JPS6367634U - - Google Patents
Info
- Publication number
- JPS6367634U JPS6367634U JP16086586U JP16086586U JPS6367634U JP S6367634 U JPS6367634 U JP S6367634U JP 16086586 U JP16086586 U JP 16086586U JP 16086586 U JP16086586 U JP 16086586U JP S6367634 U JPS6367634 U JP S6367634U
- Authority
- JP
- Japan
- Prior art keywords
- compression ratio
- oil
- hydraulic
- circumference
- lock pin
- 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
- 230000006835 compression Effects 0.000 claims description 8
- 238000007906 compression Methods 0.000 claims description 8
- 239000003921 oil Substances 0.000 claims description 8
- 239000010687 lubricating oil Substances 0.000 claims description 4
- 238000005086 pumping Methods 0.000 claims 1
- 238000011144 upstream manufacturing Methods 0.000 claims 1
Landscapes
- Pistons, Piston Rings, And Cylinders (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
- Sliding-Contact Bearings (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Description
第１図は本考案の一実施例に係る可変圧縮比機
構の油圧通路の断面図、第２図は従来の可変圧縮
比機構の一例を示す断面図、第３図は第２図の
―線に沿う断面図、である。
１４…コネクテイングロツド、１５…クランク
シヤフト、１６…偏心ベアリング、２０…ロツク
ピンロツク用油圧通路、２１…ロツクピンアンロ
ツク用油圧通路、２４…油孔、２６…クランクピ
ン軸受部、２６ａ…クランクピン軸受部の上面、
２６ｂ…クランクピン軸受部の下面、２７…クラ
ンクジヤーナルの軸受部、３２，３３…潤滑用油
溝、４２…油圧切換弁。
Fig. 1 is a sectional view of a hydraulic passage of a variable compression ratio mechanism according to an embodiment of the present invention, Fig. 2 is a sectional view showing an example of a conventional variable compression ratio mechanism, and Fig. 3 is a line taken along the line shown in Fig. 2. FIG. 14... Connecting rod, 15... Crankshaft, 16... Eccentric bearing, 20... Hydraulic passage for lock pin locking, 21... Hydraulic passage for lock pin unlocking, 24... Oil hole, 26... Crank pin bearing portion, 26a... Crank pin bearing top surface of the section,
26b... Lower surface of crank pin bearing portion, 27... Bearing portion of crank journal, 32, 33... Lubricating oil groove, 42... Hydraulic switching valve.
Claims (1)
低圧縮比制御用油圧通路と高圧縮比制御用油圧通
路を、クランクジヤーナルの軸受部の周上に形成
された２つの独立の油溝に別個に接続し、該軸受
部の周上の２つの油溝を、クランクシヤフト内の
油孔を介してコネクテイングロツド内に形成され
偏心ベアリングに係合可能なロツクピンを油圧駆
動させるための２つのロツクピン駆動用油通路に
それぞれ接続した可変圧縮比機構の油圧通路にお
いて、前記コネクテイングロツドのクランクピン
軸受部の周上の上下方向の部位を除く位置に、前
記ロツクピン駆動用油通路に接続される油溝を配
置し、前記クランクジヤーナルの軸受部の周上に
、前記クランクシヤフト内の油孔を介して前記コ
ネクテイングロツドのクランクピン軸受部の上下
面に潤滑油を圧送する潤滑用油溝を設けたことを
特徴とする可変圧縮比機構の油圧通路。 (2) 前記潤滑用油溝が圧縮比を切換える油圧切
換弁の上流側に接続されている実用新案登録請求
の範囲第１項記載の可変圧縮比機構の油圧通路。[Claims for Utility Model Registration] (1) Hydraulic passages for low compression ratio control and hydraulic passages for high compression ratio control, which are formed independently of each other in the cylinder block, are formed on the circumference of the bearing part of the crank journal. A lock pin that is separately connected to two independent oil grooves and that is formed in the connecting rod through an oil hole in the crankshaft and can engage the two oil grooves on the circumference of the bearing part with the eccentric bearing. In the hydraulic passage of the variable compression ratio mechanism connected to the two lock pin drive oil passages for hydraulically driving the An oil groove connected to the lock pin driving oil passage is arranged on the circumference of the bearing portion of the crank journal and on the upper and lower surfaces of the crank pin bearing portion of the connecting rod through the oil hole in the crankshaft. A hydraulic passage of a variable compression ratio mechanism characterized by having a lubricating oil groove for pumping lubricating oil. (2) The hydraulic passage of the variable compression ratio mechanism according to claim 1, wherein the lubricating oil groove is connected to the upstream side of a hydraulic switching valve that switches the compression ratio.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16086586U JPH048273Y2 (en) | 1986-10-22 | 1986-10-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16086586U JPH048273Y2 (en) | 1986-10-22 | 1986-10-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6367634U true JPS6367634U (en) | 1988-05-07 |
| JPH048273Y2 JPH048273Y2 (en) | 1992-03-03 |
Family
ID=31086647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16086586U Expired JPH048273Y2 (en) | 1986-10-22 | 1986-10-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH048273Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02135759U (en) * | 1989-04-18 | 1990-11-13 | ||
| JP2012526939A (en) * | 2009-05-13 | 2012-11-01 | バイエリッシェ モートーレン ウエルケ アクチエンゲゼルシャフト | Internal combustion engine |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107763061B (en) * | 2016-08-19 | 2020-03-10 | 上海汽车集团股份有限公司 | Automobile, engine, crank connecting rod mechanism and connecting rod assembly thereof |
-
1986
- 1986-10-22 JP JP16086586U patent/JPH048273Y2/ja not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02135759U (en) * | 1989-04-18 | 1990-11-13 | ||
| JP2012526939A (en) * | 2009-05-13 | 2012-11-01 | バイエリッシェ モートーレン ウエルケ アクチエンゲゼルシャフト | Internal combustion engine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH048273Y2 (en) | 1992-03-03 |