JPH036006U - - Google Patents
Info
- Publication number
- JPH036006U JPH036006U JP6538189U JP6538189U JPH036006U JP H036006 U JPH036006 U JP H036006U JP 6538189 U JP6538189 U JP 6538189U JP 6538189 U JP6538189 U JP 6538189U JP H036006 U JPH036006 U JP H036006U
- Authority
- JP
- Japan
- Prior art keywords
- cam
- cam holder
- speed
- holder
- camshafts
- 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
Landscapes
- Valve-Gear Or Valve Arrangements (AREA)
- Valve Device For Special Equipments (AREA)
- Vibration Prevention Devices (AREA)
Description
第１図乃至第１１図は本考案エンジンを示すも
ので、第１図はＶ型エンジンの正面図、第２図は
その左側のバンクのシリンダヘツドの平面図、第
３図乃至第５図は夫々第２図の−線、−
線及び−線截断面図、第６図はカムホルダの
平面図、第７図はその下面図、第８図及び第９図
は夫々第６図の−線及び−線截断面図、
第１０図はビーム部材の下面図、第１１図はバル
ブ切換機構を示す図、第１２図は従来例カムホル
ダの平面図である。
２……吸気弁、３……排気弁、４……シリンダ
ヘツド、５，６……カム軸、５ａ，６ａ……低速
カム、５ａ，６ｂ……高速カム、２２，２４……
支持部、２３……吸気側カムホルダ部、２５……
排気側カムホルダ部、２７……カムホルダ、２８
……リブ、２９……ビーム部材、３１，３５……
油路。
Figures 1 to 11 show the engine of the present invention. Figure 1 is a front view of the V-type engine, Figure 2 is a plan view of the left bank cylinder head, and Figures 3 to 5 are - lines and - lines in Figure 2, respectively.
6 is a plan view of the cam holder, FIG. 7 is a bottom view thereof, FIGS. 8 and 9 are sectional views taken along lines and -, respectively, of FIG. 6,
FIG. 10 is a bottom view of the beam member, FIG. 11 is a diagram showing a valve switching mechanism, and FIG. 12 is a plan view of a conventional cam holder. 2... Intake valve, 3... Exhaust valve, 4... Cylinder head, 5, 6... Camshaft, 5a, 6a... Low speed cam, 5a, 6b... High speed cam, 22, 24...
Support part, 23... Intake side cam holder part, 25...
Exhaust side cam holder part, 27...Cam holder, 28
...Rib, 29...Beam member, 31, 35...
Oil road.
Claims (1)
ーナル部を上方から軸受する複数の支持部を有す
る吸気側カムホルダ部と、排気弁用のカム軸のジ
ヤーナル部を上方から軸受する複数の支持部を有
する排気側カムホルダ部とを一体に連結して成る
吸排気共用のカムホルダを取付け、該カムホルダ
の前記各カムホルダ部に、該各カムホルダ部の前
記各支持部間に跨らせて前記各カム軸のカムの回
転軌跡を少なくとも両側から覆うリブを形成した
ことを特徴とするＤＯＨＣ型エンジン。 ２ 前記カムホルダの前記リブに、前記各カム軸
のジヤーナル部に潤滑油を供給するジヤーナル部
用油路を穿設したことを特徴とする請求項１記載
のＤＯＨＣ型エンジン。 ３ 前記カムホルダの前記リブに、前記各カム軸
のカムの外面に潤滑油を供給するカム用油路を穿
設したことを特徴とする請求項１記載のＤＯＨＣ
型エンジン。 ４ 前記カムホルダに、前記各カムホルダ部の上
面を覆う該カムホルダに一体又は別体のビーム部
材を設けたことを特徴とする請求項１乃至３のい
ずれかに記載のＤＯＨＣ型エンジン。 ５ シリンダヘツドに、吸気弁用のカム軸のジヤ
ーナル部を上方から軸受する複数の支持部を有す
る吸気側カムホルダ部と、排気弁用のカム軸のジ
ヤーナル部を上方から軸受する複数の支持部を有
する排気側カムホルダ部とを一体に連結して成る
吸排気共用のカムホルダを取付けたＤＯＨＣ型エ
ンジンであつて、前記両カム軸の少なくとも一方
のカム軸に低速バルブタイミング用の低速カムと
高速バルブタイミング用の高速カムとを設けて、
バルブタイミングを低速バルブタイミングと高速
バルブタイミングとに切換自在としたものにおい
て、該カムホルダの前記各カムホルダ部に、該各
カムホルダ部の前記各支持部間に跨らせて前記各
カム軸のカムの回転軌跡を少なくとも両側から覆
うリブを形成したことを特徴とするＤＯＨＣ型エ
ンジン。 ６ 前記カムホルダの前記リブに、前記各カム軸
のジヤーナル部に潤滑油を供給するジヤーナル部
用油路を穿設したことを特徴とする請求項５記載
のＤＯＨＣ型エンジン。 ７ 前記カムホルダに、前記各カムホルダ部の上
面を覆う該カムホルダに一体又は別体のビーム部
材を設けたことを特徴とする請求項５又は６に記
載のＤＯＨＣ型エンジン。 ８ 前記カムホルダの前記リブと前記ビーム部材
との一方に前記各カム軸の低速カムの外面に潤滑
油を供給する低速カム用油路と、他方に該各カム
軸の高速カムの外面に潤滑油を供給する高速カム
用油路とを各穿設したことを特徴とする請求項７
記載のＤＯＨＣ型エンジン。[Claims for Utility Model Registration] 1. An intake side cam holder portion having a plurality of support portions bearing the journal portion of the camshaft for the intake valve from above in the cylinder head, and a journal portion of the camshaft for the exhaust valve from above. A cam holder for both intake and exhaust use is installed by integrally connecting an exhaust side cam holder portion having a plurality of support portions bearing from the cam holder, and a cam holder for both intake and exhaust use is attached to each of the cam holder portions of the cam holder, and a cam holder portion that extends between the support portions of each of the cam holder portions is installed. A DOHC type engine, characterized in that a rib is formed to cover the rotation locus of the cam of each of the camshafts from at least both sides. 2. The DOHC engine according to claim 1, wherein the rib of the cam holder is provided with a journal part oil passage for supplying lubricating oil to the journal part of each of the camshafts. 3. The DOHC according to claim 1, wherein the rib of the cam holder is provided with a cam oil passage for supplying lubricating oil to the outer surface of the cam of each of the camshafts.
type engine. 4. The DOHC engine according to claim 1, wherein the cam holder is provided with a beam member that is integral with or separate from the cam holder and covers an upper surface of each of the cam holder parts. 5. The cylinder head is provided with an intake side cam holder part having a plurality of support parts that bear the journal part of the camshaft for the intake valve from above, and a plurality of support parts that bear the journal part of the camshaft for the exhaust valve from above. A DOHC engine is provided with a cam holder for both intake and exhaust use which is integrally connected to an exhaust side cam holder portion having a low speed valve timing and a high speed valve timing on at least one of the two camshafts. A high-speed cam for
In the device in which the valve timing can be freely switched between low-speed valve timing and high-speed valve timing, each of the cam holder portions of the cam holder is provided with a cam of each camshaft that extends between the support portions of each cam holder portion. A DOHC engine characterized by forming ribs that cover a rotation locus from at least both sides. 6. The DOHC engine according to claim 5, wherein the rib of the cam holder is provided with a journal part oil passage for supplying lubricating oil to the journal part of each of the camshafts. 7. The DOHC engine according to claim 5 or 6, wherein the cam holder is provided with a beam member that is integral or separate from the cam holder and covers the upper surface of each of the cam holder parts. 8 A low-speed cam oil passage for supplying lubricating oil to the outer surface of the low-speed cam of each of the camshafts on one side of the rib and the beam member of the cam holder, and a lubricating oil passage on the other side of the outer surface of the high-speed cam of each of the camshafts. Claim 7 characterized in that each oil passage for a high-speed cam is bored to supply a high-speed cam.
DOHC type engine described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989065381U JP2535317Y2 (en) | 1989-06-06 | 1989-06-06 | DOHC engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989065381U JP2535317Y2 (en) | 1989-06-06 | 1989-06-06 | DOHC engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH036006U true JPH036006U (en) | 1991-01-22 |
| JP2535317Y2 JP2535317Y2 (en) | 1997-05-14 |
Family
ID=31597160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989065381U Expired - Lifetime JP2535317Y2 (en) | 1989-06-06 | 1989-06-06 | DOHC engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2535317Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2623736A1 (en) | 2012-01-31 | 2013-08-07 | Suzuki Motor Corporation | Lubricating structure for internal combustion engine |
| JP2013155647A (en) * | 2012-01-27 | 2013-08-15 | Suzuki Motor Corp | Cam housing structure for three-dimensional cam |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6245912A (en) * | 1985-08-21 | 1987-02-27 | Honda Motor Co Ltd | Oil feeding device for hydraulic tappet of internal combustion engine |
| JPS63167010A (en) * | 1986-12-27 | 1988-07-11 | Honda Motor Co Ltd | Internal combustion engine valve train |
| JPS63176611A (en) * | 1987-01-14 | 1988-07-20 | Daihatsu Motor Co Ltd | Oil feeder in cylinder head for double overhead camshaft type internal combustion engine |
-
1989
- 1989-06-06 JP JP1989065381U patent/JP2535317Y2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6245912A (en) * | 1985-08-21 | 1987-02-27 | Honda Motor Co Ltd | Oil feeding device for hydraulic tappet of internal combustion engine |
| JPS63167010A (en) * | 1986-12-27 | 1988-07-11 | Honda Motor Co Ltd | Internal combustion engine valve train |
| JPS63176611A (en) * | 1987-01-14 | 1988-07-20 | Daihatsu Motor Co Ltd | Oil feeder in cylinder head for double overhead camshaft type internal combustion engine |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013155647A (en) * | 2012-01-27 | 2013-08-15 | Suzuki Motor Corp | Cam housing structure for three-dimensional cam |
| EP2623736A1 (en) | 2012-01-31 | 2013-08-07 | Suzuki Motor Corporation | Lubricating structure for internal combustion engine |
| US8887678B2 (en) | 2012-01-31 | 2014-11-18 | Suzuki Motor Corporation | Lubricating structure for internal combustion engine |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2535317Y2 (en) | 1997-05-14 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |