JPH0214404U - - Google Patents
Info
- Publication number
- JPH0214404U JPH0214404U JP9157888U JP9157888U JPH0214404U JP H0214404 U JPH0214404 U JP H0214404U JP 9157888 U JP9157888 U JP 9157888U JP 9157888 U JP9157888 U JP 9157888U JP H0214404 U JPH0214404 U JP H0214404U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- pressure oil
- oil chamber
- plunger
- 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.)
- Granted
Links
- 238000005192 partition Methods 0.000 claims 2
- 238000002485 combustion reaction Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Valve-Gear Or Valve Arrangements (AREA)
Description
第１図は本考案の一実施例を示す断面図、第２
図はカムシヤフトの斜視図、第３図はバケツトお
よびリテーナの分解斜視図、第４図Ａ，Ｂ，Ｃ，
Ｄおよび第５図Ａ，Ｂはそれぞれ作用を示す線図
である。
１……カシヤフト、２……開弁用カム、３……
閉弁用カム、４……バルブ、７……バケツト、１
１……タペツト、１４……プランジヤ、１６……
高圧油室、１７……低圧油室、１９……オイルギ
ヤラリ。
Fig. 1 is a sectional view showing one embodiment of the present invention;
The figure is a perspective view of the camshaft, Figure 3 is an exploded perspective view of the bucket and retainer, Figure 4 is A, B, C,
D and FIGS. 5A and 5B are diagrams showing the effects, respectively. 1... Cash shaft, 2... Valve opening cam, 3...
Valve closing cam, 4...Valve, 7...Bucket, 1
1... Tappet, 14... Plunger, 16...
High pressure oil chamber, 17...Low pressure oil chamber, 19...Oil gear rally.
補正 昭６３．１０．１７
図面の簡単な説明を次のように補正する。
明細書第１０頁第１４行から第１５行にわたり
、「第４図Ａ，Ｂ，Ｃ，Ｄおよび第５図Ａ，Ｂは
それぞれ作用を示す線図である。」とあるのを「
第４図、第５図および第６図はそれぞれ作用を示
す線図である。」と訂正する。Amendment October 17, 1981 The brief description of the drawing is amended as follows. From line 14 to line 15 on page 10 of the specification, the phrase "Fig. 4 A, B, C, D and Fig. 5 A, B are diagrams each showing the operation." is replaced with "
FIG. 4, FIG. 5, and FIG. 6 are diagrams each showing the effect. ” he corrected.
Claims (1)
、バルブを押し開く開弁用カムと、バルブを引き
上げる閉弁用カムとをそれぞれ形成し、バルブの
頂部には開弁用カムを摺接させるタペツトを設け
る一方、カムシヤフトを挿通してバルブの軸方向
に摺動自在なバケツトをバルブに連結するととも
に、閉弁用カムに摺接するプランジヤを設け、バ
ケツトにこのプランジヤを摺動自在に嵌挿させる
ガイド部と、このプランジヤの内外に高圧油室と
低圧油室とに仕切る隔壁部をそれぞれ形成し、こ
の低圧油室に加圧オイルを導く油通路を形成し、
低圧油室から高圧油室へ流入しようとするオイル
に対して開弁するチエツク弁を設けたことを特徴
とする内燃機関の弁強制開閉装置。 A camshaft that rotates in synchronization with the engine is formed with an opening cam that pushes the valve open and a valve closing cam that pulls up the valve, and a tappet on the top of the valve that allows the valve opening cam to slide into contact. At the same time, a guide section connects a bucket to the valve, which is slidable in the axial direction of the valve by inserting the camshaft, and is provided with a plunger that comes into sliding contact with the valve-closing cam, and allows the plunger to be slidably inserted into the bucket. and partition walls are formed inside and outside of this plunger to partition into a high pressure oil chamber and a low pressure oil chamber, and an oil passage is formed to guide pressurized oil to this low pressure oil chamber,
A valve forced opening/closing device for an internal combustion engine, characterized in that it is provided with a check valve that opens when oil attempts to flow from a low-pressure oil chamber to a high-pressure oil chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9157888U JPH0625609Y2 (en) | 1988-07-11 | 1988-07-11 | Valve forced opening / closing device for internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9157888U JPH0625609Y2 (en) | 1988-07-11 | 1988-07-11 | Valve forced opening / closing device for internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0214404U true JPH0214404U (en) | 1990-01-30 |
| JPH0625609Y2 JPH0625609Y2 (en) | 1994-07-06 |
Family
ID=31316050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9157888U Expired - Lifetime JPH0625609Y2 (en) | 1988-07-11 | 1988-07-11 | Valve forced opening / closing device for internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0625609Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007064114A (en) * | 2005-08-31 | 2007-03-15 | Nissan Motor Co Ltd | Valve gear for internal combustion engine |
| JP2008121608A (en) * | 2006-11-14 | 2008-05-29 | Honda Motor Co Ltd | Cam for forced on/off valve and method for establishing cam profile for cam for forced on/off valve |
-
1988
- 1988-07-11 JP JP9157888U patent/JPH0625609Y2/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007064114A (en) * | 2005-08-31 | 2007-03-15 | Nissan Motor Co Ltd | Valve gear for internal combustion engine |
| JP4508044B2 (en) * | 2005-08-31 | 2010-07-21 | 日産自動車株式会社 | Valve operating device for internal combustion engine |
| JP2008121608A (en) * | 2006-11-14 | 2008-05-29 | Honda Motor Co Ltd | Cam for forced on/off valve and method for establishing cam profile for cam for forced on/off valve |
| JP4627526B2 (en) * | 2006-11-14 | 2011-02-09 | 本田技研工業株式会社 | Cam profile setting method for forcibly opening / closing cam and forcibly opening / closing cam |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0625609Y2 (en) | 1994-07-06 |
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