JPH01127906U - - Google Patents
Info
- Publication number
- JPH01127906U JPH01127906U JP2475888U JP2475888U JPH01127906U JP H01127906 U JPH01127906 U JP H01127906U JP 2475888 U JP2475888 U JP 2475888U JP 2475888 U JP2475888 U JP 2475888U JP H01127906 U JPH01127906 U JP H01127906U
- Authority
- JP
- Japan
- Prior art keywords
- plug
- diameter cylindrical
- plunger
- cap
- inner diameter
- 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
- 230000004323 axial length Effects 0.000 claims 3
- 230000000149 penetrating effect Effects 0.000 claims 2
- 230000001105 regulatory effect Effects 0.000 claims 2
- 230000000717 retained effect Effects 0.000 description 1
Landscapes
- Valve-Gear Or Valve Arrangements (AREA)
Description
第１図は、エンジン停止後のギヤラリ９の負圧
によつてリザーバ内の油が抜け出た状態の、従来
例を示す断面図であり、第２図は、エンジン停止
後の状態でリザーバ内に油が保たれている、即ち
プラグが閉じている、本考案の第１実施例の断面
図であり、第３図は、エンジン作動中の油の流れ
を示す（プラグは開いている。）本考案の第１実
施例の断面図であり、第４図は、本考案の第１実
施例のプランジヤ頭部を図示する拡大図であり、
第５図は、本考案の第２実施例のプランジヤ頭部
を図示する拡大図であり、第６図は、本考案の第
３実施例のプランジヤ頭部を図示する拡大図であ
り、第７図は、第３実施例のプラグの斜視図であ
り、第８図は、第４実施例のプラグの斜視図であ
る。
１……シリンダヘツド、１１……有底円筒ボデ
イ、１２……プランジヤ、１８……リザーバ室、
１９……高圧室、３０……プラグ、４０……プラ
グ支承部。
FIG. 1 is a cross-sectional view of a conventional example in which oil in the reservoir is discharged due to the negative pressure of the gear rally 9 after the engine has stopped, and FIG. 3 is a sectional view of the first embodiment of the invention in which oil is retained, i.e. the plug is closed; FIG. 3 shows the flow of oil during engine operation (the plug is open); FIG. 4 is a sectional view of the first embodiment of the invention, and FIG. 4 is an enlarged view showing the plunger head of the first embodiment of the invention;
FIG. 5 is an enlarged view of the plunger head according to the second embodiment of the present invention, FIG. 6 is an enlarged view of the plunger head of the third embodiment of the present invention, and FIG. The figure is a perspective view of the plug of the third embodiment, and FIG. 8 is a perspective view of the plug of the fourth embodiment. 1... Cylinder head, 11... Bottomed cylindrical body, 12... Plunger, 18... Reservoir chamber,
19...High pressure chamber, 30...Plug, 40...Plug support.
Claims (1)
摺動自在に嵌入され、該ボデイ底部と該プランジ
ヤ底部との間に高圧室が形成され、前記プランジ
ヤ内にリザーバ室が形成され、前記プランジヤ底
部には前記リザーバ室から高圧室への流れのみを
可能にするチエツク弁が設けられ、該プランジヤ
のチエツク弁と反対側の端部には小径の開口部が
設けられ、前記リザーバ室は前記ボデイ周壁を貫
通する第１給油口と前記プランジヤ周壁を貫通す
る第２給油口を介して外部と連通する油圧式バル
ブラツシユアジヤスタにおいて、 上端に大径円筒部、中間に小径円筒部、下端に
ネジ部を有し、該ネジ部の外径が前記大径円筒部
よりも小さく且つ前記小径円筒部よりも大きい流
量調節プラグが、該プラグの前記大径円筒部より
も微かに大きい内径を有する大内径部と軸線方向
長さが前記プラグの前記小径部より短く且つ前記
プラグネジ部に対応して雄ネジが設けられた雄ネ
ジ部とから成る、前記プランジヤ上部に設けられ
たプラグ支承部に、前記プラグ雄ネジ部が前記支
承部雌ネジ部を通過させた状態で組付られたこと
を特徴とする油圧式バルブラツシユアジヤスタ。 (2) 前記プラグの大径円筒部と小径円筒部との
間で半径方向に延びる継ぎ面と、前記プラグ支承
部の大内径部と雌ネジ部との間で半径方向に伸び
るシート面とが当接した時に実質的に液密になる
ことを特徴とする、請求項(1)記載の油圧式バル
ブラツシユアジヤスタ。 (3) 前記プラグの前記大径円筒部の上部に外径
が該大径円筒部よりも大きな円筒状キヤツプ部を
形成し、前記プラグ支承部の前記大内径部の上部
に内径が前記円筒状キヤツプ部の外径よりも僅か
に大きなキヤツプ受け部を形成し、前記プラグの
前記大径円筒部の軸線方向長さが前記プラグ支承
部の前記大内径部の軸線方向長さよりも短く形成
し、前記キヤツプ部と前記大径円筒部との間で半
径方向に延びる継ぎ面と前記キヤツプ受け部と前
記大内径部との間で半径方向に延びるシート面と
が当接した時に実質的に液密になることを特徴と
する、請求項(1)記載の油圧式バルブラツシユア
ジヤスタ。 (4) 上部に大径円筒部が形成され、下部に小径
円筒部が形成され、該小径円筒部には少なくとも
一つの突起を備えた流量調節プラグを有すること
を特徴とする請求項(1)記載の油圧式バルブラツ
シユアジヤスタ。 (5) 上部に大径円筒部が形成され、下部に軸方
向に伸びる単数または複数の脚３３―Ｃが設けら
れ、該脚には半径方向に伸びる突起３４―Ｃが備
えられている流量調節プラグを有することを特徴
とする請求項(1)記載の油圧式バルブラツシユア
ジヤスタ。[Claims for Utility Model Registration] (1) A hollow cylindrical plunger is slidably fitted into a bottomed cylindrical body, a high pressure chamber is formed between the bottom of the body and the bottom of the plunger, and a reservoir is provided in the plunger. A check valve is provided at the bottom of the plunger to allow flow only from the reservoir chamber to the high pressure chamber, and a small diameter opening is provided at the opposite end of the plunger from the check valve. , wherein the reservoir chamber communicates with the outside through a first oil supply port penetrating the body circumferential wall and a second oil supply port penetrating the plunger circumferential wall; a flow rate regulating plug having a small diameter cylindrical part at the bottom thereof and a threaded part at the lower end, the outer diameter of the threaded part being smaller than the large diameter cylindrical part and larger than the small diameter cylindrical part; a large inner diameter portion having a slightly larger inner diameter; and a male threaded portion having a shorter axial length than the small diameter portion of the plug and having a male thread corresponding to the plug threaded portion. 1. A hydraulic valve latch adjuster, characterized in that the plug male screw portion is assembled to the plug support portion with the plug male screw portion passing through the support portion female screw portion. (2) A joint surface extending radially between the large diameter cylindrical portion and the small diameter cylindrical portion of the plug, and a seat surface extending radially between the large inner diameter portion and the female threaded portion of the plug support portion. 2. The hydraulic valve lash adjuster according to claim 1, wherein the valve lash adjuster becomes substantially liquid-tight when abutted. (3) A cylindrical cap portion having an outer diameter larger than the large diameter cylindrical portion is formed at an upper portion of the large diameter cylindrical portion of the plug, and a cylindrical cap portion having an inner diameter larger than the large diameter cylindrical portion is formed at an upper portion of the large inner diameter portion of the plug support portion. forming a cap receiving portion slightly larger than the outer diameter of the cap portion, and forming an axial length of the large diameter cylindrical portion of the plug to be shorter than an axial length of the large inner diameter portion of the plug supporting portion; When the joint surface extending radially between the cap portion and the large diameter cylindrical portion and the seat surface extending radially between the cap receiving portion and the large inner diameter portion come into contact with each other, the cap is substantially liquid-tight. The hydraulic valve brush adjuster according to claim (1), characterized in that: (4) Claim (1) characterized in that a large diameter cylindrical part is formed in the upper part, a small diameter cylindrical part is formed in the lower part, and the small diameter cylindrical part has a flow rate regulating plug provided with at least one protrusion. Hydraulic valve lash adjuster as described. (5) A flow rate adjustment device in which a large-diameter cylindrical portion is formed in the upper part, one or more legs 33-C extending in the axial direction are provided in the lower part, and the legs are provided with protrusions 34-C extending in the radial direction. 2. The hydraulic valve latch adjuster according to claim 1, further comprising a plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988024758U JPH07651Y2 (en) | 1988-02-26 | 1988-02-26 | Hydraulic valve lash adjuster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988024758U JPH07651Y2 (en) | 1988-02-26 | 1988-02-26 | Hydraulic valve lash adjuster |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01127906U true JPH01127906U (en) | 1989-08-31 |
| JPH07651Y2 JPH07651Y2 (en) | 1995-01-11 |
Family
ID=31244891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988024758U Expired - Lifetime JPH07651Y2 (en) | 1988-02-26 | 1988-02-26 | Hydraulic valve lash adjuster |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07651Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007024030A (en) * | 2005-06-13 | 2007-02-01 | Nissan Motor Co Ltd | Decompression device of engine |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4184464A (en) * | 1977-05-13 | 1980-01-22 | Stanadyne, Inc. | Recirculation groove for hydraulic lash adjuster |
| JPS5795407U (en) * | 1980-12-03 | 1982-06-11 |
-
1988
- 1988-02-26 JP JP1988024758U patent/JPH07651Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4184464A (en) * | 1977-05-13 | 1980-01-22 | Stanadyne, Inc. | Recirculation groove for hydraulic lash adjuster |
| JPS5795407U (en) * | 1980-12-03 | 1982-06-11 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007024030A (en) * | 2005-06-13 | 2007-02-01 | Nissan Motor Co Ltd | Decompression device of engine |
| JP4595816B2 (en) * | 2005-06-13 | 2010-12-08 | 日産自動車株式会社 | Engine decompression device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07651Y2 (en) | 1995-01-11 |