JPH0322486Y2 - - Google Patents
Info
- Publication number
- JPH0322486Y2 JPH0322486Y2 JP16814885U JP16814885U JPH0322486Y2 JP H0322486 Y2 JPH0322486 Y2 JP H0322486Y2 JP 16814885 U JP16814885 U JP 16814885U JP 16814885 U JP16814885 U JP 16814885U JP H0322486 Y2 JPH0322486 Y2 JP H0322486Y2
- Authority
- JP
- Japan
- Prior art keywords
- eccentric shaft
- amount
- oil passage
- oil
- rotary piston
- 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.)
- Expired
Links
- 230000001050 lubricating effect Effects 0.000 claims description 3
- 239000003921 oil Substances 0.000 description 21
- 239000010687 lubricating oil Substances 0.000 description 9
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Landscapes
- Lubrication Of Internal Combustion Engines (AREA)
Description
【考案の詳細な説明】
［産業上の利用分野］
本考案は、複数に分割された偏心軸を有するロ
ータリピストンエンジンの潤滑装置に関するもの
である。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a lubricating device for a rotary piston engine having an eccentric shaft divided into a plurality of parts.
［従来技術］
３気筒或いは４気筒等の多気筒ロータリピスト
ンエンジンでは、気筒数に等しい個数の偏心部を
偏心軸に形成する必要があり、一本の偏心軸に全
ての偏心部を設けるとすると、ロータリピストン
エンジンの組立てが著しく困難となることから、
偏心軸を第１偏心軸と第２偏心軸とに分割した組
立式の偏心軸が採用されている（例えば、特開昭
60−69208号公報参照）。[Prior Art] In a multi-cylinder rotary piston engine such as a three-cylinder or four-cylinder engine, it is necessary to form eccentric portions on an eccentric shaft in a number equal to the number of cylinders.If all the eccentric portions are provided on one eccentric shaft, , as assembly of the rotary piston engine becomes extremely difficult.
An assembly-type eccentric shaft is adopted in which the eccentric shaft is divided into a first eccentric shaft and a second eccentric shaft (for example,
60-69208).
この組立式の偏心軸は、軸方向の途中の外周部
をテーパ部として形成した第１偏心軸と、このテ
ーパ部に嵌合するテーパ部を軸方向の一端部内周
に形成し、全体を第１偏心軸に外嵌するようにし
た第２偏心軸とで構成され、第１偏心軸と第２偏
心軸とは、上記テーパ部で芯出しした状態で嵌合
される。しかしながら、上記のテーパ部は軸方向
の一部にしか形成されないので、テーパの嵌合精
度を十分に高くしたとしても、第２偏心軸の他端
側において第１偏心軸との間に僅かなクリアラン
スを生ずることは避け難い。 This prefabricated eccentric shaft has a first eccentric shaft whose outer peripheral part is formed as a tapered part midway in the axial direction, and a tapered part that fits into this tapered part is formed on the inner peripheral part of one end in the axial direction, and the whole is formed into a first eccentric shaft. The first eccentric shaft is configured with a second eccentric shaft that is fitted onto the outside of the first eccentric shaft, and the first eccentric shaft and the second eccentric shaft are fitted with each other in a state where they are centered at the tapered portion. However, since the above-mentioned taper part is formed only in a part of the axial direction, even if the fitting precision of the taper is made sufficiently high, there is a slight gap between the second eccentric shaft and the first eccentric shaft on the other end side. The occurrence of clearance is unavoidable.
第２偏心軸の固定を強固なものとするために
は、第１偏心軸との間のテーパ部嵌合部を長くす
ればよいが、第１偏心軸の軸径や第２偏心軸の肉
厚等必要な剛性を確保するためには、テーパ嵌合
長さを現在以上に長くすることは実際上不可能で
ある。 In order to securely fix the second eccentric shaft, it is possible to lengthen the tapered fitting part between it and the first eccentric shaft. In order to ensure necessary rigidity such as thickness, it is practically impossible to make the taper fitting length longer than the current length.
上記のように第１偏心軸と第２偏心軸との間に
僅かなクリアランスが生ずると、ロータの偏心回
転運動に伴なつて、第２偏心軸が僅かではあるが
テーパ部を中心としてすりこぎ運動され、第２偏
心軸の他端部を軸受する軸受部の潤滑能力が不足
してしまうといつた問題を招来する。 As mentioned above, if a slight clearance is created between the first eccentric shaft and the second eccentric shaft, the second eccentric shaft will be slightly scraped around the tapered part due to the eccentric rotational movement of the rotor. This results in problems such as insufficient lubrication ability of the bearing that supports the other end of the second eccentric shaft.
［考案の目的］
本考案の目的は、上記の如き分割型偏心軸にお
いて、偏心軸のすりこぎ運動に伴なう軸受部の焼
付きを確実に防止することができるロータリピス
トンエンジンの潤滑装置を提供するものである。[Purpose of the invention] The purpose of the invention is to provide a lubricating device for a rotary piston engine that can reliably prevent seizing of the bearing portion due to the grinding motion of the eccentric shaft in the split type eccentric shaft as described above. This is what we provide.
［考案の構成］
このため本考案は、第１偏心軸のテーパ部に一
端が嵌合される第２偏心軸の他端を軸受する軸受
部への給油量を他の軸受部への給油量に比して増
量するようにして構成したものである。[Structure of the invention] Therefore, the present invention makes it possible to change the amount of oil supplied to a bearing portion that bears the other end of the second eccentric shaft whose one end is fitted into the tapered portion of the first eccentric shaft to the amount of oil supplied to other bearing portions. It is constructed so that the amount is increased compared to the .
［考案の効果］
本考案によれば、第２偏心軸の他端部は多量の
潤滑オイルが供給されるため、第２偏心軸がすり
こぎ運動を行なつても焼付きを生ずることがな
い。[Effect of the invention] According to the invention, since a large amount of lubricating oil is supplied to the other end of the second eccentric shaft, seizure does not occur even when the second eccentric shaft performs a grinding motion. .
［実施例］ 以下、本考案の実施例を具体的に説明する。[Example] Hereinafter, embodiments of the present invention will be described in detail.
図面に３気筒のロータリピストンエンジンの縦
断面を示すように、ケーシング１は、フロント，
リヤ両側のサイドハウジング２，３と、フロン
ト，センタ，リヤ計３つのロータハウジング４，
５，６と、夫々２つのロータハウジング４，５，
５，６に配置される計２つのインターメデイエイ
トハウジング７，８とによつて構成されている。
フロント，センタ，リヤのロータハウジング４，
５，６内に収容される各ロータ９，１０，１１
は、ケーシング１を軸方向に貫通する偏心軸１２
の廻りで遊星回転運動して、吸入，圧縮，着火，
燃焼，排気の各行程を連続的に繰返す。 As shown in the drawing, which shows a longitudinal section of a three-cylinder rotary piston engine, the casing 1 has front,
Side housings 2 and 3 on both sides of the rear, and a total of three rotor housings 4: front, center, and rear.
5, 6, and two rotor housings 4, 5, respectively.
It is composed of a total of two intermediate housings 7 and 8 arranged at 5 and 6.
Front, center, rear rotor housing 4,
Each rotor 9, 10, 11 housed in 5, 6
is an eccentric shaft 12 that passes through the casing 1 in the axial direction.
There is a planetary rotation movement around the
The combustion and exhaust strokes are repeated continuously.
上記偏心軸１２は、２つのロータ１０，１１と
係合する第１偏心軸１３と、残りの１つのロータ
９と係合する第２偏心軸１４とからなる組立型偏
心軸として構成されており、第１偏心軸１３はケ
ーシング１を貫通するように長尺に形成され、一
方のリヤサイドハウジング３と広幅のインターメ
デイエイトハウジング７とにおいて、ジヤーナル
軸受１５，１６により軸受されている。 The eccentric shaft 12 is configured as an assembled eccentric shaft consisting of a first eccentric shaft 13 that engages with two rotors 10 and 11, and a second eccentric shaft 14 that engages with the remaining one rotor 9. The first eccentric shaft 13 is formed to be elongated so as to pass through the casing 1, and is supported by journal bearings 15 and 16 in one of the rear side housings 3 and the wide intermediate housing 7.
第２偏心軸１４は、第１偏心軸１３の広幅のイ
ンターメデイエイトハウジング７に該当する外周
部分に設けたテーパ部１３ａに嵌合するテーパ部
１４ａを軸方向の一端部内周に有し、第１偏心軸
１３の小径軸部１３ｂに相対回転不自在に嵌合す
る中空軸として形成され、胴部でフロントロータ
９に係合するとともに、テーパ部１４ａと反対側
の端部外周は、フロントサイドハウジング２に取
付けられたジヤーナル軸受１７により軸受されて
いる。 The second eccentric shaft 14 has a tapered portion 14a on the inner periphery of one end in the axial direction, which fits into a tapered portion 13a provided on the outer peripheral portion corresponding to the wide intermediate housing 7 of the first eccentric shaft 13. 1 is formed as a hollow shaft that is fitted into the small diameter shaft portion 13b of the eccentric shaft 13 so as not to be relatively rotatable, and the body engages with the front rotor 9, and the outer periphery of the end opposite to the tapered portion 14a is connected to the front side. It is supported by a journal bearing 17 attached to the housing 2.
なお、第１偏心軸１３のリヤ側軸端部にはフラ
イホイール１９が設けられている。 Note that a flywheel 19 is provided at the rear end of the first eccentric shaft 13 .
上記各ジヤーナル軸受１５，１６，１７に潤滑
油を供給するメインオイル通路２０は、ケーシン
グ１の上部内を軸方向に貫通するように形成さ
れ、リヤ側サイドハウジング３側に給油口２１が
形成されている。 A main oil passage 20 for supplying lubricating oil to each of the journal bearings 15, 16, 17 is formed to axially penetrate through the upper part of the casing 1, and an oil supply port 21 is formed on the rear side housing 3 side. ing.
上記メインオイル通路２０には、リヤ側サイド
ハウジング３、広幅のインターメデイエイトハウ
ジング７およびフロント側サイドハウジング２に
夫々径方向に形成された径方向のリヤ側，センタ
ー側，フロント側オイル通路２２，２３，２４が
連通し、これら各オイル通路２２，２３，２４を
通して各ジヤーナル軸受１５，１６，１７に潤滑
油が供給される。 The main oil passage 20 includes radial rear, center, and front oil passages 22 formed radially in the rear side housing 3, the wide intermediate housing 7, and the front side housing 2, respectively. 23 and 24 communicate with each other, and lubricating oil is supplied to each journal bearing 15, 16, 17 through each oil passage 22, 23, 24.
この場合、円Ｐ内に拡大して示すように、リヤ
側オイル通路２２に対しては、このオイル通路２
２内に流入する潤滑油量FRを規制するための山
形断面の凸部２５をオイル通路２２の流入口部の
僅か上流に形成している。 In this case, as shown enlarged in circle P, this oil passage 2
A convex portion 25 having a chevron -shaped cross section for regulating the amount of lubricating oil flowing into the oil passage 22 is formed slightly upstream of the inlet portion of the oil passage 22.
また、センター側のオイル通路２３の流入口部
には、図面に円Ｑで示すように、山形断面のリン
グ部材２６を設けてオリフイスを形成し、これに
より、センター側のオイル通路２３への潤滑油量
Fcを制限する。 Further, at the inlet of the oil passage 23 on the center side, a ring member 26 with a chevron-shaped cross section is provided to form an orifice, as shown by a circle Q in the drawing, thereby providing lubrication to the oil passage 23 on the center side. Oil amount
Limit Fc.
フロント側のオイル通路２４には特別な油量制
限手段を設けないで、メインオイル通路２０を流
下してくる潤滑油の全量Ffをジヤーナル軸受１
７に供給する。 The front side oil passage 24 is not provided with any special oil amount limiting means, and the entire amount Ff of the lubricating oil flowing down the main oil passage 20 is controlled by the journal bearing 1.
Supply to 7.
上記の構成とすれば、リヤ側オイル通路２２へ
の潤滑油量FR，センタオイル通路２３への潤滑
流量Fcに対しフロント側オイル通路２４への潤
滑油量Ffを多くすることができ、第２偏心軸１
４の他端を軸受するジヤーナル軸受１７に十分に
潤滑することができるようになる。 With the above configuration, the amount Ff of lubricating oil to the front oil passage 24 can be increased relative to the amount F R of lubricating oil to the rear oil passage 22 and the amount Fc of lubricating oil to the center oil passage 23, and 2 eccentric shaft 1
This makes it possible to sufficiently lubricate the journal bearing 17 that bears the other end of the shaft.
したがつて、第２偏心軸１４が僅かなクリアラ
ンスのために上記テーパ部１４ａを基点としてす
りこぎ運動を行なつても、ジヤーナル軸受１７に
は十分な量の潤滑油が供給され、焼付きを生ずる
ことはない。 Therefore, even if the second eccentric shaft 14 performs a grinding motion based on the tapered portion 14a due to a small clearance, a sufficient amount of lubricating oil is supplied to the journal bearing 17 to prevent seizure. It will never occur.
図面は本考案の実施例にかかるロータリピスト
ンエンジンの縦断面図である。
１３…第１偏心軸、１４…第２偏心軸、１５，
１６，１７…ジヤーナル軸受、２０…メインオイ
ル通路、２２，２３，２４…オイル通路、２５…
凸部、２６…オリフイス。
The drawing is a longitudinal sectional view of a rotary piston engine according to an embodiment of the present invention. 13...first eccentric shaft, 14...second eccentric shaft, 15,
16, 17... Journal bearing, 20... Main oil passage, 22, 23, 24... Oil passage, 25...
Convex portion, 26...orifice.
Claims (1)
軸と、一端部が上記テーパ部に嵌合した状態に第
１偏心軸に外嵌される第２偏心軸とからなる偏心
軸を備えたロータリピストンエンジンにおいて、 上記第２偏心軸の他端部を支持する軸受部に供
給するオイル量を、他の軸受部に供給するオイル
量に比して増量するようにしたことを特徴とする
ロータリピストンエンジンの潤滑装置。[Claims for Utility Model Registration] A first eccentric shaft having a tapered portion formed in the middle in the axial direction, and a second eccentric shaft that is externally fitted onto the first eccentric shaft with one end portion fitted into the tapered portion. In a rotary piston engine equipped with an eccentric shaft, the amount of oil supplied to the bearing section that supports the other end of the second eccentric shaft is increased compared to the amount of oil supplied to the other bearing sections. A lubricating device for a rotary piston engine, which is characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16814885U JPH0322486Y2 (en) | 1985-10-30 | 1985-10-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16814885U JPH0322486Y2 (en) | 1985-10-30 | 1985-10-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6276203U JPS6276203U (en) | 1987-05-15 |
| JPH0322486Y2 true JPH0322486Y2 (en) | 1991-05-16 |
Family
ID=31100757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16814885U Expired JPH0322486Y2 (en) | 1985-10-30 | 1985-10-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0322486Y2 (en) |
-
1985
- 1985-10-30 JP JP16814885U patent/JPH0322486Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6276203U (en) | 1987-05-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS623536Y2 (en) | ||
| US6709160B1 (en) | Turbocharger bearing lubrication system | |
| US4879979A (en) | Intake and exhaust system through rotatory ports shaft, in four-stroke motors | |
| EP2317083A1 (en) | Cam shaft supporting apparatus | |
| EP3283743B1 (en) | Turbocharger bearing assembly | |
| US5123394A (en) | Rotary reciprocating internal combustion engine | |
| EP2345818B1 (en) | Parts for crankshaft of internal combustion engine or compressor, crankshaft, internal combustion engine and compressor | |
| WO2006088149A1 (en) | Camshaft device and method of assembling camshaft device | |
| JPH0322486Y2 (en) | ||
| US4729726A (en) | Housing structure for a multiple-rotor type rotary piston engine | |
| US4973233A (en) | Four-rotor type rotary piston engine | |
| JPS621793Y2 (en) | ||
| JP2020537096A (en) | Exhaust gas type supercharger | |
| US5799547A (en) | Oil distribution in a combustion engine crank shaft | |
| US3982860A (en) | Thrust bearings for slant axis rotary mechanisms | |
| JPH102227A (en) | Floating bearing structure for supercharger | |
| JP2542029B2 (en) | Bearing lubrication system for multi-cylinder rotary piston engine | |
| JPH0128243Y2 (en) | ||
| JPS6316836Y2 (en) | ||
| JPH0223763Y2 (en) | ||
| JP4239536B2 (en) | Bearing device for turbocharger | |
| JPH08200375A (en) | Cage for roller bearing | |
| JP2008215086A (en) | Bearing structure of turbocharger | |
| JPH057528B2 (en) | ||
| JPH059464Y2 (en) |