JP2010031981A - Transmission - Google Patents

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JP2010031981A
JP2010031981A JP2008195661A JP2008195661A JP2010031981A JP 2010031981 A JP2010031981 A JP 2010031981A JP 2008195661 A JP2008195661 A JP 2008195661A JP 2008195661 A JP2008195661 A JP 2008195661A JP 2010031981 A JP2010031981 A JP 2010031981A
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heat exchanger
transmission
hydraulic oil
case
heat
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JP5277773B2 (en
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Tatsuhiko Iwasaki
龍彦 岩崎
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Mazda Motor Corp
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Mazda Motor Corp
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/0412—Cooling or heating; Control of temperature
    • F16H57/0415—Air cooling or ventilation; Heat exchangers; Thermal insulations
    • F16H57/0417—Heat exchangers adapted or integrated in the gearing

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Details Of Gearings (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To reduce the weight of a heat exchanger disposed to a transmission, and to keep manufacturing cost thereof low. <P>SOLUTION: The transmission includes: the heat exchanger 18 exchanging heat between working fluid supplied to a predetermined portion in the transmission and a heat medium supplied from the outside; and a transmission case 14 of which a bearing surface 14b for mounting the heat exchanger 18 is disposed to an external surface thereof. The heat exchanger 18 has an abutting face 18a abutting on the bearing surface 14b in mounting thereof, and the abutting face 18a has an introducing part introducing the heat medium into the inside and a guiding-out part 18e2 guiding the heat medium to the outside. By abutment of the abutting face 18a on the bearing surface 14b, stiffness of the abutting face 18a having the heat medium introducing part and the heat medium guiding-out part 18e2 is increased. Therefore, the need of enhancing the stiffness of the part with the abutting face 18a itself is eliminated. The weight of the heat exchanger 18 is reduced, and its manufacturing cost is held down. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、作動油と熱媒体との間で熱交換する熱交換器がケースの外面に取り付けられる変速機に関し、自動車用変速機の製造技術の分野に属する。   The present invention relates to a transmission in which a heat exchanger for exchanging heat between hydraulic oil and a heat medium is attached to the outer surface of a case, and belongs to the field of manufacturing technology for automobile transmissions.

従来、自動車用の自動変速機や無段変速機には、その内部の作動部を油圧によって作動させるための作動油の供給システムが備えられる。また、作動油の油温が低すぎると粘度が高まり作動部の作動に遅れが生じ、油温が高すぎると作動油の劣化が早まるなどの不具合が発生するため、この対処として、作動油を適温に維持するための熱交換器が備えられる。   2. Description of the Related Art Conventionally, automatic transmissions and continuously variable transmissions for automobiles are provided with a hydraulic oil supply system for operating an internal operation portion by hydraulic pressure. In addition, if the oil temperature is too low, the viscosity will increase and the operation of the operating part will be delayed, and if the oil temperature is too high, problems such as faster deterioration of the oil will occur. A heat exchanger is provided to maintain an appropriate temperature.

この熱交換器は、作動油の油温が高温である場合は、ラジエータで冷却されたエンジンの冷却水（熱媒体）との間で熱交換をして作動油を冷却し、一方、作動油の油温が低温である場合は、ラジエータをバイパスした高温の冷却水との間で熱交換をして作動油を暖めるように構成されている。   When the oil temperature of the hydraulic oil is high, this heat exchanger cools the hydraulic oil by exchanging heat with the engine coolant (heat medium) cooled by the radiator. When the oil temperature is low, the hydraulic oil is heated by exchanging heat with high-temperature cooling water that bypasses the radiator.

このような熱交換器として、例えば特許文献１に記載されたものがある。この熱交換器は、一方の端部に、熱媒体を内部に導入するためのホースと熱媒体を外部に導出するためのホースがそれぞれ接続される導出部と導入部とを備えている。また、他方の端部には、変速機ケースの座面に対接される合わせ面を有し、この合わせ面に作動油を変速機内に導出する導出口と変速機内からの作動油を内部に導入する導入口とを備えている（すなわち、変速機ケースの座面は、これらの導出口および導入口と連通するとともに該ケース内部の所定箇所と連通する開口を備えている。）。   An example of such a heat exchanger is described in Patent Document 1. This heat exchanger includes, at one end, a lead-out portion and an introduction portion to which a hose for introducing the heat medium into the inside and a hose for leading the heat medium to the outside are connected, respectively. Further, the other end portion has a mating surface that comes into contact with the seat surface of the transmission case, and a lead-out port through which hydraulic oil is led into the transmission and the hydraulic fluid from the transmission are provided on the mating surface. (In other words, the seat surface of the transmission case has an opening that communicates with the lead-out port and the introduction port and communicates with a predetermined portion inside the case.)

また、熱交換器の内部に、作動油と熱媒体との間で熱交換を行うための熱交換エレメントが収納されている。この熱交換器によれば、変速機内からの作動油は、導入口を介して熱交換器内部に導入され、導入部から導入された熱媒体との間で、熱交換エレメントを介して熱交換される。そして、熱交換された作動油は、導出口を介して再び変速機ケース内に戻され、熱交換後の熱媒体は導出部を介して熱交換器の外部に送られる。   A heat exchange element for performing heat exchange between the hydraulic oil and the heat medium is housed inside the heat exchanger. According to this heat exchanger, the hydraulic oil from the transmission is introduced into the heat exchanger through the introduction port, and exchanges heat with the heat medium introduced from the introduction unit through the heat exchange element. Is done. The heat-exchanged hydraulic oil is returned again into the transmission case via the outlet, and the heat medium after the heat exchange is sent to the outside of the heat exchanger via the outlet.

特開２００６−１０５１８７号公報JP 2006-105187 A

ところが、特許文献１の熱交換器は重く、製造コストが高いという問題がある。まず、変速機ケースの座面と対接する合わせ面の平面度を高く維持するために、すなわち座面に形成された開口と合わせ面に形成された導出口や導入口とを液密に連通させるために、この合わせ面を備える端部を高剛性に形成する必要がある。   However, the heat exchanger of Patent Document 1 is heavy and has a problem of high manufacturing cost. First, in order to maintain high flatness of the mating surface that contacts the seating surface of the transmission case, that is, the opening formed in the seating surface and the outlet port and the inlet port formed in the mating surface are in fluid-tight communication. Therefore, it is necessary to form the end provided with the mating surface with high rigidity.

また、ホースと連結される熱媒体導入部および導出部は熱交換器の本体から突出した形状であるので、該ホースを介してその根元である接合部に荷重が集中しやすく、そのため熱媒体導入部および導出部が設けられる反対側の端部も高剛性に形成する必要がある。   Moreover, since the heat medium introduction part and the lead-out part connected to the hose have a shape protruding from the main body of the heat exchanger, the load tends to concentrate on the joint part at the base via the hose. It is also necessary to form the end portion on the opposite side where the portion and the lead-out portion are provided with high rigidity.

このように、特許文献１の熱交換器では、熱交換性能に関わらない両端部を高剛性にする必要があり、その結果、重量が重くなり、製造コストが高くなる。   Thus, in the heat exchanger of patent document 1, it is necessary to make the both ends which are not related to heat exchange performance high rigidity, As a result, a weight becomes heavy and manufacturing cost becomes high.

そこで、本発明は、高剛性が必要な熱交換性能と関わらない部分を少なくして軽量化するとともに製造コストを低く抑制することができる構造の熱交換器を有する変速機を提供することを課題とする。   SUMMARY OF THE INVENTION It is an object of the present invention to provide a transmission having a heat exchanger having a structure that can reduce the weight and reduce the manufacturing cost while reducing the portion not related to the heat exchange performance that requires high rigidity. And

上述の課題を解決するために、請求項１に記載の発明は、変速機内の所定箇所に供給される作動油と外部から供給される熱媒体との間で熱交換する熱交換器と、該熱交換器を取り付ける座面が外面に設けられた変速機ケースとを有する変速機であって、
前記熱交換器は、取り付け時に前記座面と対接する合わせ面を有し、該合わせ面に、熱媒体を内部に導入する導入部と、熱媒体を外部に導出する導出部とを備えていることを特徴とする。 In order to solve the above-described problem, the invention according to claim 1 is directed to a heat exchanger that exchanges heat between hydraulic oil supplied to a predetermined location in the transmission and a heat medium supplied from outside. A transmission having a transmission case with a seating surface to which a heat exchanger is attached provided on an outer surface;
The heat exchanger has a mating surface that comes into contact with the seating surface at the time of mounting, and includes an introduction unit that introduces the heat medium into the mating surface and a lead-out unit that leads the heat medium to the outside. It is characterized by that.

また、請求項２に記載の発明は、請求項１に記載の変速機において、
前記熱交換器の合わせ面は、作動油を該熱交換器の内部に導入する導入口と、作動油を該熱交換器から外部に導出する導出口とを備えているとともに、
前記変速機ケースの座面は、前記合わせ面における導入口および導出口とそれぞれ連通する作動油の導出口および導入口を備え、
前記合わせ面と座面との間に、合わせ面の導入口および導出口と座面の導出口および導入口との各連通部をそれぞれシールするシール手段が設けられていることを特徴とする。 According to a second aspect of the present invention, in the transmission according to the first aspect,
The mating surface of the heat exchanger includes an introduction port for introducing hydraulic oil into the heat exchanger, and a lead-out port for extracting the hydraulic oil from the heat exchanger to the outside.
The seat surface of the transmission case includes an outlet and an inlet for hydraulic oil communicating with the inlet and the outlet on the mating surface, respectively.
Sealing means is provided between the mating surface and the seating surface to seal each communicating portion between the mating surface inlet and outlet and the seating surface outlet and inlet.

さらに、請求項３に記載の発明は、請求項１または２に記載の変速機において、
前記熱交換器の熱媒体導入部および導出部は、前記合わせ面から突出してホースと連結されるパイプ状部材で構成され、
前記座面を備える変速機ケースの熱交換器取り付け部は、前記パイプ状部材を通過させる欠肉部を備えることを特徴とする。 Furthermore, the invention according to claim 3 is the transmission according to claim 1 or 2,
The heat medium introduction part and the lead-out part of the heat exchanger are configured by pipe-like members that protrude from the mating surfaces and are connected to a hose,
The heat exchanger mounting portion of the transmission case including the seating surface includes a lacking portion that allows the pipe-shaped member to pass therethrough.

さらにまた、請求項４に記載の発明は、請求項２または３に記載の変速機において、
前記合わせ面上において前記作動油の導入口と導出口とを結ぶ直線に対して前記熱媒体導入部と導出部とを結ぶ直線が交差するように、前記作動油の導入口および導出口と、前記熱媒体導入部および導出部とが前記合わせ面に配置されていることを特徴とする。 Furthermore, the invention according to claim 4 is the transmission according to claim 2 or 3,
The inlet and outlet of the hydraulic oil so that the straight line connecting the inlet and outlet of the hydraulic oil intersects with the straight line connecting the inlet and outlet of the hydraulic oil on the mating surface; The heat medium introduction part and the lead-out part are arranged on the mating surface.

加えて、請求項５に記載の発明は、請求項１から４のいずれか１項に記載の変速機において、
前記変速機ケースは、エンジンと結合される端部が反対側の端部に比べて大径の発進装置収納部を有し、
前記熱交換器は、前記発進装置収納部における小径の反エンジン側の端部寄りに取り付けられることを特徴とする。 In addition, the invention according to claim 5 is the transmission according to any one of claims 1 to 4,
The transmission case has a starting device storage portion whose end connected to the engine has a larger diameter than the opposite end.
The heat exchanger is attached to the end portion on the side opposite to the small-diameter engine in the starting device storage portion.

加えてまた、請求項６に記載の発明は、請求項１から５のいずれか１項に記載の変速機において、
前記変速機ケースの熱交換器取り付け部は、ケース外面から外方に突出して形成され、その突出端部に熱交換器を外側から保護する保護部が設けられていることを特徴とする。 In addition, according to a sixth aspect of the present invention, in the transmission according to any one of the first to fifth aspects,
The heat exchanger mounting portion of the transmission case is formed to protrude outward from the outer surface of the case, and a protective portion for protecting the heat exchanger from the outside is provided at the protruding end portion.

さらに加えて、請求項７に記載の発明は、請求項１から６のいずれか１項に記載の変速機において、
前記変速機ケースの熱交換器取り付け部は、ケース外面から外方に突出する棚状に形成され、その下面に前記座面を備えるとともに、
該取付け部の上面とケース外面との間にリブが設けられ、
その作動油の導入口および導出口は、それぞれ前記リブ内に形成された油路を介して前記変速機ケース内に通じていることを特徴とする。 In addition, the invention according to claim 7 is the transmission according to any one of claims 1 to 6,
The heat exchanger mounting portion of the transmission case is formed in a shelf shape protruding outward from the outer surface of the case, and includes the seating surface on the lower surface thereof,
A rib is provided between the upper surface of the mounting portion and the outer surface of the case;
The operation oil introduction port and the discharge port are respectively connected to the transmission case through oil passages formed in the rib.

請求項１に記載の発明によれば、熱交換器は、熱媒体を内部に導入する導入部と、熱媒体を外部に導出する導出部とを、取り付け時に変速機ケースの座面と対接する合わせ面に備える。座面と対接することにより、熱媒体導入部および導出部が設けられた合わせ面は剛性が高くなる。そのため、この合わせ面を備える部分自体を高剛性にする必要がなくなる。その結果、熱交換器は、その重量が軽くなり、製造コストが低く抑えられる。   According to the first aspect of the present invention, the heat exchanger makes contact with the seat surface of the transmission case at the time of attachment of the introduction portion for introducing the heat medium therein and the lead-out portion for extracting the heat medium to the outside. Prepare for mating surfaces. By making contact with the seating surface, the mating surface provided with the heat medium introduction part and the lead-out part has high rigidity. Therefore, it is not necessary to make the portion itself provided with the mating surface highly rigid. As a result, the weight of the heat exchanger is reduced and the manufacturing cost is kept low.

また、請求項２に記載の発明によれば、熱交換器の合わせ面は、作動油を内部に導入する導入口と、作動油を外部に導出する導出口とを備える。そして、変速機ケースの座面は、これら合わせ面における導入口および導出口とそれぞれ連通する作動油の導出口および導入口を備える。この合わせ面と座面との間に、合わせ面の導入口および導出口と座面の導出口および導入口との各連通部をそれぞれシールするシール手段が設けられる。変速機の座面と対接することにより剛性が高まる合わせ面に、すなわち熱媒体の導入部と導出部とを備える合わせ面に作動油の導出口および導入口が設けられるので、別途、これらの作動油の導出口および導入口を備える剛性が高い部分を熱交換器に設ける必要がなくなる。また、シール手段により、熱交換器から変速機ケースに、またはその逆に、作動油は漏れることなく流れることができる。   According to the invention described in claim 2, the mating surface of the heat exchanger includes an introduction port for introducing hydraulic oil into the interior and a discharge port for extracting hydraulic fluid to the outside. The seat surface of the transmission case is provided with hydraulic oil outlets and inlets communicating with the inlets and outlets of the mating surfaces, respectively. Sealing means is provided between the mating surface and the seating surface to seal each communicating portion between the mating surface introduction port and the lead-out port and the seating surface lead-out port and the introduction port. Hydraulic oil outlets and inlets are provided on the mating surface where rigidity is increased by making contact with the transmission bearing surface, that is, the mating surface including the introduction portion and the outlet portion of the heat medium. There is no need to provide the heat exchanger with a highly rigid portion including the oil outlet and inlet. Also, the sealing means allows the hydraulic oil to flow without leaking from the heat exchanger to the transmission case or vice versa.

さらに、請求項３に記載の発明によれば、熱交換器の熱媒体導入部および導出部は、合わせ面から突出してホースと連結されるパイプ状部材で構成され、座面を備える変速機ケースの熱交換器取り付け部は、パイプ状部材を通過させる欠肉部を備える。すなわち、パイプ状部材が通過する貫通穴ではなく欠肉部を形成するだけなので、変速機ケースの製造が容易になる。   Furthermore, according to the invention described in claim 3, the heat medium introduction part and the lead-out part of the heat exchanger are configured by a pipe-like member that protrudes from the mating surface and is connected to the hose, and includes a transmission surface. The heat exchanger mounting portion includes a lacking portion that allows the pipe-shaped member to pass therethrough. In other words, the transmission case can be easily manufactured because only the hollow portion is formed instead of the through hole through which the pipe member passes.

さらにまた、請求項４に記載の発明によれば、合わせ面上において作動油の導入口と導出口とを結ぶ直線に対して熱媒体導入部と導出部とを結ぶ直線が交差するように、作動油の導入口および導出口と、熱媒体導入部および導出部とが合わせ面に配置されている。言い換えると、作動油の導入口から導出口への流れに対して、熱媒体の導入部から導出部への流れが、平行ではなく、複雑な流れになる。その結果、作動油と熱媒体との間の熱交換面が広くなり、高い熱交換効率が得られる。   Furthermore, according to the invention described in claim 4, on the mating surface, a straight line connecting the heating medium introduction part and the outlet part intersects with a straight line connecting the inlet and outlet of the hydraulic oil, The hydraulic oil inlet and outlet, and the heat medium inlet and outlet are arranged on the mating surfaces. In other words, the flow from the introduction part of the heat medium to the outlet part is not parallel to the flow from the inlet of the hydraulic oil to the outlet, but is a complicated flow. As a result, the heat exchange surface between the hydraulic oil and the heat medium is widened, and high heat exchange efficiency is obtained.

加えて、請求項５に記載の発明によれば、変速機ケースは、エンジンと結合される端部が反対側の端部に比べて大径の発進装置収納部を有し、熱交換器は、発進装置収納部における小径の反エンジン側の端部寄りに取り付けられる。熱交換器が取り付けられ、発進装置収納部における小径の端部寄り部分の周囲のデッドスペースが有効利用される。   In addition, according to the fifth aspect of the present invention, the transmission case has a starter housing portion whose end connected to the engine is larger in diameter than the end on the opposite side, and the heat exchanger is It is attached near the end of the starting device storage portion on the side opposite to the small-diameter engine. A heat exchanger is attached, and the dead space around the small diameter end portion of the starter housing portion is effectively used.

加えてまた、請求項６に記載の発明によれば、変速機ケースの熱交換器取り付け部は、ケース外面から外方に突出して形成され、その突出端部に熱交換器を外側から保護する保護部が設けられている。熱交換器を取り付けた後の変速機ケース（変速機）を搬送するときなどに、熱交換器が外側からの接触に対して保護される。   In addition, according to the invention described in claim 6, the heat exchanger mounting portion of the transmission case is formed to protrude outward from the outer surface of the case, and the heat exchanger is protected from the outside at the protruding end portion. A protection part is provided. When transporting the transmission case (transmission) after the heat exchanger is installed, the heat exchanger is protected against contact from the outside.

さらに加えて、請求項７に記載の発明によれば、変速機ケースの熱交換器取り付け部は、ケース外面から外方に突出して棚状に形成され、その下面に座面を備えるとともに上面とケース外面との間にリブが設けられる。このリブによって棚状の熱交換器取り付け部の剛性が高くなる。また、座面の作動油の導入口および導出口は、それぞれリブ内に形成された油路を介して変速機ケース内に通じている。作動油の導入口および導出口と変速機ケース内との間の油路がリブ内に形成されるので、すなわち棚状の取り付け部内のみに油路が形成されるわけではないので、油路を形成することによる該取り付け部の剛性の低下を抑制することができる。   In addition, according to the invention described in claim 7, the heat exchanger mounting portion of the transmission case is formed in a shelf shape protruding outward from the outer surface of the case, and has a seating surface on the lower surface and an upper surface. A rib is provided between the outer surface of the case. This rib increases the rigidity of the shelf-like heat exchanger mounting portion. Further, the hydraulic oil inlet and outlet of the seat surface communicate with the transmission case via oil passages formed in the ribs. Since the oil passage between the inlet and outlet of the hydraulic oil and the inside of the transmission case is formed in the rib, that is, the oil passage is not formed only in the shelf-like mounting portion. It is possible to suppress a decrease in rigidity of the attachment portion due to the formation.

図１は、本発明の一実施形態に係る変速機の外観を示している。符号１０に示す変速機は、変速機ケースを構成する、変速機構を収納する変速機構ケース１２と、そのフロント側（図中左側）に結合されて内部にトルクコンバータを収納するコンバータケース（請求の範囲に記載の「発進装置収納部」に対応）１４とを有する。また、変速機１０は、変速機構ケース１２の下部に取り付けられたオイルパン１６と、コンバータケース１４の側面に取り付けられた熱交換器１８と、オイルパン１６内に収納されたバルブボディ２０とを有する。   FIG. 1 shows the appearance of a transmission according to an embodiment of the present invention. A transmission indicated by reference numeral 10 includes a transmission mechanism case 12 that houses a transmission mechanism, and a converter case that is coupled to the front side (left side in the drawing) and houses a torque converter therein. 14 corresponding to “starting device storage” described in the range. Further, the transmission 10 includes an oil pan 16 attached to a lower portion of the transmission mechanism case 12, a heat exchanger 18 attached to a side surface of the converter case 14, and a valve body 20 housed in the oil pan 16. Have.

熱交換器１８は、変速機構ケース１２内に供給する作動油と、外部から供給される熱媒体（例えば、エンジンの冷却水）との間で熱交換するためのものであって、図１のＸ方向に見た図２に示すように、コンバータケース１４の側面から水平に外方に突出した棚状の取り付け部１４ａの下面（座面）１４ｂに取り付けられている。   The heat exchanger 18 is for exchanging heat between hydraulic oil supplied into the transmission mechanism case 12 and a heat medium (for example, engine coolant) supplied from the outside. As shown in FIG. 2 as viewed in the X direction, the converter case 14 is attached to a lower surface (seat surface) 14b of a shelf-like attachment portion 14a that protrudes outward from the side surface horizontally.

具体的には、熱交換器１８は、図２のＹ方向に見た非取り付け状態の熱交換器１８の図３（Ａ）にも示すように、コンバータケース１４の取り付け部１４ａの座面１４ｂと対接する合わせ面１８ａを備えるプレート状のブラケット部１８ｂと、該ブラケット部１８ｂの下面に吊下げ状態で取り付けられて作動油と熱媒体との間で熱交換するための熱交換エレメントを収納する収納部１８ｃとを有する。   Specifically, as shown in FIG. 3A of the heat exchanger 18 in the non-attached state as viewed in the Y direction in FIG. 2, the heat exchanger 18 is a seating surface 14 b of the attachment portion 14 a of the converter case 14. A plate-like bracket portion 18b having a mating surface 18a that comes into contact with the heat sink and a heat exchange element that is attached to the lower surface of the bracket portion 18b in a suspended state and exchanges heat between the hydraulic oil and the heat medium. And a storage portion 18c.

熱交換器１８のブラケット部１８ｂには、熱交換器１８を取り付け部１４ａに固定するためのボルト２２が通過する貫通穴１８ｄが形成されている。また、合わせ面１８ａには、熱媒体の供給源（例えば、ラジエータ）に通じるホース（図示せず）が接続されて作動油と熱交換する熱媒体を熱交換器１８内に導入する、パイプ状部材で構成される熱媒体導入部１８ｅ１が設けられている。さらに、熱媒体の送出先（例えば、エンジン）に通じるホース（図示せず）が接続されて熱交換器１８内の作動油と熱交換した後の熱媒体を外部に導出する、パイプ状部材で構成される導出部１８ｅ２が設けられている。これらの導入部１８ｅ１と導出部１８ｅ２は、収納部１８ｃ内の熱媒体流路（図示せず）を介して通じている。   A through hole 18d through which a bolt 22 for fixing the heat exchanger 18 to the mounting portion 14a passes is formed in the bracket portion 18b of the heat exchanger 18. The mating surface 18a is connected to a hose (not shown) that leads to a heat medium supply source (for example, a radiator), and introduces a heat medium that exchanges heat with the working oil into the heat exchanger 18. A heat medium introducing portion 18e1 composed of members is provided. In addition, a pipe-like member is connected to a hose (not shown) that leads to a heat medium delivery destination (for example, an engine) and leads the heat medium after exchanging heat with the hydraulic oil in the heat exchanger 18 to the outside. A derivation unit 18e2 is provided. These introduction part 18e1 and derivation | leading-out part 18e2 are connected via the thermal-medium flow path (not shown) in the accommodating part 18c.

さらに、合わせ面１８ａには、例えばバルブボディ２０からの作動油を熱交換器１８内に導入するための導入口１８ｆ１と、熱交換後の作動油を外部に導出するための導出口１８ｆ２とが形成されている。これらの導入口１８ｆ１と導出口１８ｆ２は、収納部１８ｃ内の作動油流路（図示せず）を介して通じている。また、熱交換器１８の取り付け状態を示す図３（Ｂ）や同図のＺ方向に見た断面を示す図４に示すように、リング状のシール部材２４が収納される溝１８ｇが、導入口１８ｆ１と導出口１８ｆ２の周りに形成されている。   Further, the mating surface 18a has, for example, an inlet 18f1 for introducing hydraulic oil from the valve body 20 into the heat exchanger 18, and an outlet 18f2 for extracting the hydraulic oil after heat exchange to the outside. Is formed. The inlet 18f1 and the outlet 18f2 communicate with each other via a hydraulic oil passage (not shown) in the storage portion 18c. Further, as shown in FIG. 3B showing the mounting state of the heat exchanger 18 and FIG. 4 showing the cross section seen in the Z direction of the same figure, a groove 18g for accommodating the ring-shaped seal member 24 is introduced. It is formed around the mouth 18f1 and the outlet 18f2.

この合わせ面１８ａ上において作動油の導入口１８ｆ１と導出口１８ｆ２とを結ぶ直線に対して、熱媒体導入部１８ｅ１と導出部１８ｅ２とを結ぶ直線が交差するように、作動油の導入口１８ｆ１および導出口１８ｆ２と、熱媒体導入部１８ｅ１および導出部１８ｅ２とが合わせ面１８ａに配置されている。したがって、収納部１８ｃ内において、作動油流路に対して、熱媒体流路は単純に平行ではなく、複雑な流路で構成される。そのため、作動油流路と熱媒体流路とが広い接触面積で接触し、すなわち作動油と熱媒体との間の熱交換面が広くなり、その結果、高い熱交換効率が得られる。   On the mating surface 18a, the hydraulic oil inlet 18f1 and the hydraulic oil inlet 18f1 and the outlet 18f2 intersect with a straight line connecting the heat medium inlet 18e1 and outlet 18e2. The outlet 18f2, the heat medium introducing portion 18e1, and the leading portion 18e2 are disposed on the mating surface 18a. Therefore, in the storage portion 18c, the heat medium flow path is not simply parallel to the hydraulic oil flow path but is configured by a complicated flow path. Therefore, the hydraulic oil flow path and the heat medium flow path are in contact with each other with a wide contact area, that is, the heat exchange surface between the hydraulic oil and the heat medium is widened, and as a result, high heat exchange efficiency is obtained.

このような熱交換器１８が取り付けられるコンバータケース１４の取り付け部１４ａの詳細を説明すると、該取り付け部１４ａは、図１や図２に示すように、取り付け時に熱交換器１８がコンバータケース１４の側面において小径部１４ｂ寄りに位置するように構成されている。これは、車両搭載時において、エンジンが結合する大径部１４ｃの周囲は他の装置が近接して熱交換器１８の取り付けスペースがなく、小径部１４ｂの周囲がデッドスペースとして空いているからである。   The details of the attachment portion 14a of the converter case 14 to which such a heat exchanger 18 is attached will be described. The attachment portion 14a is attached to the converter case 14 at the time of attachment as shown in FIG. 1 and FIG. It is comprised so that it may be located near the small diameter part 14b in the side surface. This is because when the vehicle is mounted, there is no space for mounting the heat exchanger 18 around the large-diameter portion 14c to which the engine is coupled, and the small-diameter portion 14b is empty as a dead space. is there.

また、取り付け部１４ａには、図３（Ｂ）に示すように、熱交換器１８の熱媒体導入部１８ｅ１や導出部１８ｅ２が干渉しないように、該導入部１８ｅ１や導出部１８ｅ２を通過させる、欠肉部１４ｄ１、１４ｄ２が形成されている。   Further, as shown in FIG. 3 (B), the introduction part 18e1 and the lead-out part 18e2 are passed through the attachment part 14a so that the heat medium introduction part 18e1 and the lead-out part 18e2 of the heat exchanger 18 do not interfere with each other. Insufficient portions 14d1 and 14d2 are formed.

なお、熱交換器１８の熱媒体導入部１８ｅ１や導出部１８ｅ２との干渉を回避するために、取り付け部１４ａに導入部１８ｅ１や導出部１８ｅ２が通過する貫通穴を形成することが考えられるが、それではコンバータケース１４の製造が複雑になるとともに、熱交換器１８の取り付けが困難になる可能性がある。例えば、鋳造でコンバータケース１４を成形した後にドリルで貫通穴を形成する必要が生じる、ドリルで貫通穴を形成しない場合は鋳造の金型が複雑になる可能性がある。これに対し、欠肉部１４ｄ１や１４ｄ２は、単純な金型で成形可能で、熱交換器１８を下側から取り付け部１４ａの座面１４ｂに向かって移動させるだけで、熱交換器１８の合わせ面１８ａと取り付け部１４ａの座面１４ｂを対接させることを可能とする（これらを可能にする形状にされている。）。   In order to avoid interference with the heat medium introduction part 18e1 and the lead-out part 18e2 of the heat exchanger 18, it is conceivable to form a through hole through which the introduction part 18e1 and the lead-out part 18e2 pass in the attachment part 14a. This complicates the manufacture of the converter case 14 and may make it difficult to attach the heat exchanger 18. For example, it is necessary to form a through hole with a drill after the converter case 14 is formed by casting. If the through hole is not formed with a drill, the casting mold may be complicated. On the other hand, the thinned portions 14d1 and 14d2 can be formed with a simple mold, and the heat exchanger 18 can be aligned only by moving the heat exchanger 18 from the lower side toward the seating surface 14b of the mounting portion 14a. The surface 18a and the seating surface 14b of the mounting portion 14a can be brought into contact with each other (they are configured to enable these).

さらに、棚状の取り付け部１４ａは、図１、図２、および図３（Ｂ）、図４に示すように、その上面とコンバータケース１４との間に設けられたリブ１４ｅによって支持されている。その結果、棚状の取り付け部１４ａの剛性が高められている。具体的に言うと、このリブ１４ｅは、図３(Ｂ)に示すように２つの欠肉部１４ｄ１と１４ｄ２との間の取り付け部１４ａの部分から、図１や図２に示すように、コンバータケース１４の小径部１４ｂの外面に向かって延びている。   Furthermore, as shown in FIGS. 1, 2, 3 </ b> B, and 4, the shelf-like attachment portion 14 a is supported by a rib 14 e provided between the upper surface of the shelf-like attachment portion 14 a and the converter case 14. . As a result, the rigidity of the shelf-like attachment portion 14a is increased. More specifically, the rib 14e is formed from the portion of the mounting portion 14a between the two thinned portions 14d1 and 14d2 as shown in FIG. 3B, as shown in FIG. 1 and FIG. The case 14 extends toward the outer surface of the small diameter portion 14b.

さらにまた、取り付け部１４ａの座面１４ｂには、図４に示すように、熱交換器１８の作動油の導入口１８ｆ１と連通する導出口１４ｆ１と、熱交換器１８の導出口１８ｆ２と連通する導入口１４ｆ２が形成されている。また、これらは、シール部材２４により、液密に連通されている。さらに、取り付け部１４ａの導出口１４ｆ１と導入口１４ｆ２は、リブ１４ｅ内に形成された油路１４ｇ１、１４ｇ２を介して変速機構ケース１２内に通じている。   Furthermore, as shown in FIG. 4, the seating surface 14 b of the attachment portion 14 a communicates with the outlet 14 f 1 that communicates with the hydraulic oil inlet 18 f 1 of the heat exchanger 18 and the outlet 18 f 2 of the heat exchanger 18. An introduction port 14f2 is formed. Further, these are in fluid-tight communication with a seal member 24. Further, the outlet 14f1 and the inlet 14f2 of the attachment portion 14a communicate with the transmission mechanism case 12 through oil passages 14g1 and 14g2 formed in the rib 14e.

具体的には、油路１４ｇ１、１４ｇ２は、図２に示すように、コンバータケース１４の変速機構ケース１２との合わせ面１４ｈ上に開口１４ｊ１、１４ｊ２を備え、これらの開口１４ｊ１、１４ｊ２は、変速機構ケース１２の合わせ面（合わせ面１４ｈと対接する合わせ面）上に形成されて変速機構ケース内の所定箇所に通じる開口と連通する。これにより、熱交換器１８の導出口１８ｆ１から導出した作動油が、リブ１４ｅ内の油路１４ｇ１を流れて開口１４ｊ１を介して変速機構ケース１２内に供給される。一方、変速機構ケース１２からの作動油は、開口１４ｊ２を介して油路１４ｇ２に流入し、導入口１８ｆ２から熱交換器１８内に導入される。このように、リブ１４ｅ内に熱交換器１８と変速機構ケース１２内とを接続する油路１４ｇ１、１４ｇ２が形成されるため、取り付け部１４ａの剛性が高く維持される。すなわち、棚状の取り付け部１４ａ内に油路を形成することによる該取り付け部１４ａの剛性の低下が抑制される。   Specifically, as shown in FIG. 2, the oil passages 14g1 and 14g2 include openings 14j1 and 14j2 on a mating surface 14h of the converter case 14 with the transmission mechanism case 12, and these openings 14j1 and 14j2 It is formed on a mating surface of the mechanism case 12 (a mating surface in contact with the mating surface 14h) and communicates with an opening that leads to a predetermined location in the speed change mechanism case. As a result, the hydraulic oil derived from the outlet 18f1 of the heat exchanger 18 flows through the oil passage 14g1 in the rib 14e and is supplied into the transmission mechanism case 12 through the opening 14j1. On the other hand, the hydraulic oil from the transmission mechanism case 12 flows into the oil passage 14g2 through the opening 14j2, and is introduced into the heat exchanger 18 through the introduction port 18f2. Thus, since the oil passages 14g1 and 14g2 connecting the heat exchanger 18 and the transmission mechanism case 12 are formed in the rib 14e, the rigidity of the mounting portion 14a is maintained high. That is, a decrease in rigidity of the attachment portion 14a due to the formation of an oil passage in the shelf-like attachment portion 14a is suppressed.

加えて、取り付け部１４の突出端部には、熱交換器１８を外側から保護する保護部１４ｋが設けられている。具体的には、保護部１４ｋは、図３（Ｂ）に示すように、２つの欠肉部１４ｄ１と１４ｄ２の間の取り付け部１４ａの部分の先端部から、図２に示すように、下方向に熱交換器１８の収納部１８ｃの外面に沿って突出する壁で構成されている。これにより、熱交換器１８を取り付けた後の変速機１０を搬送するときなどに、熱交換器１８が外側からの接触に対して保護される。   In addition, a protection portion 14k that protects the heat exchanger 18 from the outside is provided at the protruding end portion of the attachment portion 14. Specifically, as shown in FIG. 3 (B), the protection part 14k is moved downward from the tip of the attachment part 14a between the two lacking parts 14d1 and 14d2, as shown in FIG. Further, it is constituted by a wall protruding along the outer surface of the storage portion 18c of the heat exchanger 18. Thereby, when conveying the transmission 10 after attaching the heat exchanger 18, the heat exchanger 18 is protected against contact from the outside.

本実施形態によれば、熱交換器１８は、図１や図２に示すように、熱媒体を内部に導入する導入部１８ｅ１と、熱媒体を外部に導出する導出部１８ｅ２とを、取り付け時にコンバータケース１４の取り付け部１４ａの座面１４ｂと対接する合わせ面１８ａに備え、座面１４ｂと対接することにより、該合わせ面１８ａは剛性が高くなる。そのため、この合わせ面１８ａを備えるブラケット部１８ｂ自体を高剛性にする必要がなくなる。その結果、熱交換器１８は、その重量が軽くなり、製造コストが低く抑えられる。   According to the present embodiment, as shown in FIG. 1 and FIG. 2, the heat exchanger 18 includes an introduction part 18e1 that introduces a heat medium and a lead part 18e2 that leads the heat medium to the outside. The mating surface 18a is provided with a mating surface 18a that contacts the seating surface 14b of the mounting portion 14a of the converter case 14, and the mating surface 18a has high rigidity by contacting the seating surface 14b. Therefore, it is not necessary to make the bracket portion 18b itself provided with the mating surface 18a highly rigid. As a result, the heat exchanger 18 is light in weight and can be manufactured at a low cost.

また、熱交換器１８の合わせ面１８ａは、作動油を内部に導入する導入口１８ｆ１と、作動油を外部に導出する導出口１８ｆ２とを備える。そして、コンバータケース１４の取り付け部１４ａの座面１４ｂは、図４に示すように、これら合わせ面１８ａにおける導入口１８ｆ１および導出口１８ｆ２とそれぞれ連通する導出口１４ｆ１および導入口１４ｆ２を備える。コンバータケース１４の座面１４ｂと対接することにより剛性が高まる合わせ面１８ａに、すなわち熱媒体の導入部１８ｅ１と導出部１８ｅ２とを備える合わせ面１８ａに作動油の導入口１８ｆ１および導出口１８ｆ２が設けられるので、別途、これらの作動油の導入口１８ｆ１および導入口１８ｆ２を備える剛性が高い部分を熱交換器１８に設ける必要がなくなる。   Further, the mating surface 18a of the heat exchanger 18 includes an introduction port 18f1 for introducing hydraulic oil into the interior and a lead-out port 18f2 for extracting hydraulic fluid to the outside. Then, as shown in FIG. 4, the seating surface 14b of the attachment portion 14a of the converter case 14 includes a lead-out port 14f1 and a lead-in port 14f2 that communicate with the lead-in port 18f1 and the lead-out port 18f2 in the mating surface 18a, respectively. The hydraulic oil inlet 18f1 and outlet 18f2 are provided on the mating surface 18a, which is increased in rigidity by being in contact with the seating surface 14b of the converter case 14, that is, on the mating surface 18a including the introduction portion 18e1 and the outlet portion 18e2. Therefore, it is not necessary to separately provide the heat exchanger 18 with a highly rigid portion including the inlet port 18f1 and the inlet port 18f2 for the hydraulic oil.

以上、一実施形態を挙げて本発明を説明したが、本発明はこれに限定されない。 While the present invention has been described with reference to one embodiment, the present invention is not limited to this.

上述の実施形態の場合、熱交換器１８は、コンバータケース１４に取り付けられ、変速機構ケース１２内の変速機構に熱交換後の作動油を供給するが、本発明はこれに限らない。   In the case of the above-described embodiment, the heat exchanger 18 is attached to the converter case 14 and supplies the hydraulic oil after heat exchange to the transmission mechanism in the transmission mechanism case 12, but the present invention is not limited to this.

例えば、図５に概略的に示すように、変速機構以外に、カウンタドライブ機構や作動装置を収納し、その外面に熱交換器が取り付けられる変速機ケースを有する変速機であってもよい。図において、「１軸」は、変速機構の入力軸およびその周辺の構成要素を示し、「２軸」はカウンタドライブ機構のカウンタシャフトおよびその周辺の構成要素、「３軸」は差動装置のドライブシャフトおよびその周辺の構成要素を示している。また、矢印は、作動油の流れを示している。   For example, as schematically shown in FIG. 5, a transmission having a transmission case in which a counter drive mechanism and an operating device are housed in addition to the transmission mechanism and a heat exchanger is attached to the outer surface thereof may be used. In the figure, “1 axis” indicates the input shaft of the speed change mechanism and its peripheral components, “2 axis” indicates the counter shaft of the counter drive mechanism and its peripheral components, and “3 axis” indicates the differential device. The drive shaft and its surrounding components are shown. Moreover, the arrow has shown the flow of hydraulic oil.

例えば図５（Ａ）の場合、熱交換器は、変速機ケースの上面に取り付けられ、バルブボディからの作動油を熱媒体との間で熱交換し、熱交換後の作動油を１軸と２軸とに供給する。また、図５（Ｂ）の場合、熱交換器は、変速機ケースの側面に取り付けられ、バルブボディからの作動油を熱媒体との間で熱交換し、熱交換後の作動油を１軸、２軸、および３軸に供給する。   For example, in the case of FIG. 5A, the heat exchanger is attached to the upper surface of the transmission case, exchanging the hydraulic oil from the valve body with the heat medium, and the hydraulic oil after the heat exchange as one axis. Supply to 2 shafts. Further, in the case of FIG. 5B, the heat exchanger is attached to the side surface of the transmission case, exchanging the hydraulic oil from the valve body with the heat medium, and the hydraulic oil after the heat exchange is uniaxial. Supply to 2 axis and 3 axis.

以上のように、本発明は、高剛性が必要な熱交換性能と関わらない部分を少なくして軽量化するとともに製造コストを低く抑制することができる構造の熱交換器を有する変速機を提供することができる。したがって、自動車用変速機の分野において好適に利用される可能性がある。   As described above, the present invention provides a transmission having a heat exchanger having a structure capable of reducing the weight and reducing the manufacturing cost while reducing the portion not related to the heat exchange performance requiring high rigidity. be able to. Therefore, it may be suitably used in the field of automobile transmissions.

本発明の一実施形態に係る変速機の外観図である。1 is an external view of a transmission according to an embodiment of the present invention. 図１のＸ方向に見た熱交換器とその周辺を示す図である。It is a figure which shows the heat exchanger and its periphery seen in the X direction of FIG. 図２のＹ方向に見た、非取り付け状態および取り付け状態の熱交換器を示す図である。It is a figure which shows the heat exchanger of a non-attachment state and an attachment state seen in the Y direction of FIG. 図３のＺ方向に見た熱交換器およびその周辺の部分断面図である。FIG. 4 is a partial cross-sectional view of the heat exchanger and its periphery as viewed in the Z direction in FIG. 3. 他の実施形態の変速機を概略的に示す図である。It is a figure which shows schematically the transmission of other embodiment.

符号の説明Explanation of symbols

１４ 変速機ケース（コンバータケース）
１４ｂ 座面
１８ 熱交換器
１８ａ 合わせ面
１８ｅ２ 熱媒体導出部 14 Transmission case (converter case)
14b Seat surface 18 Heat exchanger 18a Mating surface 18e2 Heat medium outlet

Claims (7)

変速機内の所定箇所に供給される作動油と外部から供給される熱媒体との間で熱交換する熱交換器と、該熱交換器を取り付ける座面が外面に設けられた変速機ケースとを有する変速機であって、
前記熱交換器は、取り付け時に前記座面と対接する合わせ面を有し、該合わせ面に、熱媒体を内部に導入する導入部と、熱媒体を外部に導出する導出部とを備えていることを特徴とする変速機。 A heat exchanger for exchanging heat between hydraulic oil supplied to a predetermined location in the transmission and a heat medium supplied from the outside, and a transmission case provided with a seating surface to which the heat exchanger is attached on the outer surface A transmission having
The heat exchanger has a mating surface that comes into contact with the seating surface at the time of mounting, and includes an introduction unit that introduces the heat medium into the mating surface and a lead-out unit that leads the heat medium to the outside. A transmission characterized by that. 請求項１に記載の変速機において、
前記熱交換器の合わせ面は、作動油を該熱交換器の内部に導入する導入口と、作動油を該熱交換器から外部に導出する導出口とを備えているとともに、
前記変速機ケースの座面は、前記合わせ面における導入口および導出口とそれぞれ連通する作動油の導出口および導入口を備え、
前記合わせ面と座面との間に、合わせ面の導入口および導出口と座面の導出口および導入口との各連通部をそれぞれシールするシール手段が設けられていることを特徴とする変速機。 The transmission according to claim 1, wherein
The mating surface of the heat exchanger includes an introduction port for introducing hydraulic oil into the heat exchanger, and a lead-out port for extracting the hydraulic oil from the heat exchanger to the outside.
The seat surface of the transmission case includes an outlet and an inlet for hydraulic oil communicating with the inlet and the outlet on the mating surface, respectively.
A shift means is provided between the mating surface and the seating surface, and sealing means for sealing each communicating portion of the mating surface introducing port and outlet port and the seating surface outlet port and inlet port. Machine. 請求項１または２に記載の変速機において、
前記熱交換器の熱媒体導入部および導出部は、前記合わせ面から突出してホースと連結されるパイプ状部材で構成され、
前記座面を備える変速機ケースの熱交換器取り付け部は、前記パイプ状部材を通過させる欠肉部を備えることを特徴とする変速機。 The transmission according to claim 1 or 2,
The heat medium introduction part and the lead-out part of the heat exchanger are configured by a pipe-like member that protrudes from the mating surface and is connected to a hose,
The transmission according to claim 1, wherein the heat exchanger mounting portion of the transmission case including the seating surface includes a hollow portion that allows the pipe-shaped member to pass therethrough. 請求項２または３に記載の変速機において、
前記合わせ面上において前記作動油の導入口と導出口とを結ぶ直線に対して前記熱媒体導入部と導出部とを結ぶ直線が交差するように、前記作動油の導入口および導出口と、前記熱媒体導入部および導出部とが前記合わせ面に配置されていることを特徴とする変速機。 The transmission according to claim 2 or 3,
The inlet and outlet of the hydraulic oil so that the straight line connecting the inlet and outlet of the hydraulic oil intersects with the straight line connecting the inlet and outlet of the hydraulic oil on the mating surface; The transmission characterized in that the heat medium introduction section and the lead-out section are arranged on the mating surface. 請求項１から４のいずれか１項に記載の変速機において、
前記変速機ケースは、エンジンと結合される端部が反対側の端部に比べて大径の発進装置収納部を有し、
前記熱交換器は、前記発進装置収納部における小径の反エンジン側の端部寄りに取り付けられることを特徴とする変速機。 The transmission according to any one of claims 1 to 4,
The transmission case has a starting device storage portion whose end connected to the engine has a larger diameter than the opposite end.
The transmission according to claim 1, wherein the heat exchanger is attached to an end of the starting device storage portion near a small diameter non-engine side. 請求項１から５のいずれか１項に記載の変速機において、
前記変速機ケースの熱交換器取り付け部は、ケース外面から外方に突出して形成され、その突出端部に熱交換器を外側から保護する保護部が設けられていることを特徴とする変速機。 The transmission according to any one of claims 1 to 5,
The heat exchanger mounting portion of the transmission case is formed to protrude outward from the outer surface of the case, and a protective portion for protecting the heat exchanger from the outside is provided at the protruding end portion. . 請求項１から６のいずれか１項に記載の変速機において、
前記変速機ケースの熱交換器取り付け部は、ケース外面から外方に突出する棚状に形成され、その下面に前記座面を備えるとともに、
該取付け部の上面とケース外面との間にリブが設けられ、
その作動油の導入口および導出口は、それぞれ前記リブ内に形成された油路を介して前記変速機ケース内に通じていることを特徴とする変速機。 The transmission according to any one of claims 1 to 6,
The heat exchanger mounting portion of the transmission case is formed in a shelf shape protruding outward from the outer surface of the case, and includes the seating surface on the lower surface thereof,
A rib is provided between the upper surface of the mounting portion and the outer surface of the case;
The hydraulic oil introduction port and the lead-out port communicate with the transmission case through oil passages formed in the rib, respectively.
JP2008195661A 2008-07-30 2008-07-30 transmission Expired - Fee Related JP5277773B2 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3023673A1 (en) * 2014-11-24 2016-05-25 Siemens Aktiengesellschaft Drive train and adapter device
EP3382235A1 (en) * 2017-03-31 2018-10-03 HS Marston Aerospace Limited Component with heat exchanger
CN112654804A (en) * 2018-10-26 2021-04-13 加特可株式会社 Housing component of power transmission device

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06272751A (en) * 1993-03-19 1994-09-27 Calsonic Corp Oil cooler for automatic transmission
JP2003106418A (en) * 2001-09-28 2003-04-09 Jatco Ltd Automatic transmission
JP2004183671A (en) * 2002-11-29 2004-07-02 Aisin Aw Co Ltd Automatic transmission
JP2008002305A (en) * 2006-06-21 2008-01-10 Mazda Motor Corp Engine oil cooling system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06272751A (en) * 1993-03-19 1994-09-27 Calsonic Corp Oil cooler for automatic transmission
JP2003106418A (en) * 2001-09-28 2003-04-09 Jatco Ltd Automatic transmission
JP2004183671A (en) * 2002-11-29 2004-07-02 Aisin Aw Co Ltd Automatic transmission
JP2008002305A (en) * 2006-06-21 2008-01-10 Mazda Motor Corp Engine oil cooling system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3023673A1 (en) * 2014-11-24 2016-05-25 Siemens Aktiengesellschaft Drive train and adapter device
CN105620279A (en) * 2014-11-24 2016-06-01 西门子公司 Drive train and adapter device
EP3382235A1 (en) * 2017-03-31 2018-10-03 HS Marston Aerospace Limited Component with heat exchanger
US10883775B2 (en) 2017-03-31 2021-01-05 Hs Marston Aerospace Limited Component with heat exchanger
CN112654804A (en) * 2018-10-26 2021-04-13 加特可株式会社 Housing component of power transmission device

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