JPS60114211U - Poppet valve device for internal combustion engine - Google Patents
Poppet valve device for internal combustion engineInfo
- Publication number
- JPS60114211U JPS60114211U JP213084U JP213084U JPS60114211U JP S60114211 U JPS60114211 U JP S60114211U JP 213084 U JP213084 U JP 213084U JP 213084 U JP213084 U JP 213084U JP S60114211 U JPS60114211 U JP S60114211U
- Authority
- JP
- Japan
- Prior art keywords
- valve stem
- limit position
- movable member
- air
- upper limit
- 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 Device For Special Equipments (AREA)
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) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第1図は本考案の実施例を示す縦断側面図、第2図は本
考案の他の実施例を示す縦断側面図、第3図は冷却構造
を備えたポペット弁装置の例を示す縦断側面図である。
1・・・可動部材、15・・田ツドピストン部、2・・
・空気バネピストン、21・・・空気バネシリンダ、2
4・・・空気バネ室、3・・・弁箱、4・・・第1のシ
リンダ部、43・・・付勢手段の一部を構成する付勢用
空気室、5・・・第2のシリンダ部、51.57・・・
第2のシリンダ部の内端面、52.58・・・弁棒の上
端部の頂面、53・・・緩衝用空気室、54・・・第2
の通気′孔、55・・・空気放出孔、6・・・弁棒、6
1・・・ポペット弁、63・・・ロントビストン部、6
4・・・被押圧部、71・・・油圧シリンダ、72・・
・油圧タペット。
−f7〜j −−−”
L−−−−一一−−−−乃+□ −Fig. 1 is a longitudinal side view showing an embodiment of the present invention, Fig. 2 is a longitudinal side view showing another embodiment of the invention, and Fig. 3 is a longitudinal side view showing an example of a poppet valve device equipped with a cooling structure. It is a diagram. 1...Movable member, 15...Top piston part, 2...
・Air spring piston, 21...Air spring cylinder, 2
4... Air spring chamber, 3... Valve box, 4... First cylinder portion, 43... Biasing air chamber forming a part of biasing means, 5... Second Cylinder part, 51.57...
Inner end surface of second cylinder portion, 52.58...Top surface of upper end of valve stem, 53...Buffer air chamber, 54...Second
ventilation hole, 55... air release hole, 6... valve stem, 6
1... Poppet valve, 63... Long piston part, 6
4...Pressed part, 71...Hydraulic cylinder, 72...
・Hydraulic tappet. −f7〜j −−−” L−−−−1−−−−ノ+□ −
Claims (1)
機構により前記空気バネの復元力に抗して押し下げられ
る可動部材と、この可動部材に軸方向に摺動自在に嵌合
して組み合わされ、下端にポペット弁を備えた弁棒と、
この弁棒の下限位置を規$1するための規謂手投と、前
記弁棒を上限位置にて上方側に付勢し、可動部材が下限
位置にあるときには付勢を解除する付勢手段と、上限位
置にある弁棒が可動部材を介して抑圧機構よりの押圧を
受けるよう、弁棒に形成された被押圧部と、前記弁棒の
上方側への摺動により容積が減少するよう、可動部材と
弁棒との間に形成された緩衝用空気室と、この゛緩衝用
空気室と空気バネ室とを連通ずるよう形成された、弁棒
が上限位置にあるときには閉じられ、弁棒が下限位置に
あるときには開かれる通気孔と、前記緩衝用空気室と外
気とを゛連通ずるよう形成された空気放出孔とを有し、
前記弁棒は、可動部材の上限位置停止時に緩衝用空気室
の空気圧に抗して慣性力により弁棒の上限位置まで上昇
することを特徴とする内燃機関用ポペット弁装置。An air spring formed by introducing compressed air into an air spring chamber, a movable member that is pushed down by a pressing mechanism against the restoring force of the air spring, and a combination that is fitted to the movable member so as to be slidable in the axial direction. and a valve stem with a poppet valve at the lower end;
A so-called hand throw for regulating the lower limit position of the valve stem, and a biasing means that biases the valve stem upward at the upper limit position and releases the bias when the movable member is at the lower limit position. Then, so that the valve stem at the upper limit position receives pressure from the suppression mechanism via the movable member, the volume is reduced by the pressed part formed on the valve stem and the valve stem sliding upward. , a buffer air chamber formed between the movable member and the valve stem, and a buffer air chamber formed to communicate with the air spring chamber, which is closed when the valve stem is at the upper limit position; It has a ventilation hole that is opened when the rod is at the lower limit position, and an air release hole that is formed to communicate the buffer air chamber with the outside air,
A poppet valve device for an internal combustion engine, wherein the valve stem is raised to the upper limit position of the valve stem by inertia against air pressure in a buffer air chamber when the movable member is stopped at the upper limit position.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP213084U JPS60114211U (en) | 1984-01-10 | 1984-01-10 | Poppet valve device for internal combustion engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP213084U JPS60114211U (en) | 1984-01-10 | 1984-01-10 | Poppet valve device for internal combustion engine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS60114211U true JPS60114211U (en) | 1985-08-02 |
Family
ID=30475517
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP213084U Pending JPS60114211U (en) | 1984-01-10 | 1984-01-10 | Poppet valve device for internal combustion engine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS60114211U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62116105U (en) * | 1986-01-13 | 1987-07-23 |
-
1984
- 1984-01-10 JP JP213084U patent/JPS60114211U/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62116105U (en) * | 1986-01-13 | 1987-07-23 |
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