JPH036331B2 - - Google Patents

Info

Publication number
JPH036331B2
JPH036331B2 JP6878883A JP6878883A JPH036331B2 JP H036331 B2 JPH036331 B2 JP H036331B2 JP 6878883 A JP6878883 A JP 6878883A JP 6878883 A JP6878883 A JP 6878883A JP H036331 B2 JPH036331 B2 JP H036331B2
Authority
JP
Japan
Prior art keywords
camshaft
bank
engine
head cover
crankshaft
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
Application number
JP6878883A
Other languages
Japanese (ja)
Other versions
JPS59194036A (en
Inventor
Masahiro Choshi
Tetsuji Yahiro
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mazda Motor Corp
Original Assignee
Mazda Motor Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mazda Motor Corp filed Critical Mazda Motor Corp
Priority to JP6878883A priority Critical patent/JPS59194036A/en
Priority to US06/601,729 priority patent/US4516546A/en
Publication of JPS59194036A publication Critical patent/JPS59194036A/en
Publication of JPH036331B2 publication Critical patent/JPH036331B2/ja
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/02—Valve drive
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F02B75/22—Multi-cylinder engines with cylinders in V, fan, or star arrangement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/02—Valve drive
    • F01L1/024—Belt drive
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/02—Valve drive
    • F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
    • F01L1/047—Camshafts
    • F01L1/053—Camshafts overhead type
    • F01L2001/0535—Single overhead camshafts [SOHC]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F02B2075/1804—Number of cylinders
    • F02B2075/1824—Number of cylinders six
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B2275/00—Other engines, components or details, not provided for in other groups of this subclass
    • F02B2275/06—Endless member is a belt
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B2275/00—Other engines, components or details, not provided for in other groups of this subclass
    • F02B2275/20—SOHC [Single overhead camshaft]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F7/00—Casings, e.g. crankcases
    • F02F7/006—Camshaft or pushrod housings

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)

Description

【発明の詳細な説明】 （産業上の利用分野） 本発明は、カムシヤフトがシリンダヘツドに設
けられたオーバーヘツドカムシヤフト（OHC）
方式のＶ型エンジンに関する。Detailed Description of the Invention (Industrial Application Field) The present invention relates to an overhead camshaft (OHC) in which a camshaft is provided in a cylinder head.
This invention relates to a V-type engine.

（従来技術） 従来、Ｖ型エンジンにおいて、特開昭55−
114845号公報に示されるように、一方のバンクを
他方のバンクに対してクランクシヤフトの軸方向
にずらせることにより、前記一方のバンクの前方
と他方のバンクの後方とに空間部をそれぞれ形成
し、この両空間部にクランクシヤフトで駆動され
るエンジン補機を振り分けて配設することによ
り、エンジンの全体形状を小さくすることは知ら
れている。(Prior art) Conventionally, in V-type engines,
As shown in Publication No. 114845, by shifting one bank with respect to the other bank in the axial direction of the crankshaft, a space is formed in front of the one bank and at the rear of the other bank. It is known that the overall shape of the engine can be reduced by distributing and arranging engine accessories driven by a crankshaft in both spaces.

ところが、このような構造のＶ型エンジンはオ
ーバーヘツドバルブ方式であるので、OHC方式
のものに適用する場合、デイストリビユータ等の
エンジン補機に取付孔を設けてやる必要があり、
そのまま適用することができないという不具合が
ある。 However, since the V-type engine with this structure is an overhead valve type, when applying it to an OHC type engine, it is necessary to provide a mounting hole for engine auxiliary equipment such as a distributor.
There is a problem that it cannot be applied as is.

（発明の目的） 本発明は、小型化を図つたままエンジン補機の
取付けが可能であるOHC方式のＶ型エンジンを
提供することを目的とする。(Objective of the Invention) An object of the present invention is to provide an OHC type V-type engine that allows engine auxiliary equipment to be attached while reducing the size of the engine.

また、本発明は、ヘツドカバーを共通化するこ
とにより、部品点数の低減およびコストダウンが
図られたＶ型エンジンを提供することも目的とす
る。 Another object of the present invention is to provide a V-type engine in which the number of parts and costs are reduced by using a common head cover.

（発明の構成） 本発明は、第１および第２バンクのシリンダヘ
ツドにカムシヤフトをそれぞれ設け、該各カムシ
ヤフトをクランクシヤフトにそれらの端部におい
て同時回転可能に連係するとともに、第１バンク
のシリンダを第２バンクのシリンダよりも前記端
部から離隔するようにクランクシヤフトの軸方向
にずらせて配置したOHC方式のＶ型エンジンの
改良に関するものである。(Structure of the Invention) The present invention provides a camshaft in each of the cylinder heads of the first and second banks, and connects each of the camshafts to the crankshaft so that they can rotate simultaneously at their ends, and also connects the cylinders of the first bank to the crankshaft so that they can rotate simultaneously. This invention relates to an improvement of an OHC type V-type engine in which the cylinders of the second bank are arranged to be shifted in the axial direction of the crankshaft so as to be farther from the end.

本発明は、前記目的を達成するために、上記Ｖ
型エンジンにおいて、第１および第２バンクのシ
リンダヘツドに第１および第２ヘツドカバーがそ
れぞれ設けられ、第１ヘツドカバーにおけるカム
シヤフトの前記端部に近い部分および第２ヘツド
カバーにおけるカムシヤフトの前記端部とは反対
側の端部に近い部分にそれぞれ開孔が設けられ、
それによつて第１および第２ヘツドカバーが共通
化され、前記開孔の一方をエンジン補機取付部、
他方をオイル注油部とし、さらにオイル注油部に
キヤツプが着脱可能に取付けられていることを特
徴とするものである。すなわち、同一構成のヘツ
ドカバーにおける開孔を、一方のバンクにおいて
はエンジン補機取付部として、他方のバンクにお
いてはオイル注油部として利用することで、ヘツ
ドカバーの共通化を図つたものである。 In order to achieve the above object, the present invention provides the above V.
type engine, the cylinder heads of the first and second banks are provided with first and second head covers, respectively, a portion of the first head cover near the end of the camshaft and a portion of the second head cover opposite to the end of the camshaft. Each side has an opening near the end,
As a result, the first and second head covers are made common, and one of the openings is connected to the engine accessory mounting part.
The other is an oil filling part, and a cap is detachably attached to the oil filling part. That is, the openings in the head covers of the same configuration are used as engine auxiliary equipment mounting parts in one bank and as oil filling parts in the other bank, thereby making the head covers common.

エンジン補機は、デイストリビユータ、燃料ポ
ンプ、インジエクシヨンポンプ（デイーゼルエン
ジン）など、カムシヤフトにより駆動されるもの
である。 Engine auxiliary equipment is driven by a camshaft, such as a distributor, a fuel pump, and an injection pump (diesel engine).

（実施例） 以下、本発明の実施例を図面に基づいて説明す
る。(Example) Hereinafter, an example of the present invention will be described based on the drawings.

第１図ないし第４図に示すOHC方式のＶ型エ
ンジン１は、Ｖ字状に左右に配設されたバンク
２，３を有し、しかしてそのシリンダブロツク４
の下面にオイルパン５が取付けられている。この
オイルパン５とシリンダブロツク４下部とで構成
されたクランクケース６にクランクシヤフト７が
設けられている。 The OHC type V-type engine 1 shown in FIGS. 1 to 4 has banks 2 and 3 arranged on the left and right in a V shape, and the cylinder block 4
An oil pan 5 is attached to the lower surface of. A crankshaft 7 is provided in a crankcase 6 made up of the oil pan 5 and the lower part of the cylinder block 4.

第１および第２バンク２，３の、シリンダブロ
ツク４上面に気密接合されたシリンダヘツド８，
９にはカムシヤフト１０，１１がそれぞれ設けら
れ、該カムシヤフト１０，１１がクランクシヤフ
ト７にそれらの端部で連係され、それによつて、
カムシヤフト１０，１１とクランクシヤフト７と
が同時回転可能となつている。すなわち、カムシ
ヤフト１０，１１の端部に固定されているタイミ
ングプーリ１２，１３と、クランクシヤフト７の
端部に固定されているクランクプーリ１４とにタ
イミングベルト１５が巻き掛けられている。１
６，１７，１８はアイドラである。 Cylinder heads 8 of the first and second banks 2, 3 are hermetically sealed to the upper surface of the cylinder block 4,
9 is provided with a camshaft 10, 11, respectively, which is connected to the crankshaft 7 at their ends, thereby
The camshafts 10, 11 and the crankshaft 7 can rotate simultaneously. That is, a timing belt 15 is wound around timing pulleys 12 and 13 fixed to the ends of the camshafts 10 and 11 and a crank pulley 14 fixed to the end of the crankshaft 7. 1
6, 17, and 18 are idlers.

シリンダブロツク４内において、第１バンク２
には偶数番目のシリンダ，，が、第２バン
ク３には奇数番目のシリンダ，，がそれぞ
れ形成され、しかして第１バンク２のシリンダ
，，は、第２バンク３のシリンダ，，
よりも前記端部より離隔するようにクランクシ
ヤフト７の軸方向にずれるように配置されてい
る。 In the cylinder block 4, the first bank 2
The even numbered cylinders, , are formed in the second bank 3, and the odd numbered cylinders, , are formed in the second bank 3, so that the cylinders of the first bank 2, , are formed as the cylinders of the second bank 3, , .
It is arranged so as to be shifted in the axial direction of the crankshaft 7 so as to be further away from the end portion.

第１および第２バンク２，３のシリンダヘツド
８，９の上面には、第１および第２ヘツドカバー
１９，２０が設けられている。第１および第２ヘ
ツドカバー１９，２０は共通化された部材で、第
２図より明らかなように互いに他方に対して180゜
回転された状態で配置されて取付けられている。
すなわち、２つのヘツドカバー１９，２０は、平
面図でみて、エンジン中心に対して点対称になつ
ている。 First and second head covers 19 and 20 are provided on the upper surfaces of the cylinder heads 8 and 9 of the first and second banks 2 and 3, respectively. The first and second head covers 19 and 20 are common members, and as is clear from FIG. 2, they are mounted so that they are rotated 180 degrees relative to the other.
That is, the two head covers 19 and 20 are point symmetrical with respect to the center of the engine when viewed in plan view.

第１および第２ヘツドカバー１９，２０には開
孔１９ａ，２０ａがそれぞれ形成され、しかして
第１ヘツドカバー１９の開孔１９ａは、前部すな
わちカムシヤフト１０の前記端部１０ａに近い部
分に、第２ヘツドカバー２０の開孔２０ａは、後
部すなわちカムシヤフト１１の前記端部１１ａと
は反対側の端部１１ｂに近い部分にそれぞれ位置
している。 Apertures 19a and 20a are formed in the first and second head covers 19 and 20, respectively, and the aperture 19a of the first head cover 19 is located in the front portion, that is, in a portion close to the end portion 10a of the camshaft 10, and a second The openings 20a of the head cover 20 are located at the rear portion, that is, near the end 11b of the camshaft 11 opposite to the end 11a.

第１ヘツドカバー１９には、第３図に示すよう
に、その開孔１９ａに筒状部材２１が突出して固
定されてオイル注油部Ａが形成されている。この
オイル注油部Ａは、筒状部材２１の開口端に着脱
可能に螺合されたキヤツプ２２を取外すことによ
り、開放されるようになつている。 As shown in FIG. 3, the first head cover 19 has a cylindrical member 21 protruding from and fixed to an opening 19a thereof to form an oil filling portion A. The oil filling section A is opened by removing a cap 22 that is removably screwed onto the open end of the cylindrical member 21.

一方、第２ヘツドカバー２０には、第４図に示
すように、その開孔２０ａを通じて、デイストリ
ビユータ２３（エンジン補機）が取付けられて、
エンジン補機取付部Ｂが形成されている。すなわ
ち、このエンジン補機取付部Ｂは、デイストリビ
ユータ２３の駆動軸２３ａの下端部にウオームホ
イール２４が固着され、このウオームホイール２
４が、カムシヤフト１１に固設したウオームギヤ
２５と噛合し、それによつてカムシヤフト１１の
回転駆動力でデイストリビユータ２３が駆動され
るようになつている。 On the other hand, as shown in FIG. 4, a distributor 23 (engine accessory) is attached to the second head cover 20 through its opening 20a.
An engine accessory mounting portion B is formed. That is, in this engine accessory mounting part B, a worm wheel 24 is fixed to the lower end of the drive shaft 23a of the distributor 23, and the worm wheel 24 is fixed to the lower end of the drive shaft 23a of the distributor 23.
4 meshes with a worm gear 25 fixed to the camshaft 11, whereby the distributor 23 is driven by the rotational driving force of the camshaft 11.

このように、OHC方式のＶ型エンジンにおい
て必然的に生ずる第１バンク２におけるシリンダ
の前方および第２バンク３におけるシリンダ
の後方の剰余スペースを有効に利用して、オイル
注油部Ａおよびエンジン補機取付部Ｂを配置して
いるので、エンジン１の全長を伸ばすことなく、
小型化を図つたままで、前記両部Ａ，Ｂを形成す
ることができ、また、前記両部Ａ，Ｂの位置関係
から、ヘツドカバー１９，２０を共通化すること
もできる。 In this way, by effectively utilizing the surplus space in front of the cylinders in the first bank 2 and behind the cylinders in the second bank 3, which inevitably occur in an OHC type V-type engine, the oil filling section A and the engine auxiliary equipment are Since the mounting part B is located, there is no need to extend the overall length of the engine 1.
Both parts A and B can be formed while maintaining the size reduction, and the head covers 19 and 20 can also be made common due to the positional relationship between the parts A and B.

さらに、上記Ａ，Ｂ部は、各バンクの剰余スペ
ースであるため注油部下方のシリンダブロツク４
にオイルパン５へ連通する大きなオイルリターン
を形成することができ、注油を速やかに行うこと
が可能となる。 Furthermore, since the above A and B sections are surplus spaces of each bank, the cylinder block 4 below the lubrication
A large oil return communicating with the oil pan 5 can be formed at the same time, making it possible to quickly lubricate the oil.

なお、本発明は、６気筒以外のOHC方式の多
気筒Ｖ型エンジンにも適用することができるのは
言うまでもない。 It goes without saying that the present invention can also be applied to OHC multi-cylinder V-type engines other than six cylinders.

（発明の効果） 本発明は上記のように構成したから、OHC方
式のＶ型エンジンにおいて、小型化を図つたま
ま、ヘツドカバーにエンジン補機取付部およびオ
イル注油部を形成することができ、また、ヘツド
カバーの共通化を行うことができるので、部品点
数の低減およびコストダウンを図ることができ
る。(Effects of the Invention) Since the present invention is configured as described above, it is possible to form an engine auxiliary equipment mounting part and an oil lubrication part in the head cover while maintaining the size of the OHC type V-type engine. Since the head cover can be shared, the number of parts and costs can be reduced.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明に係るＶ型エンジンの概略正面
図、第２図は同概略平面図、第３図および第４図
はそれぞれ同概略一部断面図である。 １……Ｖ型エンジン、２……第１バンク、３…
…第２バンク、４……シリンダブロツク、７……
クランクシヤフト、８，９……シリンダヘツド、
１０，１１……カムシヤフト、１９……第１ヘツ
ドカバー、２０……第２ヘツドカバー、Ａ……オ
イル注油部、Ｂ……エンジン補機取付部。 FIG. 1 is a schematic front view of a V-type engine according to the present invention, FIG. 2 is a schematic plan view thereof, and FIGS. 3 and 4 are schematic partial sectional views thereof. 1... V-type engine, 2... 1st bank, 3...
...Second bank, 4...Cylinder block, 7...
Crankshaft, 8, 9... cylinder head,
DESCRIPTION OF SYMBOLS 10, 11...Camshaft, 19...First head cover, 20...Second head cover, A...Oil lubrication part, B...Engine auxiliary equipment mounting part.

Claims (1)

【特許請求の範囲】[Claims] １ 第１および第２バンクのシリンダヘツドにカ
ムシヤフトをそれぞれ設け、該各カムシヤフトを
クランクシヤフトにそれらの端部において同時回
転可能に連係するとともに、第１バンクのシリン
ダを第２バンクのシリンダよりも前記端部から離
隔するようにクランクシヤフトの軸方向にずらせ
て配置したＶ型エンジンにおいて、前記第１およ
び第２バンクのシリンダヘツドに第１および第２
ヘツドカバーがそれぞれ設けられ、第１ヘツドカ
バーにおけるカムシヤフトの前記端部に近い部分
および第２ヘツドカバーにおけるカムシヤフトの
前記端部とは反対側の端部に近い部分であつて第
１ヘツドカバーと対称な位置にそれぞれ開孔が設
けられ、前記開孔の一方をエンジン補機取付部、
他方をオイル注油とし、さらにオイル注油部にキ
ヤツプが着脱可能に取付けられていることを特徴
とするＶ型エンジン。1 Each of the cylinder heads of the first and second banks is provided with a camshaft, each camshaft is connected to the crankshaft for simultaneous rotation at their ends, and the cylinders of the first bank are arranged further above the cylinders of the second bank. In a V-type engine that is arranged offset in the axial direction of the crankshaft so as to be spaced from the end, first and second cylinder heads are arranged in the cylinder heads of the first and second banks.
Head covers are provided, respectively, at a portion of the first head cover near the end of the camshaft and a portion of the second head cover near the end of the camshaft opposite to the end and symmetrical to the first head cover. An opening is provided, and one of the openings is connected to an engine accessory mounting part,
A V-type engine characterized in that the other end is lubricated with oil, and a cap is removably attached to the oil lubricating part.
JP6878883A 1983-04-18 1983-04-18 V-type engine Granted JPS59194036A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP6878883A JPS59194036A (en) 1983-04-18 1983-04-18 V-type engine
US06/601,729 US4516546A (en) 1983-04-18 1984-04-18 V-Type overhead-camshaft engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6878883A JPS59194036A (en) 1983-04-18 1983-04-18 V-type engine

Publications (2)

Publication Number Publication Date
JPS59194036A JPS59194036A (en) 1984-11-02
JPH036331B2 true JPH036331B2 (en) 1991-01-29

Family

ID=13383807

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6878883A Granted JPS59194036A (en) 1983-04-18 1983-04-18 V-type engine

Country Status (1)

Country Link
JP (1) JPS59194036A (en)

Also Published As

Publication number Publication date
JPS59194036A (en) 1984-11-02

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