JP2009228647A - Bearing housing - Google Patents

Bearing housing Download PDF

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JP2009228647A
JP2009228647A JP2008078369A JP2008078369A JP2009228647A JP 2009228647 A JP2009228647 A JP 2009228647A JP 2008078369 A JP2008078369 A JP 2008078369A JP 2008078369 A JP2008078369 A JP 2008078369A JP 2009228647 A JP2009228647 A JP 2009228647A
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oil
shaft
bearing housing
passage
oil passage
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JP5029837B2 (en
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Mikito Ishii
幹人 石井
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IHI Corp
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IHI Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a bearing housing can increase resistance against oil leakage at a seal part, and enhance inspection accuracy of remaining casting sand after the casting. <P>SOLUTION: In the bearing housing 10, side expansion oil passages 22 extending toward an end oil passage 13 side on a compressor side are connected to right and left sides of an end oil passage 12 on a turbine side. The side expansion oil passages 22 extend to the position on the end oil passage 13 side on the compressor side from a line segment to connect an upper end (point A) of the end oil passage 12 on the turbine side to a center part (point B) of a discharge port 15 over the entire height direction. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、油排出路をもつベアリングハウジングに関する。   The present invention relates to a bearing housing having an oil discharge passage.

図5は、下記特許文献1に開示された従来の過給機50の構造を示す断面図である。図5において、タービンインペラ51とコンプレッサインペラ52が回転軸53によって連結されて一体的に回転する。タービンインペラ51はタービンハウジング54内に収容され、コンプレッサインペラ52はコンプレッサハウジング55内に収容されており、タービンハウジング54とコンプレッサハウジング55との間にはベアリングハウジング56が配置されている。   FIG. 5 is a cross-sectional view showing a structure of a conventional supercharger 50 disclosed in Patent Document 1 below. In FIG. 5, a turbine impeller 51 and a compressor impeller 52 are connected by a rotating shaft 53 and rotate integrally. The turbine impeller 51 is accommodated in the turbine housing 54, the compressor impeller 52 is accommodated in the compressor housing 55, and a bearing housing 56 is disposed between the turbine housing 54 and the compressor housing 55.

ベアリングハウジング56内に形成された軸貫通穴57には、ラジアル軸受(フローティングメタル)58が配置されており、このラジアル軸受58によって回転軸53が回転自在に支持されている。ラジアル軸受58には、給油路59を経由して潤滑油が供給される。ラジアル軸受58を潤滑した潤滑油は軸貫通穴57の両側から排出される。   A radial bearing (floating metal) 58 is disposed in a shaft through hole 57 formed in the bearing housing 56, and the rotary shaft 53 is rotatably supported by the radial bearing 58. Lubricating oil is supplied to the radial bearing 58 via an oil supply passage 59. The lubricating oil that has lubricated the radial bearing 58 is discharged from both sides of the shaft through hole 57.

またベアリングハウジング56内には、軸貫通穴57の両側から排出された潤滑油を、ベアリングハウジング56の下部に設けられた排出口60まで導く油排出路61が形成されている。この油排出路61は、軸貫通穴57の両端から半径方向に広がる2つの端部油路62,63と、各端部油路62,63からの潤滑油を集めて下部の排出口60まで導く下部油路64とから構成される。   An oil discharge path 61 is formed in the bearing housing 56 to guide the lubricating oil discharged from both sides of the shaft through hole 57 to a discharge port 60 provided in the lower portion of the bearing housing 56. The oil discharge passage 61 collects lubricating oil from the two end oil passages 62 and 63 extending in the radial direction from both ends of the shaft through hole 57 and the end oil passages 62 and 63 to the lower discharge port 60. And a lower oil passage 64 to be led.

特開2002−70570号公報JP 2002-70570 A

上述したベアリングハウジング50において、端部油路62,63の近傍には軸シール部65,66が設けられている。しかしながら、従来の端部油路62,63では、軸受58側から端部油路62,63に排出された潤滑油が軸シール部65,66へ行きやすいという問題がある。また、油排出路の体積が油量に対して十分でない場合には、潤滑油の排出性能が不足することでタービン側あるいはコンプレッサ側への油漏れが発生するという問題がある。   In the bearing housing 50 described above, shaft seal portions 65 and 66 are provided in the vicinity of the end oil passages 62 and 63. However, the conventional end oil passages 62 and 63 have a problem that the lubricating oil discharged from the bearing 58 side to the end oil passages 62 and 63 easily goes to the shaft seal portions 65 and 66. Moreover, when the volume of the oil discharge path is not sufficient with respect to the amount of oil, there is a problem that oil leakage to the turbine side or the compressor side occurs due to insufficient lubricating oil discharge performance.

またベアリングハウジング50の鋳造後の鋳砂残りの検査において、排出口から検査ワイヤーを挿入するときに、検査ワイヤーを油排出路61の最奥部まで挿入することが困難であるために、鋳砂残りが検査で発見されにくいという問題がある。   In addition, in the inspection of the cast sand remaining after the casting of the bearing housing 50, when inserting the inspection wire from the discharge port, it is difficult to insert the inspection wire to the innermost part of the oil discharge path 61. There is a problem that the rest is difficult to find by inspection.

本発明は、上記の問題に鑑みてなされたものであり、シール部における油漏れに対する耐性を向上させることができとともに、鋳造後の鋳砂残りの検査精度を向上させることができるベアリングハウジングを提供することを課題とする。   The present invention has been made in view of the above problems, and provides a bearing housing that can improve resistance to oil leakage at a seal portion and improve inspection accuracy of cast sand residue after casting. The task is to do.

上記の課題を解決するため、本発明の油排出路形成用中子とこれを用いたベアリングハウジングの製造方法は、以下の技術的手段を採用する。
すなわち、本発明は、回転軸を支持する軸受を通すための軸貫通穴と、該軸貫通穴の両端から排出される潤滑油を受け入れて下部から排出するための油排出路と備え、前記油排出路が、軸貫通穴の両端にそれぞれ連結し該軸貫通穴の両端から半径方向に広がり軸貫通穴からの潤滑油を受け入れる2つの端部油路と、各端部油路からの潤滑油を集めて下部の排出口まで導く下部油路とを有するベアリングハウジングにおいて、前記2つの端部油路の少なくとも一方の左右両側に、他方の端部油路側に向かって延びる側方拡張油路が連結されており、前記側方拡張油路は、高さ方向の全体にわたって、当該側方拡張油路が連結された前記端部油路の上端部と、前記排出口の中心部とを結ぶ線分よりも、他方の端部油路側の位置まで延びている、ことを特徴とする。
In order to solve the above-mentioned problems, the following technical means are adopted in the oil discharge path forming core of the present invention and the bearing housing manufacturing method using the same.
That is, the present invention includes a shaft through hole for passing a bearing that supports a rotating shaft, and an oil discharge passage for receiving and discharging the lubricating oil discharged from both ends of the shaft through hole from the lower part. Two end oil passages that are connected to both ends of the shaft through-holes, extend in the radial direction from both ends of the shaft through-holes, and receive the lubricating oil from the shaft through-holes, and the lubricating oil from each end oil passage In the bearing housing having a lower oil passage that collects and leads to a lower discharge port, lateral expansion oil passages that extend toward the other end oil passage are provided on the left and right sides of at least one of the two end oil passages. The side expansion oil passage is connected to the upper end portion of the end oil passage to which the side expansion oil passage is connected and the center portion of the discharge port over the entire height direction. It extends to the position on the other end oil passage side rather than The features.

上記の本発明の構成によれば、端部油路の左右両側に側方拡張油路が連結されているので、軸受側から端部油路に排出された潤滑油が軸シール部へ行かずに排出口へ行きやすくなるとともに、油排出路の体積も増えることで潤滑油の排出性能が向上するので、シール部における油漏れに対する耐性を向上させることができる。   According to the above configuration of the present invention, since the side expansion oil passages are connected to the left and right sides of the end oil passage, the lubricating oil discharged from the bearing side to the end oil passage does not go to the shaft seal portion. In addition, it is easy to go to the discharge port, and the volume of the oil discharge path is increased, so that the lubricating oil discharge performance is improved. Therefore, the resistance to oil leakage at the seal portion can be improved.

また、ベアリングハウジングの鋳造後に鋳砂残りの検査を行う際に、排出口から検査ワイヤーを挿入し、側方拡張油路に通すことで、最奥部まで検査ワイヤーを容易に挿入できるので、検査精度が向上する。   In addition, when inspecting the cast sand residue after casting the bearing housing, the inspection wire can be easily inserted to the innermost part by inserting the inspection wire from the discharge port and passing it through the side expansion oil passage. Accuracy is improved.

本発明のベアリングハウジングによれば、シール部における油漏れに対する耐性を向上させることができとともに、鋳造後の鋳砂残りの検査精度を向上させることができる   According to the bearing housing of the present invention, it is possible to improve resistance to oil leakage at the seal portion and improve inspection accuracy of cast sand residue after casting.

以下、本発明の好ましい実施形態を添付図面に基づいて詳細に説明する。なお、各図において共通する部分には同一の符号を付し、重複した説明を省略する。   Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In addition, the same code | symbol is attached | subjected to the common part in each figure, and the overlapping description is abbreviate | omitted.

図1は、本発明の第1実施形態にかかるベアリングハウジング10の断面図である。図1の構成例において、ベアリングハウジング10は、過給機用として構成されており、左側がタービン側、右側がコンプレッサ側である。また、図1において符号aで示す一点鎖線は、過給機の回転軸の回転軸心である。   FIG. 1 is a cross-sectional view of a bearing housing 10 according to a first embodiment of the present invention. In the configuration example of FIG. 1, the bearing housing 10 is configured for a supercharger, with the left side being the turbine side and the right side being the compressor side. Moreover, the dashed-dotted line shown with the code | symbol a in FIG. 1 is a rotating shaft center of the rotating shaft of a supercharger.

図1において、ベアリングハウジング10は、回転軸を支持する軸受を通すための円筒状の軸貫通穴17と、軸貫通穴17の両端から排出される潤滑油を受け入れて下部から排出するための油排出路11と備える。   In FIG. 1, a bearing housing 10 has a cylindrical shaft through hole 17 for passing a bearing that supports a rotating shaft, and oil for receiving lubricant oil discharged from both ends of the shaft through hole 17 and discharging it from below. A discharge passage 11 is provided.

図1においてベアリングハウジング10には、さらに、軸貫通穴17につながる潤滑油供給路21と、タービン側に貫通して回転軸を通すための穴16と、冷却液を流すための冷却液流路19とが形成されている。過給機として組み立てられた場合、従来と同様に、上記の穴16には、回転軸との間から潤滑油が漏れるのを防止するための軸シール部が設けられるとともに、コンプレッサ側の端部油路13には、スラスト軸受、コンプレッサ側軸シール部などが設けられる。   In FIG. 1, the bearing housing 10 further includes a lubricating oil supply path 21 connected to the shaft through hole 17, a hole 16 that passes through the turbine side and passes the rotating shaft, and a coolant flow path for flowing the coolant. 19 is formed. When assembled as a supercharger, the hole 16 is provided with a shaft seal portion for preventing the lubricating oil from leaking from between the rotary shaft and the end portion on the compressor side, as in the conventional case. The oil passage 13 is provided with a thrust bearing, a compressor side shaft seal portion, and the like.

図2は、本実施形態のベアリングハウジング10における油排出路11の中空形状を示す斜視図である。
図1及び図2に示すように、油排出路11は、軸貫通穴17の両端にそれぞれ連結し軸貫通穴17の両端から半径方向に広がり軸貫通穴17からの潤滑油を受け入れる2つの端部油路12,13と、各端部油路12,13からの潤滑油を集めて下部の排出口15まで導く下部油路14とを有する。下部油路14は、2つの端部油路12,13の間に形成されている。
FIG. 2 is a perspective view showing a hollow shape of the oil discharge passage 11 in the bearing housing 10 of the present embodiment.
As shown in FIGS. 1 and 2, the oil discharge passage 11 is connected to both ends of the shaft through hole 17, and extends in the radial direction from both ends of the shaft through hole 17 to receive the lubricating oil from the shaft through hole 17. The lower oil passages 12 and 13 and the lower oil passages 14 that collect the lubricating oil from the end oil passages 12 and 13 and lead them to the lower discharge port 15 are provided. The lower oil passage 14 is formed between the two end oil passages 12 and 13.

ベアリングハウジング10において、タービン側の端部油路12の左右両側に、コンプレッサ側に向かって延びる側方拡張油路22が連結されている。図1に示すように、側方拡張油路22は、高さ方向の全体にわたって、タービン側の端部油路12の上端部(図1のA点)と、排出口15の中心部(図1のB点)とを結ぶ線分よりも、コンプレッサ側の端部油路13側の位置まで延びている。   In the bearing housing 10, side expansion oil passages 22 extending toward the compressor side are connected to the left and right sides of the end oil passage 12 on the turbine side. As shown in FIG. 1, the side expansion oil passage 22 has an upper end portion (point A in FIG. 1) of the end oil passage 12 on the turbine side and a center portion (see FIG. 1) throughout the height direction. 1 to the position of the end oil passage 13 side on the compressor side.

ベアリングハウジング10の油排出路は、上記のように構成されているので、軸貫通穴17から排出された潤滑油は、2つの端部油路12,13、側方拡張油路22及び下部油路を通って、排出口から排出される。   Since the oil discharge passage of the bearing housing 10 is configured as described above, the lubricating oil discharged from the shaft through-hole 17 is supplied to the two end oil passages 12, 13, the side expansion oil passage 22, and the lower oil. It is discharged from the outlet through the road.

上述した本発明のベアリングハウジング10によれば、端部油路12の左右両側に側方拡張油路22が連結されているので、軸受側から端部油路12に排出された潤滑油が軸シール部へ行かずに排出口15へ行きやすくなるとともに、油排出路11の体積も増えることで潤滑油の排出性能が向上するので、軸シール部における油漏れに対する耐性を向上させることができる。   According to the bearing housing 10 of the present invention described above, since the side expansion oil passages 22 are connected to the left and right sides of the end oil passage 12, the lubricating oil discharged from the bearing side to the end oil passage 12 is shaft. Since it becomes easy to go to the discharge port 15 without going to the seal portion, and the volume of the oil discharge passage 11 is increased, the lubricating oil discharge performance is improved, so that the resistance to oil leakage at the shaft seal portion can be improved.

また、上記のベアリングハウジング10は鋳造によって製作されるが、鋳造後に鋳砂残りの検査を行う際に、図1に示すように、排出口15から検査ワイヤー18を挿入し、側方拡張油路22に通すことで、最奥部まで検査ワイヤー18を容易に挿入できるので、検査精度が向上する。   In addition, the bearing housing 10 is manufactured by casting. When the cast sand residue is inspected after casting, the inspection wire 18 is inserted from the outlet 15 as shown in FIG. By passing through 22, the inspection wire 18 can be easily inserted to the innermost portion, so that the inspection accuracy is improved.

図3は、本発明の第2実施形態にかかるベアリングハウジング10の断面図である。図3の構成例において、ベアリングハウジング10は、過給機用として構成されており、左側がタービン側、右側がコンプレッサ側である。また図4は、本実施形態のベアリングハウジング10における油排出路11の中空形状を示す斜視図である。   FIG. 3 is a cross-sectional view of the bearing housing 10 according to the second embodiment of the present invention. In the configuration example of FIG. 3, the bearing housing 10 is configured for a supercharger, with the left side being the turbine side and the right side being the compressor side. FIG. 4 is a perspective view showing a hollow shape of the oil discharge passage 11 in the bearing housing 10 of the present embodiment.

図3において、ベアリングハウジング10は、回転軸を支持する軸受を通すための軸貫通穴17と、軸貫通穴17の両端から排出される潤滑油を受け入れて下部から排出するための油排出路11と備える。   In FIG. 3, the bearing housing 10 has a shaft through hole 17 for passing a bearing that supports the rotating shaft, and an oil discharge passage 11 for receiving the lubricating oil discharged from both ends of the shaft through hole 17 and discharging it from the lower part. Prepare.

油排出路11は、軸貫通穴17の両端にそれぞれ連結し軸貫通穴17の両端から半径方向に広がり軸貫通穴17からの潤滑油を受け入れる2つの端部油路12,13と、各端部油路12,13からの潤滑油を集めて下部の排出口まで導く下部油路14とを有する。   The oil discharge passage 11 is connected to both ends of the shaft through hole 17 and extends in the radial direction from both ends of the shaft through hole 17 to receive the lubricating oil from the shaft through hole 17. And a lower oil passage 14 that collects lubricating oil from the partial oil passages 12 and 13 and guides it to a lower discharge port.

ベアリングハウジング10において、タービン側の端部油路12の左右両側に、コンプレッサ側に向かって延びる側方拡張油路22が連結されている。図3に示すように、側方拡張油路22は、高さ方向の全体にわたって、タービン側の端部油路12の上端部(図3のA点)と、排出口の中心部(図3のB点)とを結ぶ線分よりも、コンプレッサ側の端部油路13側の位置まで延びている。   In the bearing housing 10, side expansion oil passages 22 extending toward the compressor side are connected to the left and right sides of the end oil passage 12 on the turbine side. As shown in FIG. 3, the side expansion oil passage 22 has an upper end portion (point A in FIG. 3) of the end oil passage 12 on the turbine side and a center portion of the discharge port (FIG. 3) throughout the height direction. It extends to the position on the compressor side end oil passage 13 side than the line segment connecting the point B).

またベアリングハウジングには、第1実施形態と同様に、潤滑油供給路21と、穴16と、冷却液流路19とが形成されている。   In the bearing housing, as in the first embodiment, a lubricating oil supply passage 21, a hole 16, and a coolant passage 19 are formed.

本実施形態によっても、第1実施形態と同様に、側方拡張油路22によって潤滑油の排出性能が向上するので、軸シール部における油漏れに対する耐性を向上させることができる。また、最奥部まで検査ワイヤーが挿入しやすくなるので、鋳造後における鋳砂残りの検査精度が向上する。   Also in the present embodiment, as in the first embodiment, the side oil expansion performance is improved by the side expansion oil passage 22, and thus resistance to oil leakage at the shaft seal portion can be improved. Moreover, since it becomes easy to insert a test | inspection wire to the innermost part, the test | inspection precision of the cast sand remainder after casting improves.

本実施形態が上述した第1実施形態と異なるのは、タービン側の端部油路12の上部に、コンプレッサ側へ延びる上方拡張油路23が連結されている点である。   This embodiment is different from the first embodiment described above in that an upper expansion oil passage 23 extending to the compressor side is connected to an upper portion of the end oil passage 12 on the turbine side.

本実施形態によれば、第1実施形態の構成に対して、さらに上方拡張油路23が追加されているので、タービン側の軸シール部への潤滑油の飛散量が低減されるともに、油排出路11の体積がより増えることで潤滑油の排出性能が一層向上する。したがって、軸シール部における油漏れに対する耐性を更に向上させることができる。   According to this embodiment, since the upper expansion oil passage 23 is further added to the configuration of the first embodiment, the amount of lubricating oil scattered to the shaft seal portion on the turbine side is reduced, and the oil As the volume of the discharge passage 11 increases, the lubricating oil discharge performance is further improved. Accordingly, it is possible to further improve resistance to oil leakage at the shaft seal portion.

なお、上述した第1及び第2の本実施形態では、タービン側に側方拡張油路22を設けた構成例を示したが、同様の側方拡張油路22をコンプレッサ側に設けても良い。第2本実施形態では、タービン側に上方拡張油路23を設けた構成例を示したが、同様の上方拡張油路23をコンプレッサ側に設けても良い。
また、第1及び第2の実施形態では、過給機用のベアリングハウジング10として説明したが、同様の油排出路構造をもつ他の回転機械のベアリングハウジングについても、本発明は適用可能である
In the first and second embodiments described above, the configuration example in which the side expansion oil passage 22 is provided on the turbine side is shown, but the same side expansion oil passage 22 may be provided on the compressor side. . In the second embodiment, the configuration example in which the upper expansion oil passage 23 is provided on the turbine side is shown, but the same upper expansion oil passage 23 may be provided on the compressor side.
In the first and second embodiments, the bearing housing 10 for the supercharger has been described. However, the present invention can also be applied to a bearing housing of another rotating machine having the same oil discharge path structure.

上記において、本発明の実施形態について説明を行ったが、上記に開示された本発明の実施の形態は、あくまで例示であって、本発明の範囲はこれら発明の実施の形態に限定されない。本発明の範囲は、特許請求の範囲の記載によって示され、さらに特許請求の範囲の記載と均等の意味および範囲内でのすべての変更を含むものである。   Although the embodiments of the present invention have been described above, the embodiments of the present invention disclosed above are merely examples, and the scope of the present invention is not limited to these embodiments. The scope of the present invention is indicated by the description of the scope of claims, and further includes meanings equivalent to the description of the scope of claims and all modifications within the scope.

本発明の第1実施形態にかかるベアリングハウジングの断面図である。It is sectional drawing of the bearing housing concerning 1st Embodiment of this invention. 本発明の第1実施形態にかかるベアリングハウジングにおける油排出路の中空形状を示す斜視図である。It is a perspective view which shows the hollow shape of the oil discharge path in the bearing housing concerning 1st Embodiment of this invention. 本発明の第2実施形態にかかるベアリングハウジングの断面図である。It is sectional drawing of the bearing housing concerning 2nd Embodiment of this invention. 本発明の第2実施形態にかかるベアリングハウジングにおける油排出路の中空形状を示す斜視図である。It is a perspective view which shows the hollow shape of the oil discharge path in the bearing housing concerning 2nd Embodiment of this invention. 特許文献1に開示された従来の過給機の構造を示す断面図である。It is sectional drawing which shows the structure of the conventional supercharger disclosed by patent document 1. FIG.

符号の説明Explanation of symbols

10 ベアリングハウジング
11 油排出路
12、13 端部油路
14 下部油路
15 排出口
16 穴
17 軸貫通穴
19 冷却液流路
21 潤滑油供給路
22 側方拡張油路
23 上方拡張油路
DESCRIPTION OF SYMBOLS 10 Bearing housing 11 Oil discharge path 12, 13 End oil path 14 Lower oil path 15 Discharge port 16 Hole 17 Shaft through hole 19 Coolant flow path 21 Lubricating oil supply path 22 Side expansion oil path 23 Upper expansion oil path

Claims (1)

回転軸を支持する軸受を通すための軸貫通穴と、該軸貫通穴の両端から排出される潤滑油を受け入れて下部から排出するための油排出路と備え、前記油排出路が、軸貫通穴の両端にそれぞれ連結し該軸貫通穴の両端から半径方向に広がり軸貫通穴からの潤滑油を受け入れる2つの端部油路と、各端部油路からの潤滑油を集めて下部の排出口まで導く下部油路とを有するベアリングハウジングにおいて、
前記2つの端部油路の少なくとも一方の左右両側に、他方の端部油路側に向かって延びる側方拡張油路が連結されており、
前記側方拡張油路は、高さ方向の全体にわたって、当該側方拡張油路が連結された前記端部油路の上端部と、前記排出口の中心部とを結ぶ線分よりも、他方の端部油路側の位置まで延びている、ことを特徴とするベアリングハウジング。
A shaft through-hole for passing a bearing that supports the rotating shaft; and an oil discharge passage for receiving the lubricating oil discharged from both ends of the shaft through-hole and discharging it from the lower portion, the oil discharge passage passing through the shaft Two end oil passages connected to both ends of the hole and extending radially from both ends of the shaft through hole to receive the lubricating oil from the shaft through hole, and collecting the lubricating oil from each end oil passage to collect the lower drain In a bearing housing having a lower oil passage leading to the outlet,
Side expansion oil passages extending toward the other end oil passage side are connected to the left and right sides of at least one of the two end oil passages,
The side expansion oil passage is over the whole in the height direction, rather than a line segment connecting the upper end portion of the end oil passage to which the side expansion oil passage is connected and the center portion of the discharge port. The bearing housing is characterized by extending to a position on the end oil passage side.
JP2008078369A 2008-03-25 2008-03-25 Bearing housing Expired - Fee Related JP5029837B2 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019070359A (en) * 2017-10-11 2019-05-09 日産自動車株式会社 Turbocharger

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109072979B (en) 2016-03-01 2020-03-03 三菱重工发动机和增压器株式会社 Bearing device and exhaust gas turbocharger

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59126140U (en) * 1983-02-14 1984-08-24 トヨタ自動車株式会社 Oil coking prevention device for turbo charger
JPH09242554A (en) * 1996-03-06 1997-09-16 Ishikawajima Harima Heavy Ind Co Ltd Seal structure for turbo charger
JP2006029148A (en) * 2004-07-13 2006-02-02 Ishikawajima Harima Heavy Ind Co Ltd Turbocharger

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59126140U (en) * 1983-02-14 1984-08-24 トヨタ自動車株式会社 Oil coking prevention device for turbo charger
JPH09242554A (en) * 1996-03-06 1997-09-16 Ishikawajima Harima Heavy Ind Co Ltd Seal structure for turbo charger
JP2006029148A (en) * 2004-07-13 2006-02-02 Ishikawajima Harima Heavy Ind Co Ltd Turbocharger

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019070359A (en) * 2017-10-11 2019-05-09 日産自動車株式会社 Turbocharger
JP6998720B2 (en) 2017-10-11 2022-01-18 日産自動車株式会社 Turbocharger

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