JPH0267008U - - Google Patents
Info
- Publication number
- JPH0267008U JPH0267008U JP14628188U JP14628188U JPH0267008U JP H0267008 U JPH0267008 U JP H0267008U JP 14628188 U JP14628188 U JP 14628188U JP 14628188 U JP14628188 U JP 14628188U JP H0267008 U JPH0267008 U JP H0267008U
- Authority
- JP
- Japan
- Prior art keywords
- tappet
- valve
- valve stem
- hole
- cam
- 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
- 230000002093 peripheral effect Effects 0.000 claims 1
Landscapes
- Valve-Gear Or Valve Arrangements (AREA)
Description
第１〜５図は本考案の一実施例としてのタペツ
ト式動弁装置を示すもので、第１図はその側断面
図、第２図Ａはバルブの側面図、第２図Ｂは同底
面図、第３図Ａはインナタペツトの平面図、第３
図Ｂはインナタペツトの側断面図、第４図Ａはア
ウタタペツトの平面図、第４図Ｂは同側断面図、
第４図Ｃは同底面図、第５図はステムシール部の
拡大側断面図であり、第６図は従来のタペツト式
動弁装置の側断面図である。
１……バルブステム、２……タペツト、３……
カム、４ａ，４ｂ……シリンダヘツド、５……タ
ペツトホール、６……アウタタペツト、７……イ
ンナタペツト、８……バルブスプリング、１３…
…チエツクバルブ、１５……圧油室。
Figures 1 to 5 show a tappet type valve operating device as an embodiment of the present invention. Figure 1 is a side sectional view thereof, Figure 2A is a side view of the valve, and Figure 2B is a bottom view of the same. Figure 3A is a plan view of the inner tappet;
Figure B is a side sectional view of the inner tappet, Figure 4A is a plan view of the outer tappet, Figure 4B is a sectional view of the same side,
FIG. 4C is a bottom view of the same, FIG. 5 is an enlarged side sectional view of the stem seal portion, and FIG. 6 is a side sectional view of a conventional tapepet type valve operating device. 1... Valve stem, 2... Tappet, 3...
Cam, 4a, 4b... Cylinder head, 5... Tappet hole, 6... Outer tappet, 7... Inner tappet, 8... Valve spring, 13...
...Check valve, 15...Pressure oil chamber.
Claims (1)
外周面をシリンダヘツドのタペツトホールの内周
面に沿い案内されるアウタタペツトと、同アウタ
タペツトの内側で上下動のみ許容されて案内され
るインナタペツトと、同インナタペツトとともに
上下動してバルブ開閉を行なうバルブステムと、
上記のアウタタペツトとインナタペツトとの間に
形成されて上記アウタタペツトのカム駆動面を駆
動カムに常時当接させるための圧油室とをそなえ
、上記インナタペツトの中心部に雌ねじ孔が形成
されて、同雌ねじ孔に螺合する雄ねじ部が上記バ
ルブステムの上端部に形成されるとともに、同バ
ルブステムをバルブ閉鎖方向に付勢するバルブス
プリングの上端が上記インナタペツトの下側に支
承されていることを特徴とする、タペツト式動弁
装置。 The outer tappet is formed into a cylindrical shape with a cam driving surface at the upper end and is guided along the inner peripheral surface of the tappet hole of the cylinder head, and the inner tappet is guided inside the outer tappet while only being allowed to move up and down. A valve stem that opens and closes the valve by moving up and down together with the inner tappet;
A pressure oil chamber is formed between the outer tappet and the inner tappet to keep the cam drive surface of the outer tappet in constant contact with the drive cam, and a female threaded hole is formed in the center of the inner tappet, and a female screw hole is formed in the center of the inner tappet. The valve stem is characterized in that a male threaded portion that is threaded into the hole is formed at the upper end of the valve stem, and that the upper end of the valve spring that biases the valve stem in the valve closing direction is supported on the lower side of the inner tappet. Tappet type valve gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14628188U JPH0267008U (en) | 1988-11-09 | 1988-11-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14628188U JPH0267008U (en) | 1988-11-09 | 1988-11-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0267008U true JPH0267008U (en) | 1990-05-21 |
Family
ID=31415623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14628188U Pending JPH0267008U (en) | 1988-11-09 | 1988-11-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0267008U (en) |
-
1988
- 1988-11-09 JP JP14628188U patent/JPH0267008U/ja active Pending