JP2006291904A - Bidirectional injection type oil jet - Google Patents

Bidirectional injection type oil jet Download PDF

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Publication number
JP2006291904A
JP2006291904A JP2005115892A JP2005115892A JP2006291904A JP 2006291904 A JP2006291904 A JP 2006291904A JP 2005115892 A JP2005115892 A JP 2005115892A JP 2005115892 A JP2005115892 A JP 2005115892A JP 2006291904 A JP2006291904 A JP 2006291904A
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Prior art keywords
oil
nozzle guide
pressed
type nozzle
valve function
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JP2005115892A
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JP2006291904A5 (en
JP4716775B2 (en
Inventor
Kenichi Nishimura
憲一 西村
Osamu Tsuda
統 津田
Takao Haneda
孝雄 羽田
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HIKARI SEIKO
Hikari Seiko Co Ltd
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HIKARI SEIKO
Hikari Seiko Co Ltd
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Priority to JP2005115892A priority Critical patent/JP4716775B2/en
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Publication of JP2006291904A5 publication Critical patent/JP2006291904A5/ja
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a piston cooling oil jet used for an automobile engine, reduced in cost by allowing two oil supply pipes, in particular, to be pressed and mounted therein through one valve function to reduce the number of oil jets. <P>SOLUTION: A T-type nozzle guide has a portion as part of the valve function and a portion integrated therewith into which two oil spray nozzles are pressed and assembled. The T-type nozzle guide is pressed into a body or a seat member is pressed into the T-type nozzle guide, and two nozzles are pressed into the T-type nozzle guide to eliminate the need for nozzle brazing work. Oil is sprayed and supplied in two directions with one valve function. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は自動車等のエンジンに使用されるピストン冷却用オイルジェットに係り、特にオイル供給管において、1つのバルブ機能から2本の供給管を圧入取り付け可能とすることでオイルジェット数の削減を実現し、コスト低減に関与するものである。   The present invention relates to an oil jet for cooling a piston used in an engine of an automobile or the like, and in particular, in an oil supply pipe, two supply pipes can be press-fitted and attached from one valve function, thereby reducing the number of oil jets. And is involved in cost reduction.

自動車等のエンジンにおける燃費向上の必要性は、地球温暖化防止や排ガス規制等の環境行政からの要請だけでなく、自然環境との調和を目指す自動車業界全体の技術的使命でもある。
効率よく燃費向上をはかるには、燃焼ガス温度をより高温にすることが有効であるが、そのためには燃焼室を取り巻く各部材の耐熱性を確保することが技術的な課題になっている。
特に、シリンダ1とピストン2の隙間をシールするピストンリング3等の耐熱性に関して、ピストン2をエンジンオイルで常時、効果的に冷却することが大きな効果を導くことが知られており、この目的でピストン冷却用オイルジェットが採用されている。(図1)
The need to improve fuel economy in engines such as automobiles is not only a request from environmental administration such as prevention of global warming and exhaust gas regulations, but also a technical mission of the entire automobile industry aiming at harmony with the natural environment.
In order to improve fuel efficiency efficiently, it is effective to raise the temperature of the combustion gas, but for that purpose, it is a technical problem to ensure the heat resistance of each member surrounding the combustion chamber.
In particular, regarding the heat resistance of the piston ring 3 or the like that seals the gap between the cylinder 1 and the piston 2, it is known that effective cooling of the piston 2 with engine oil at all times leads to a great effect. Piston cooling oil jet is adopted. (Figure 1)

現行のオイルジェットの部品構成はバルブ機能を構成するボディ4、ボール5、バネ6、ボールストッパ7とオイル噴出機能のノズル8から成り立っている。
バルブ機能としては、ボディ4上部開口部のオイル圧力に応じてボール5がシート面4−aから離れることにより所定の流量を得ている。
またバネ6はボール5を保持し、オイル圧力が減少した場合にボール5がシート面4−aに戻ることを助ける。
ボールストッパ7は、ボール5が規定位置より下がらないためのボール受け座面7−aとバネ6の座りを安定させるためのバネ受け座面7−bを有し、またバネ6の倒れ込みを防止する役目も担っている。
組み付け特徴としては、ボディ4に加工した横穴にノズル8をロウ付けすること、ボディ4とボールストッパ7をカシメることである。(図2)
The component structure of the current oil jet is composed of a body 4, a ball 5, a spring 6, a ball stopper 7 and a nozzle 8 having an oil ejection function that constitute a valve function.
As a valve function, a predetermined flow rate is obtained by the ball 5 separating from the seat surface 4-a in accordance with the oil pressure in the upper opening of the body 4.
The spring 6 holds the ball 5 and helps the ball 5 return to the seat surface 4-a when the oil pressure is reduced.
The ball stopper 7 has a ball receiving seat surface 7-a for preventing the ball 5 from falling below a specified position and a spring receiving seat surface 7-b for stabilizing the sitting of the spring 6, and prevents the spring 6 from falling down. It also has a role to play.
The assembling features include brazing the nozzle 8 in a lateral hole machined in the body 4 and caulking the body 4 and the ball stopper 7. (Figure 2)

従来技術の弱点は、ボディ4とノズル8の組み付けに関してロウ付け加工を用いている点である。
すなわちロウ付け加工は、加工時間が長く、かつ加工時に必要な諸経費が高いので量産時の問題工程となっている。
加えて、エンジンの多気筒化に対して全面的にオイルジェットを採用するとオイルジェット使用数が多くなることも課題となっている。
A weak point of the prior art is that a brazing process is used for assembling the body 4 and the nozzle 8.
In other words, brazing is a problematic process during mass production because of the long processing time and high overhead required for processing.
In addition, if oil jets are used entirely for increasing the number of cylinders in the engine, there is a problem that the number of oil jets used increases.

本発明品は、図3、図4に示すようにバルブ機能の一部となる部位と2本のオイル噴出ノズル8を圧入組み付け可能とする部位を一体化したT型ノズルガイド9を発明考案した。
すなわちT型ノズルガイド9をボディ4に圧入、またはシート部材をT型ノズルガイドに圧入し、かつ2本のノズル8をT型ノズルガイド9に圧入することでノズル8のロウ付け加工をなくし、1つのバルブ機能で2方向にオイルの噴出供給を可能とすることで上記課題を解決した。
As shown in FIGS. 3 and 4, the product of the present invention devised a T-type nozzle guide 9 in which a part that becomes a part of the valve function and a part that allows the two oil ejection nozzles 8 to be press-fitted and assembled are integrated. .
That is, the T-type nozzle guide 9 is press-fitted into the body 4, or the sheet member is press-fitted into the T-type nozzle guide, and the two nozzles 8 are press-fitted into the T-type nozzle guide 9, thereby eliminating the brazing process of the nozzle 8. The above problem has been solved by enabling oil supply in two directions with one valve function.

T型ノズルガイド9により2本のノズル8を圧入取り付け可能としたことで、従来のノズル全周をロウ付けしていた工数とそれに伴う諸経費を省く効果を得た。
またボディ4に対してT型ノズルガイド9を圧入、またはシート部材をT型ノズルガイドに圧入することで、1つのバルブ機能から2方向へオイルを噴出可能とする構造を与えている。
By enabling the two nozzles 8 to be press-fitted and attached by the T-type nozzle guide 9, it is possible to save the man-hours and costs associated with brazing the entire circumference of the conventional nozzle.
Further, a structure is provided in which oil can be ejected in two directions from one valve function by press-fitting the T-type nozzle guide 9 into the body 4 or press-fitting a sheet member into the T-type nozzle guide.

本発明は、ボディ4、またはシート部材14、ボール5、バネ6、T型ノズルガイド9、2本のノズル8から構成され、従来のボールストッパ機能とノズル8を2方向に分配する機能を一体化したT型ノズルガイド9を発明考案したことを特徴とするオイルジェットの提供を目的とする。   The present invention comprises a body 4 or a seat member 14, a ball 5, a spring 6, a T-shaped nozzle guide 9, and two nozzles 8, and integrates a conventional ball stopper function and a function of distributing the nozzles 8 in two directions. An object of the present invention is to provide an oil jet characterized in that the T-type nozzle guide 9 is invented.

本発明品であるT型ノズルガイド9の形態を実施例にもとづき図3、図4を参照して説明する。
このT型ノズルガイド9の上部開口部9−aは、バルブ機能を安定化させるためにボール受け、及びバネの倒れ込み防止とボディ4内径部への圧入部位としての役割を担っている。
その際、ボール受け座面7−aでボール5を受け、内径部でバネ6の倒れ込みを抑制し、ボディ4に対し、圧入しろと圧入長さを確保することで組み付けを可能とする。
但し、ボディ4とT型ノズルガイド9の抜け荷重の不足が懸念される場合はボディ下部の開口端をかしめても構わない。
また、上部開口部9−aを異形に成形することで、ボール5がボール受け座面7−aと接触してもオイル逃がし隙間9−bから所定のオイルが流れる仕組みとしてある。
バネ受け座面7−bは、バネ6の座り位置を安定化させる部位であり、外底面はボディ4とT型ノズルガイド9を圧入する際の押し付け面に使用することができる。
左右開口部9−cの内径部はノズル8を圧入する部位であり、ノズル8に対し、圧入しろと圧入長さを確保することで組み付け可能とする。
The form of the T-shaped nozzle guide 9 according to the present invention will be described with reference to FIGS. 3 and 4 based on the embodiment.
The upper opening 9-a of the T-shaped nozzle guide 9 plays a role as a ball receiver, a spring fall-down prevention and a press-fitting portion into the inner diameter of the body 4 in order to stabilize the valve function.
At that time, the ball 5 is received by the ball receiving seat surface 7-a, the fall of the spring 6 is suppressed at the inner diameter portion, and the body 4 can be assembled by ensuring the press-fitting margin and the press-fitting length.
However, if there is a concern about insufficient load of the body 4 and the T-shaped nozzle guide 9, the open end of the lower part of the body may be caulked.
Further, by forming the upper opening 9-a into an irregular shape, even when the ball 5 comes into contact with the ball receiving seat surface 7-a, the oil is released and predetermined oil flows from the gap 9-b.
The spring receiving seat surface 7-b is a portion that stabilizes the sitting position of the spring 6, and the outer bottom surface can be used as a pressing surface when the body 4 and the T-shaped nozzle guide 9 are press-fitted.
The inner diameter portion of the left and right opening 9-c is a portion into which the nozzle 8 is press-fitted, and can be assembled to the nozzle 8 by securing a press-fitting margin and a press-fitting length.

図5は、本発明の他の実施例におけるT型ノズルガイド9の上部開口部9−a形状を示している。
この実施例では、上部開口部9−a形状は必ずしも等方対称でなくても良い例を呈示している。
すなわちボール受け座面7−aの位置が、ボール5の直径よりも小さければよく、ボール5がシート面4−aから離れる際に安定したボールストッパの役割を果たすことが保証されれば良い。
また同時に、ボール5がボール受け座面7−aと接触してもオイル逃がし隙間9−bから所定のオイルが流れる仕組みとしてあれば良い。
FIG. 5 shows the shape of the upper opening 9-a of the T-shaped nozzle guide 9 in another embodiment of the present invention.
In this embodiment, an example is shown in which the shape of the upper opening 9-a is not necessarily isotropic.
That is, it is sufficient that the position of the ball receiving surface 7-a is smaller than the diameter of the ball 5, and it is only necessary to ensure that the ball 5 functions as a stable ball stopper when the ball 5 leaves the seat surface 4-a.
At the same time, even if the ball 5 comes into contact with the ball receiving surface 7-a, it is sufficient that a predetermined oil flows through the oil relief gap 9-b.

図6は、本発明の更に別の実施例におけるT型ノズルガイド9の形状を示している。
上述までの本発明品は、ボディ4の内径にT型ノズルガイド9を圧入するとしてきたが、本図のようにT型ノズルガイド9の肉厚を厚くし、ボディストッパ9−dを設けることで、高さ及び外径を小さくしたシート部材14をT型ノズルガイド9に圧入する構成も可能である。
FIG. 6 shows the shape of a T-shaped nozzle guide 9 in still another embodiment of the present invention.
In the products of the present invention described above, the T-type nozzle guide 9 is press-fitted into the inner diameter of the body 4, but the thickness of the T-type nozzle guide 9 is increased and a body stopper 9-d is provided as shown in the figure. Thus, a configuration in which the sheet member 14 having a reduced height and outer diameter is press-fitted into the T-shaped nozzle guide 9 is also possible.

オイルジェットの配置を表わすエンジンの一部断面図である。It is a partial cross section figure of an engine showing arrangement of an oil jet. 従来のオイルジェットの構成図である。It is a block diagram of the conventional oil jet. 本発明のオイルジェットの構成図である。It is a block diagram of the oil jet of this invention. オイルジェットの構成部品であるT型ノズルガイドの形状を示す図である。It is a figure which shows the shape of the T type nozzle guide which is a component of an oil jet. 他の実施例におけるT型ノズルガイドの上部開口部形状を示す図である。It is a figure which shows the upper opening part shape of the T-shaped nozzle guide in another Example. 他の実施例におけるT型ノズルガイドを示す図である。It is a figure which shows the T-type nozzle guide in another Example.

符号の説明Explanation of symbols

1 シリンダ
2 ピストン
3 ピストンリング
4 ボディ
4−a シート面
5 ボール
6 バネ
7 ボールストッパ
7−a ボール受け座面
7−b バネ受け座面
8 ノズル
9 T型ノズルガイド
9−a 上部開口部
9−b オイル逃がし隙間
9−c 左右開口部
9−d ボディストッパ
10 コンロッド
11 クランク軸
12 エンジンルーム
13 ブラケット
14 シート部材















DESCRIPTION OF SYMBOLS 1 Cylinder 2 Piston 3 Piston ring 4 Body 4-a Seat surface 5 Ball 6 Spring 7 Ball stopper 7-a Ball receiving seat surface 7-b Spring receiving seat surface 8 Nozzle 9 T type nozzle guide 9-a Upper opening 9- b Oil relief gap 9-c Left and right opening 9-d Body stopper 10 Connecting rod 11 Crankshaft 12 Engine room 13 Bracket 14 Seat member















Claims (1)

エンジン内にあって、バルブ機能を内蔵し、かつピストンを冷却するためにエンジンオイルを供給するオイルジェットにおいて、開口部につながるシート面を有するボディ、またはシート部材と、バネを固定する部位とオイルを2方向に分配する部位を一体化したT型ノズルガイドと、オイルを噴出する2本のノズル等から構成され、T型ノズルガイドをボディに圧入、またはシート部材をT型ノズルガイドに圧入し、かつノズル2本をT型ノズルガイドに圧入することで、ノズルのロウ付け加工をなくし、1つのバルブ機能で2方向にオイルの噴出供給を可能とすることを特徴とするピストン冷却用オイルジェット。



























In an oil jet that has a valve function and supplies engine oil to cool the piston, the body or seat member that has a seat surface connected to the opening, the spring fixing part, and the oil It is composed of a T-type nozzle guide that integrates the parts that distribute the oil in two directions, and two nozzles that eject oil. The T-type nozzle guide is pressed into the body, or the sheet member is pressed into the T-type nozzle guide. In addition, an oil jet for cooling a piston is characterized in that, by press-fitting two nozzles into a T-shaped nozzle guide, the nozzle brazing process is eliminated, and oil can be supplied in two directions with a single valve function. .



























JP2005115892A 2005-04-13 2005-04-13 Oil jet for piston cooling Active JP4716775B2 (en)

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JP2006291904A5 JP2006291904A5 (en) 2008-10-16
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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007182819A (en) * 2006-01-10 2007-07-19 Otics Corp Oil jet for cooling piston
JP2009191679A (en) * 2008-02-13 2009-08-27 Ogino Kogyo Kk Oil jet device
JP2009197630A (en) * 2008-02-20 2009-09-03 Ogino Kogyo Kk Oil jet device
WO2009146073A2 (en) * 2008-04-03 2009-12-03 Arrowhead Industries, Inc. Piston bottom cooler
JP2013241913A (en) * 2012-05-22 2013-12-05 Hino Motors Ltd Oil injection device
JP2014070611A (en) * 2012-09-29 2014-04-21 Taiho Kogyo Co Ltd Piston cooling jet
JP2015059539A (en) * 2013-09-20 2015-03-30 光精工株式会社 Oil jet
JP2016188623A (en) * 2015-03-30 2016-11-04 本田技研工業株式会社 Oil jet device
EP3498991A1 (en) * 2017-12-12 2019-06-19 Dongbo Ind. Co., Ltd. Two-piece type oil jet assembly and method of manufacturing the same

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5870407U (en) * 1981-11-02 1983-05-13 株式会社クボタ Oil injection nozzle for piston cooling in internal combustion engines, etc.
JPH0521127U (en) * 1991-08-30 1993-03-19 いすゞ自動車株式会社 Oil jet device for piston cooling
JP2004124938A (en) * 2002-09-02 2004-04-22 Bontaz Centre COOLING NOZZLE OF MUlTIPLE SPRAYING ENGINE AND ENGINE EQUIPPED WITH THE NOZZLE

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5870407U (en) * 1981-11-02 1983-05-13 株式会社クボタ Oil injection nozzle for piston cooling in internal combustion engines, etc.
JPH0521127U (en) * 1991-08-30 1993-03-19 いすゞ自動車株式会社 Oil jet device for piston cooling
JP2004124938A (en) * 2002-09-02 2004-04-22 Bontaz Centre COOLING NOZZLE OF MUlTIPLE SPRAYING ENGINE AND ENGINE EQUIPPED WITH THE NOZZLE

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4527061B2 (en) * 2006-01-10 2010-08-18 株式会社オティックス Oil jet for piston cooling
JP2007182819A (en) * 2006-01-10 2007-07-19 Otics Corp Oil jet for cooling piston
JP2009191679A (en) * 2008-02-13 2009-08-27 Ogino Kogyo Kk Oil jet device
JP2009197630A (en) * 2008-02-20 2009-09-03 Ogino Kogyo Kk Oil jet device
JP4570664B2 (en) * 2008-02-20 2010-10-27 荻野工業株式会社 Oil jet equipment
WO2009146073A2 (en) * 2008-04-03 2009-12-03 Arrowhead Industries, Inc. Piston bottom cooler
WO2009146073A3 (en) * 2008-04-03 2010-01-21 Arrowhead Industries, Inc. Piston bottom cooler
JP2013241913A (en) * 2012-05-22 2013-12-05 Hino Motors Ltd Oil injection device
JP2014070611A (en) * 2012-09-29 2014-04-21 Taiho Kogyo Co Ltd Piston cooling jet
JP2015059539A (en) * 2013-09-20 2015-03-30 光精工株式会社 Oil jet
JP2016188623A (en) * 2015-03-30 2016-11-04 本田技研工業株式会社 Oil jet device
EP3498991A1 (en) * 2017-12-12 2019-06-19 Dongbo Ind. Co., Ltd. Two-piece type oil jet assembly and method of manufacturing the same
CN109944727A (en) * 2017-12-12 2019-06-28 东宝株式会社 Two-piece type oil spout component and its manufacturing method

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