53 of the hydraulic tappet 50. The disc flange consists of a columnar part 54a and a conical part 54b extending from the bottom of the columnar part. A recess 22 is provided on the support portion 21. The columnar part 54a is tightly fitted in the recess. An oil reserve ring 26 is provided around the recess 22 to surely collect the oil. When the cylinder 53 is lifted, a buffer oil supply passage extending from a groove 27 to the recess 22 through a groove 56 is formed to fill the buffer oil in the recess. Thus, a smooth valve lift curve similar to a buffer curve shown by the full line is obtained to gradually raise the degree of the buffer action. When the cylinder 53 has reached the bottom deal center, a large buffer effect is produced.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2824878A JPS54121317A (en) | 1978-03-14 | 1978-03-14 | Valve lift varying mechanism for internal combustion engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2824878A JPS54121317A (en) | 1978-03-14 | 1978-03-14 | Valve lift varying mechanism for internal combustion engine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54121317A true JPS54121317A (en) | 1979-09-20 |
Family
ID=12243270
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2824878A Pending JPS54121317A (en) | 1978-03-14 | 1978-03-14 | Valve lift varying mechanism for internal combustion engine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54121317A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5451029A (en) * | 1992-06-05 | 1995-09-19 | Volkswagen Ag | Variable valve control arrangement |
WO2013118634A1 (en) * | 2012-02-10 | 2013-08-15 | アイシン精機株式会社 | Lash adjuster |
-
1978
- 1978-03-14 JP JP2824878A patent/JPS54121317A/en active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5451029A (en) * | 1992-06-05 | 1995-09-19 | Volkswagen Ag | Variable valve control arrangement |
WO2013118634A1 (en) * | 2012-02-10 | 2013-08-15 | アイシン精機株式会社 | Lash adjuster |
CN104114822A (en) * | 2012-02-10 | 2014-10-22 | 爱信精机株式会社 | Lash adjuster |
JPWO2013118634A1 (en) * | 2012-02-10 | 2015-05-11 | アイシン精機株式会社 | Rush adjuster |
US9157338B2 (en) | 2012-02-10 | 2015-10-13 | Aisin Seiki Kabushiki Kaisha | Lash adjuster |
CN104114822B (en) * | 2012-02-10 | 2016-10-12 | 爱信精机株式会社 | Clearance adjuster |
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