JPS61232305A - Camshaft driving structure for v-shaped dohc engine - Google Patents

Camshaft driving structure for v-shaped dohc engine

Info

Publication number
JPS61232305A
JPS61232305A JP7359985A JP7359985A JPS61232305A JP S61232305 A JPS61232305 A JP S61232305A JP 7359985 A JP7359985 A JP 7359985A JP 7359985 A JP7359985 A JP 7359985A JP S61232305 A JPS61232305 A JP S61232305A
Authority
JP
Japan
Prior art keywords
camshafts
crankshaft
camshaft
cylinder
gear
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.)
Granted
Application number
JP7359985A
Other languages
Japanese (ja)
Other versions
JP2534472B2 (en
Inventor
Toshihiko Takada
敏彦 高田
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.)
Yamaha Motor Co Ltd
Original Assignee
Yamaha Motor Co Ltd
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 Yamaha Motor Co Ltd filed Critical Yamaha Motor Co Ltd
Priority to JP60073599A priority Critical patent/JP2534472B2/en
Publication of JPS61232305A publication Critical patent/JPS61232305A/en
Application granted granted Critical
Publication of JP2534472B2 publication Critical patent/JP2534472B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • F01L1/022—Chain 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
    • 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
    • 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
    • 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
    • F02B2275/18—DOHC [Double overhead camshaft]

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)

Abstract

PURPOSE:To make a camshaft driving structure smaller and allow the joint use of right and left cylinders by laying out transmission devices for two camshafts at the top of the right and left cylinder heads to the blank side offset to the rows of cylinders on the other side. CONSTITUTION:Of the two camshafts 5a, 5b installed on each of the right and left cylinder heads 3, the camshaft 5a located on the inner side protrudes one end of its shaft in the forward direction for the cylinder head 3, and to this shaft end a gear 6 is fixed. And an endless belt 8 having gear teeth winds around and connects the gear 6 and a gear fitted to the end of a crankshaft protruding in the forward direction for the crankcase, thereby transmitting the motive power of the crankshaft. Meanwhile, the transmission devices of a sprocket 9 and a chain 10, which drive camshafts 5a, 5b are placed on the other side with each other at the two cylinder heads 3, and at the end of the blank side offset to the other cylinder rows 2a, 2b.

Description

【発明の詳細な説明】 〔発明の技術分野〕 本発明はＶ［Ｄ　ＯＨＣエンジンのカム軸駆動構造に関
するものである。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a camshaft drive structure for a V[D OHC engine.

〔従来技術〕[Prior art]

ＤＯＨＣ（ダブル・オーバヘッド・カム軸）式のエンジ
ンは、吸気弁と排気弁を駆動する２本のカム軸をシリン
ダヘッド上部に平行に配置したものであり、またＶ形エ
ンジンは、１本のクランク軸に対し、左右のシリンダを
クランク軸方向にオフセットさせてＶ形に配置したもの
である。A DOHC (double overhead camshaft) engine has two camshafts arranged parallel to each other above the cylinder head, which drive the intake and exhaust valves, and a V-type engine has one crankshaft. The left and right cylinders are offset in the direction of the crankshaft and arranged in a V-shape.

Ｖ形ＤＯＨＣエンジンは上記画形式を同時に備えたもの
であるが、従来のＶ形ＤＯＨＣエンジンでは、上述のよ
うな構造上の特殊性から、クランク軸の動力によってカ
ム軸を駆動する構造が大型になりやすく、かつそのよう
なカム軸駆動構造と左右のシリンダがクランク軸方向に
オフセットされていることによって、左右のシリンダヘ
ッドを互いに異なる形状にせざるを得なかった。このた
め、シリンダヘッド成形用の金型が２種類必要となり、
コスト高になっていた。A V-type DOHC engine is equipped with the above-mentioned image format at the same time, but in the conventional V-type DOHC engine, due to the special structure mentioned above, the structure in which the camshaft is driven by the power of the crankshaft is large. Due to the camshaft drive structure and the fact that the left and right cylinders are offset in the crankshaft direction, the left and right cylinder heads have had to have different shapes. For this reason, two types of molds for cylinder head molding are required.
The cost was getting high.

〔発明の目的〕[Purpose of the invention]

本発明の目的は、カム軸駆動構造のレイアウトを工夫す
ることにより全体的にコンパクトにし、しかも左右のシ
リンダヘッドを共用可能にするＶ形Ｄ　ＯＨＣエンジン
のカム軸駆動構造を提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to provide a camshaft drive structure for a V-shaped DOHC engine that can be made compact overall by devising the layout of the camshaft drive structure, and also allows the left and right cylinder heads to be shared.

〔発明の構成〕[Structure of the invention]

上記目的を達成する本発明は、１本のクランク軸に対し
、左右列状のシリンダをクランク軸方向にオフセットさ
せてＶ形に配置し、各シリンダ列に設けたシリンダヘッ
ド上部に、吸排気弁を駆動するカム軸を２本ずつ平行に
配置したＶ形ＤＯＨＣエンジンにおいて、前記２本ずつ
配置したカム軸のうちの一方の軸端を、前記クランク軸
の軸端に伝動手段を介して連動連結し、かつ２本ずつの
カム軸同士を、他側のシリンダ列に対しオフセットされ
た空白側の軸端部において伝動手段により連動連結した
ことを特徴とするものである。The present invention achieves the above object by arranging left and right rows of cylinders in a V shape offset in the direction of the crankshaft, and installing intake and exhaust valves in the upper part of the cylinder head provided in each cylinder row. In a V-type DOHC engine in which two camshafts are arranged in parallel to drive the engine, one shaft end of the two camshafts is interlocked and connected to the shaft end of the crankshaft via a transmission means. In addition, the two camshafts are interlocked and connected by a transmission means at the end of the shaft on the blank side that is offset from the cylinder row on the other side.

〔実施例〕〔Example〕

以下、本発明を図に示す実施例により説明する。 Hereinafter, the present invention will be explained with reference to embodiments shown in the drawings.

図は矢印Ｆ方向を前方側とする■形ＤＯＨＣエンジンで
あり、ｌａ、ｌｂは上下に分割構成されたクランクケー
ス、２はシリンダブロック、３．３はシリンダヘッドで
ある。クランクケースｌａ、ｌｂには、その台面におけ
る軸受部にクランク軸４が支持されている。シリンダブ
ロック２には、左右に３気筒ずつ列状に並んだシリンダ
２ａ、２ａ、２ａと２ｂ、２ｂ、２ｂがＶ形に配置され
ている。これら左右列状のシリンダ２ａ、２ａ、２ａと
２ｂ、２ｂ、２ｂとは、クランク軸方向にオフセットさ
れ、この実施例では右側のシリンダ列が左側のシリンダ
列に対し後方側にずれている。The figure shows a ■-shaped DOHC engine with the front side pointing in the direction of arrow F, where la and lb are crankcases that are divided into upper and lower parts, 2 is a cylinder block, and 3.3 is a cylinder head. A crankshaft 4 is supported by bearing portions on the table surfaces of the crankcases la and lb. In the cylinder block 2, cylinders 2a, 2a, 2a and 2b, 2b, 2b are arranged in a V-shape, with three cylinders arranged in a row on each side. These left and right rows of cylinders 2a, 2a, 2a, 2b, 2b, 2b are offset in the crankshaft direction, and in this embodiment, the right cylinder row is shifted rearward with respect to the left cylinder row.

左右のシリンダ２ａ、２ａ、２ａ；２ｂ、２ｂ、２ｂの
上部に、それぞれシリンダヘッド３゜３が設けられ、そ
の上部に吸気弁を駆動するカム軸５ａと排気弁を駆動す
るカム軸５ｂとが平行に設けられている。左右のシリン
ダヘッド３゜３上に２本ずつ設けたカム軸５ａ、５ｂ；
５ａ。A cylinder head 3°3 is provided at the top of each of the left and right cylinders 2a, 2a, 2a; 2b, 2b, 2b, and a camshaft 5a that drives an intake valve and a camshaft 5b that drives an exhaust valve are mounted on the top of the cylinder head 3. are placed in parallel. Two camshafts 5a and 5b are provided on the left and right cylinder heads 3°3;
5a.

５ｂのうち、内側に配置されたカム軸５ａ、５ａは、そ
の軸端がシリンダヘッド３．３の前方側へ突出し、歯車
６．６を固定している。この歯車６．６には、クランク
ケースｌａ、ｌｂの前方側へ突出させたクランク軸４の
軸端に固定した歯車７との間に、無端状の歯付ベルト８
が巻回され、クランク軸４の動力が伝達されるようにな
っている。上記歯車６の歯数は歯車７のそれの２倍にし
てあり、それによってカム軸５ａへはクランク軸４の部
分の−の回転の動力が伝達される。Among the camshafts 5b, the shaft ends of the camshafts 5a, 5a arranged on the inside protrude toward the front side of the cylinder head 3.3, and fix the gear 6.6. An endless toothed belt 8 is connected between this gear 6.6 and a gear 7 fixed to the shaft end of the crankshaft 4 that projects forward of the crankcases la and lb.
is wound so that the power of the crankshaft 4 is transmitted. The number of teeth of the gear 6 is twice that of the gear 7, so that the negative rotational power of the crankshaft 4 is transmitted to the camshaft 5a.

また、上記２本のカム軸５ａ、５ｂは、その軸端にスプ
ロケット９，９を固定し、その間に巻回したチェノ１０
を介して、カム軸５ａから５ｂへ動力伝達されるように
なっている。上記スプロケット９は、両カム軸５ａ、５
ｂを同一回転させるだけでよいため、上記歯車６のよう
に、歯車７の回転速度との関係で大きさく外径）を規制
されることがない。そのため、その外径は歯車６よりも
可及的に小径にすることができ、それによってクランク
軸４から入力する側のカム軸５ａ、５ｂ端部の部分を、
可及的にコンパクトにすることができる。Further, the two camshafts 5a, 5b have sprockets 9, 9 fixed to their shaft ends, and a chino 10 wound between them.
Power is transmitted from the camshaft 5a to the camshaft 5b via the camshaft 5a. The sprocket 9 has both camshafts 5a, 5
Since it is only necessary to rotate b at the same time, unlike the gear 6 described above, the outer diameter is not restricted in relation to the rotational speed of the gear 7. Therefore, its outer diameter can be made as small as possible than the gear 6, thereby making the end portions of the camshafts 5a and 5b on the input side from the crankshaft 4,
It can be made as compact as possible.

上記カム軸５ａ、５ｂ同士を駆動するスプロケット９，
９とチェノｌＯの伝動手段は、両シリンダヘッド３．３
において互いに反対側に配置され、かつ他方のシリンダ
列に対しオフセットされた空白部側の端部に配置されて
いる。すなわち、この実施例では、右側のシリンダヘッ
ド３のカム軸５ａ、５ｂの伝動手段は、前方側に形成さ
れるオフセット空白部に配置され、左側のシリンダヘッ
ド３のカム軸５ａ、５ｂの伝動手段は、後方側に形成さ
れるオフセット空白部に配置されている。このように互
いに反対側に位置するオフセット空白部を利用して伝動
手段を配置するため、シリンダヘッド３などの軸方向の
長さを短縮し、全体をコンパクトにしている。A sprocket 9 that drives the camshafts 5a and 5b,
The transmission means of 9 and Cheno 1O are both cylinder heads 3.3
The cylinder rows are arranged on opposite sides of each other, and are arranged at the ends on the blank side that are offset from the other cylinder row. That is, in this embodiment, the transmission means for the camshafts 5a, 5b of the right cylinder head 3 are arranged in the offset blank space formed on the front side, and the transmission means for the camshafts 5a, 5b of the left cylinder head 3 are arranged in the offset blank space formed on the front side. is arranged in an offset blank space formed on the rear side. In this way, since the transmission means is arranged using the offset blank portions located on opposite sides, the length of the cylinder head 3 and the like in the axial direction is shortened, thereby making the whole compact.

また、２本のカム軸５ａ、５ｂ同士の伝動手段が、左右
のシリンダヘッド３．３に対し互いに反対側の軸端に配
置されるため、左右シリンダヘッド３．３が、両者を挟
む中心における上下方向の軸に対し点対称な関係になる
。そのため、同一形状のシリンダヘッド３が左右に共用
可能になる。勿論、クランク軸４からの入力用に突出さ
せたカム軸５ａの軸孔部分が非対称部分として残るが、
この部分はゴムなどの盲栓によって埋めることで何等問
題となることはない。In addition, since the transmission means between the two camshafts 5a and 5b are arranged at shaft ends opposite to each other with respect to the left and right cylinder heads 3.3, the left and right cylinder heads 3.3 are located at the center between them. There is a point-symmetrical relationship with respect to the vertical axis. Therefore, the cylinder head 3 having the same shape can be used commonly for the left and right sides. Of course, the shaft hole portion of the camshaft 5a that protrudes for input from the crankshaft 4 remains as an asymmetrical portion;
This area can be filled with a blind plug made of rubber or the like without causing any problems.

なお、上記実施例では、クランク軸４からカム軸５ａへ
の無端伝動手段として歯付ベルト８を使用したが、これ
に代えてチェノなどを使用してもよい。また、カム軸５
ａ、５ｂ同士の伝達手段としてチェノを使用したが、こ
れに代えて歯付ベルトや歯車などを使用してもよい。In the above embodiment, the toothed belt 8 is used as the endless transmission means from the crankshaft 4 to the camshaft 5a, but a chain belt or the like may be used instead. Also, the camshaft 5
Although a chino was used as a means of transmission between a and 5b, a toothed belt, gears, etc. may be used instead.

〔発明の効果〕〔Effect of the invention〕

上述したように本発明は、１本のクランク軸４゜に対し
、左右列状のシリンダをクランク軸方向にオフセットさ
せてＶ形に配置し、各シリンダ列に設けたシリンダヘッ
ド上部に、吸排気弁を駆動するカム軸を２本ずつ平行に
配置した■形ＤＯＨＣエンジンにおいて、前記２本ずつ
配置したカム軸のうちの一方の軸端を、前記クランク軸
の軸端に伝動手段を介して連動連結し、かつ２本ずつの
カム軸同士を、他側のシリンダ列に対しオフセットされ
た空白側の軸端部において伝動手段により連動連結した
ものである。As described above, in the present invention, cylinders arranged in left and right rows are offset in the crankshaft direction with respect to one crankshaft at 4 degrees, and are arranged in a V shape, and intake and exhaust are arranged on the upper part of the cylinder head provided in each cylinder row. In a type DOHC engine in which two camshafts for driving valves are arranged in parallel, one shaft end of the two camshafts is linked to the shaft end of the crankshaft via a transmission means. The two camshafts are connected to each other by a transmission means at the end of the shaft on the blank side that is offset from the cylinder row on the other side.

このように左右のシリンダヘッド上部の２本ずつのカム
軸同士の伝動手段が、他側のシリンダ列に対しオフセッ
トされた空白側にレイアウトされているため、シリンダ
ヘッドなどの軸方向の長さを短縮して全体をコンパクト
にする。In this way, the transmission means between the two camshafts at the top of the left and right cylinder heads are laid out on the blank side offset from the cylinder row on the other side, so the axial length of the cylinder head etc. Shorten and make the whole thing more compact.

しかも、伝動手段は左右のシリンダヘッドに対し、両者
を挟む中心に点対称の配置になるため、左右のシリンダ
ヘッドは同一形状のものが共用可能になる。Furthermore, since the transmission means is arranged point-symmetrically with respect to the left and right cylinder heads with respect to the center between them, it is possible to use the same shape as the left and right cylinder heads.

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

第１図は本発明の実施例によるカム軸駆動構造を有する
Ｖ形ＤＯＨＣエンジンのシリンダヘッド上部を要部のみ
示す平面図、第２図は同エンジンの正面概略図である。 ２ａ、２ｂ−・シリンダ、　　３〜　シリンダヘッド、
　　４・−クランク軸、　　５ａ、５ｂ・−カム軸、６
．７−・歯車、　８−・歯付ベルト、　９−・−・スプ
ロケット、　　１０・・−チェノ。FIG. 1 is a plan view showing only the main part of the upper part of the cylinder head of a V-shaped DOHC engine having a camshaft drive structure according to an embodiment of the present invention, and FIG. 2 is a schematic front view of the engine. 2a, 2b- cylinder, 3- cylinder head,
4.-crankshaft, 5a, 5b.-camshaft, 6
．． 7--gear, 8--toothed belt, 9---sprocket, 10--cheno.

Claims (1)

【特許請求の範囲】[Claims] １本のクランク軸に対し、左右列状のシリンダをクラン
ク軸方向にオフセットさせてＶ形に配置し、各シリンダ
列に設けたシリンダヘッド上部に、吸排気弁を駆動する
カム軸を２本ずつ平行に配置したＶ形ＤＯＨＣエンジン
において、前記２本ずつ配置したカム軸のうちの一方の
軸端を、前記クランク軸の軸端に伝動手段を介して連動
連結し、かつ２本ずつのカム軸同士を、他側のシリンダ
列に対しオフセットされた空白側の軸端部において伝動
手段により連動連結したことを特徴とするＶ形ＤＯＨＣ
エンジンのカム軸駆動構造。The left and right rows of cylinders are offset in the direction of the crankshaft and arranged in a V-shape with respect to one crankshaft, and two camshafts that drive the intake and exhaust valves are installed above the cylinder head of each cylinder row. In a V-type DOHC engine arranged in parallel, one shaft end of the two camshafts arranged in parallel is interlocked and connected to the shaft end of the crankshaft via a transmission means, and A V-shaped DOHC characterized in that they are interlocked and connected by a transmission means at the shaft end on the blank side that is offset from the cylinder row on the other side.
Engine camshaft drive structure.
JP60073599A 1985-04-09 1985-04-09 Camshaft drive structure for V-type DOHC engine Expired - Fee Related JP2534472B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP60073599A JP2534472B2 (en) 1985-04-09 1985-04-09 Camshaft drive structure for V-type DOHC engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60073599A JP2534472B2 (en) 1985-04-09 1985-04-09 Camshaft drive structure for V-type DOHC engine

Publications (2)

Publication Number Publication Date
JPS61232305A true JPS61232305A (en) 1986-10-16
JP2534472B2 JP2534472B2 (en) 1996-09-18

Family

ID=13522945

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60073599A Expired - Fee Related JP2534472B2 (en) 1985-04-09 1985-04-09 Camshaft drive structure for V-type DOHC engine

Country Status (1)

Country Link
JP (1) JP2534472B2 (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4840149A (en) * 1987-07-07 1989-06-20 Toyota Jidosha Kabushiki Kaisha Camshaft apparatus for an internal combustion engine
DE3923984A1 (en) * 1988-07-20 1990-01-25 Mazda Motor VALVE DRIVE FOR A V-DESIGN INTERNAL COMBUSTION ENGINE WITH DOUBLE OVERHEAD CAMSHAFT
JPH0230905A (en) * 1988-07-20 1990-02-01 Mazda Motor Corp Valve system device for v-type dohc engine
JPH02123203A (en) * 1988-10-31 1990-05-10 Mazda Motor Corp Structure of cam shaft bearing of v type dohc engine
US4936265A (en) * 1989-01-21 1990-06-26 Daimler-Benz Ag V-type internal combustion engine
US4951616A (en) * 1989-02-10 1990-08-28 Nissan Motor Co., Ltd. V-type engine
JPH03107508A (en) * 1989-09-20 1991-05-07 Nissan Motor Co Ltd Cylinder head for v-shaped engine
JPH0392507U (en) * 1989-12-29 1991-09-20
US5184581A (en) * 1989-09-21 1993-02-09 Yamaha Hatsudoki Kabushiki Kaisha Valve timing retarding system
JPH0749015A (en) * 1994-04-05 1995-02-21 Mitsubishi Motors Corp Valve system for internal combustion engine
JPH08319807A (en) * 1995-11-28 1996-12-03 Mazda Motor Corp Valve system for dohc engine having two banks

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0517362A (en) * 1991-07-10 1993-01-26 Yoshitomi Pharmaceut Ind Ltd Bile extract-containing composition reduced in fishy taste and bitter taste

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0517362A (en) * 1991-07-10 1993-01-26 Yoshitomi Pharmaceut Ind Ltd Bile extract-containing composition reduced in fishy taste and bitter taste

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4840149A (en) * 1987-07-07 1989-06-20 Toyota Jidosha Kabushiki Kaisha Camshaft apparatus for an internal combustion engine
DE3923984A1 (en) * 1988-07-20 1990-01-25 Mazda Motor VALVE DRIVE FOR A V-DESIGN INTERNAL COMBUSTION ENGINE WITH DOUBLE OVERHEAD CAMSHAFT
JPH0230905A (en) * 1988-07-20 1990-02-01 Mazda Motor Corp Valve system device for v-type dohc engine
US4915066A (en) * 1988-07-20 1990-04-10 Mazda Motor Corporation Valve train for V-type double-overhead-camshaft engine
JPH02123203A (en) * 1988-10-31 1990-05-10 Mazda Motor Corp Structure of cam shaft bearing of v type dohc engine
US4936265A (en) * 1989-01-21 1990-06-26 Daimler-Benz Ag V-type internal combustion engine
US4951616A (en) * 1989-02-10 1990-08-28 Nissan Motor Co., Ltd. V-type engine
JPH03107508A (en) * 1989-09-20 1991-05-07 Nissan Motor Co Ltd Cylinder head for v-shaped engine
US5184581A (en) * 1989-09-21 1993-02-09 Yamaha Hatsudoki Kabushiki Kaisha Valve timing retarding system
JPH0392507U (en) * 1989-12-29 1991-09-20
JPH0749015A (en) * 1994-04-05 1995-02-21 Mitsubishi Motors Corp Valve system for internal combustion engine
JPH08319807A (en) * 1995-11-28 1996-12-03 Mazda Motor Corp Valve system for dohc engine having two banks

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