JPH046711U - - Google Patents
Info
- Publication number
- JPH046711U JPH046711U JP4648590U JP4648590U JPH046711U JP H046711 U JPH046711 U JP H046711U JP 4648590 U JP4648590 U JP 4648590U JP 4648590 U JP4648590 U JP 4648590U JP H046711 U JPH046711 U JP H046711U
- Authority
- JP
- Japan
- Prior art keywords
- passage
- pressure chamber
- chamber
- reservoir chamber
- hydraulic tappet
- 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
Landscapes
- Valve-Gear Or Valve Arrangements (AREA)
- Valve Device For Special Equipments (AREA)
Description
第１図は本考案による一実施例を示すハイドロ
リツクタペツトの縦断面図、第２図は本考案によ
るバルブリフト特性図である。
１……シリンダヘツド、３……カム、３ａ……
ベース円、３ｂ……カム山、４……ハイドロリツ
クタペツト、５……ボデイ、６……プランジヤ、
６ａ……弁孔、１０……ボール弁、１１……圧力
室、１２……リザーバ室、１４……第２リザーバ
室、１７ａ……リーク通路、１７ｂ……通路、１
８……制御弁、１９……一方向弁。
FIG. 1 is a longitudinal sectional view of a hydraulic tappet showing an embodiment of the present invention, and FIG. 2 is a valve lift characteristic diagram according to the present invention. 1...Cylinder head, 3...Cam, 3a...
Base circle, 3b...cam mountain, 4...hydraulic tappet, 5...body, 6...plunger,
6a... Valve hole, 10... Ball valve, 11... Pressure chamber, 12... Reservoir chamber, 14... Second reservoir chamber, 17a... Leak passage, 17b... Passage, 1
8...Control valve, 19...One-way valve.
Claims (1)
ザーバ室とからなるハイドロリツクタペツトを具
備した動弁装置において、 上記ハイドロリツクタペツトの上記圧力室の油
圧を調圧するアキユムレータを設け、 上記ハイドロリツクタペツトの上記圧力室と上
記アキユムレータのリザーバ室とを、リーク通路
によつ連通し、 上記リーク通路に、エンジンの運転状態に基づ
いて通路断面積を絞り制御する制御弁またはオリ
フイスを設け、 上記制御弁またはオリフイスをバイパスして上
記リーク通路と上記アキユムレータのリザーバ室
とを連通する通路に、上記リザーバ室から圧力室
へのみ流通する一方向弁を配設したことを特徴と
する内燃機関の動弁装置。[Scope of Claim for Utility Model Registration] In a valve train equipped with a hydraulic tappet consisting of a pressure chamber and a reservoir chamber that are in sliding contact with the cam directly or indirectly, the hydraulic pressure of the pressure chamber of the hydraulic tappet is The pressure chamber of the hydraulic tappet and the reservoir chamber of the accumulator are communicated through a leak passage, and the cross-sectional area of the passage is narrowed based on the operating state of the engine. A one-way valve that allows flow only from the reservoir chamber to the pressure chamber is provided in a passage that bypasses the control valve or orifice and communicates the leak passage with the reservoir chamber of the accumulator. A valve train for an internal combustion engine characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4648590U JPH046711U (en) | 1990-04-27 | 1990-04-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4648590U JPH046711U (en) | 1990-04-27 | 1990-04-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH046711U true JPH046711U (en) | 1992-01-22 |
Family
ID=31561606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4648590U Pending JPH046711U (en) | 1990-04-27 | 1990-04-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH046711U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013501870A (en) * | 2009-08-07 | 2013-01-17 | ジェイコブス ビークル システムズ、インコーポレイテッド | Idling variable valve actuator with valve catch piston |
| JP2013040614A (en) * | 2012-11-22 | 2013-02-28 | Otics Corp | Resting device of internal combustion engine |
-
1990
- 1990-04-27 JP JP4648590U patent/JPH046711U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013501870A (en) * | 2009-08-07 | 2013-01-17 | ジェイコブス ビークル システムズ、インコーポレイテッド | Idling variable valve actuator with valve catch piston |
| JP2013040614A (en) * | 2012-11-22 | 2013-02-28 | Otics Corp | Resting device of internal combustion engine |
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