JPH0317205U - - Google Patents
Info
- Publication number
- JPH0317205U JPH0317205U JP7861489U JP7861489U JPH0317205U JP H0317205 U JPH0317205 U JP H0317205U JP 7861489 U JP7861489 U JP 7861489U JP 7861489 U JP7861489 U JP 7861489U JP H0317205 U JPH0317205 U JP H0317205U
- Authority
- JP
- Japan
- Prior art keywords
- shim
- valve lifter
- valve
- end surface
- peripheral end
- 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
- 230000007246 mechanism Effects 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims 4
- 238000002485 combustion reaction Methods 0.000 claims 1
- 229910001234 light alloy Inorganic materials 0.000 claims 1
- 239000003562 lightweight material Substances 0.000 claims 1
- 239000011208 reinforced composite material Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 2
- 229910010271 silicon carbide Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
Landscapes
- Valve-Gear Or Valve Arrangements (AREA)
Description
第１図〜第５図は第１実施例を示し、第１図は
バルブリフタとシムとを重ねた状態の説明図、第
２図はバルブリフタの断面図、第３図はシムの平
面及び断面図、第４図はバルブリフタの平面及び
断面図、第５図はバルブリフタの製造法を示す説
明図、第６図は第２実施例におけるバルブリフタ
の製造法を示す説明図、第７図は従来の動弁機構
の断面図、第８図及び第９図は他の従来の動弁機
構を示し、第８図はバルブリフタとシムとを重ね
た状態の断面図、第９図はカムとシムとの接触時
の説明図である。
５…バルブリフタ、５１…凸部、６…シム、６
１…凹部、５５，６３…シム着脱用切欠部、６１
５…クリアランス、７０…溶融アルミニウム、７
０１…炭化珪素ウイスカの積層体、７０２…炭化
珪素粒子。
Figures 1 to 5 show the first embodiment, Figure 1 is an explanatory diagram of a state in which a valve lifter and a shim are overlapped, Figure 2 is a sectional view of the valve lifter, and Figure 3 is a plane and sectional view of the shim. , FIG. 4 is a plan view and a sectional view of a valve lifter, FIG. 5 is an explanatory diagram showing a method of manufacturing a valve lifter, FIG. 6 is an explanatory diagram showing a method of manufacturing a valve lifter in the second embodiment, and FIG. 7 is a diagram of a conventional valve lifter. A cross-sectional view of the valve mechanism. Figures 8 and 9 show other conventional valve mechanisms. Figure 8 is a cross-sectional view of the valve lifter and shim stacked together, and Figure 9 shows the contact between the cam and the shim. FIG. 5...Valve lifter, 51...Protrusion, 6...Shim, 6
1... Concavity, 55, 63... Notch for attaching and removing shim, 61
5... Clearance, 70... Molten aluminum, 7
01...Silicon carbide whisker laminate, 702...Silicon carbide particles.
Claims (1)
シムを嵌合したバルブリフタを配設してなる動弁
機構において、 該バルブリフタはその上面にシムの凹部と嵌合
させる凸部を有し、また該バルブリフタとシムと
はほぼ同じ外径寸法を有し、またバルブリフタの
周縁上端面とシムの周縁下端面との間の間隙は０
．２mm以下となし、かつ上記バルブリフタの周縁
上端面又は上記シムの周縁下端面の少なくとも一
方にはシム着脱用切欠部を設けてなり、 更に上記バルブリフタは、軽合金の強化複合材
などの軽量材により構成したことを特徴とする内
燃機関の動弁機構。[Scope of Claim for Utility Model Registration] In a valve drive mechanism in which a valve lifter is disposed between a cam and a valve stem and a shim that contacts the cam is fitted, the valve lifter is fitted with a recess of the shim on its upper surface. The valve lifter and the shim have approximately the same outer diameter, and the gap between the upper peripheral end surface of the valve lifter and the lower peripheral end surface of the shim is 0.
．． 2 mm or less, and at least one of the upper peripheral end surface of the valve lifter or the lower peripheral end surface of the shim is provided with a notch for attaching and removing the shim, and the valve lifter is made of a lightweight material such as a light alloy reinforced composite material. A valve mechanism for an internal combustion engine characterized by the following configuration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7861489U JPH0317205U (en) | 1989-07-03 | 1989-07-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7861489U JPH0317205U (en) | 1989-07-03 | 1989-07-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0317205U true JPH0317205U (en) | 1991-02-20 |
Family
ID=31622045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7861489U Pending JPH0317205U (en) | 1989-07-03 | 1989-07-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0317205U (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS573810B2 (en) * | 1975-02-07 | 1982-01-22 | ||
| JPS6041504B2 (en) * | 1980-04-28 | 1985-09-17 | 日本電信電話株式会社 | Illumination light source device for facsimile |
| JPH01130008A (en) * | 1987-11-13 | 1989-05-23 | Otai Iron Works Co Ltd | Valve lifter |
-
1989
- 1989-07-03 JP JP7861489U patent/JPH0317205U/ja active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS573810B2 (en) * | 1975-02-07 | 1982-01-22 | ||
| JPS6041504B2 (en) * | 1980-04-28 | 1985-09-17 | 日本電信電話株式会社 | Illumination light source device for facsimile |
| JPH01130008A (en) * | 1987-11-13 | 1989-05-23 | Otai Iron Works Co Ltd | Valve lifter |