JPS62118030A - Internal combustion engine - Google Patents

Internal combustion engine

Info

Publication number
JPS62118030A
JPS62118030A JP25915785A JP25915785A JPS62118030A JP S62118030 A JPS62118030 A JP S62118030A JP 25915785 A JP25915785 A JP 25915785A JP 25915785 A JP25915785 A JP 25915785A JP S62118030 A JPS62118030 A JP S62118030A
Authority
JP
Japan
Prior art keywords
timing belt
power
pulley
gear
fuel pump
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
JP25915785A
Other languages
Japanese (ja)
Other versions
JPH0623541B2 (en
Inventor
Kazukado Usui
臼井 一門
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.)
Yanmar Co Ltd
Original Assignee
Yanmar Diesel Engine 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 Yanmar Diesel Engine Co Ltd filed Critical Yanmar Diesel Engine Co Ltd
Priority to JP60259157A priority Critical patent/JPH0623541B2/en
Publication of JPS62118030A publication Critical patent/JPS62118030A/en
Publication of JPH0623541B2 publication Critical patent/JPH0623541B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B67/00Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for
    • F02B67/04Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of mechanically-driven auxiliary apparatus
    • F02B67/06Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of mechanically-driven auxiliary apparatus driven by means of chains, belts, or like endless members
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/02Valve drive
    • F01L1/024Belt drive
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B2275/00Other engines, components or details, not provided for in other groups of this subclass
    • F02B2275/06Endless member is a belt

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 interchanging operation for a timing belt ever so simple, by installing a gear mechanism transmitting power from a crankshaft to a driving shaft for accessories as well as installing the timing belt transmitting power from the accessory driving shaft to a camshaft and a fuel pump. CONSTITUTION:Power is transmitted to an operating oil pump requiring a large power with a gear mechanism 44 by means of gear transmission. And, power is transmitted to a cam pulley 32 and a fuel pump pulley being drivable with even small power from a timing belt pulley 50 with a timing belt 34. According to this method, since the inside a timing belt cover becomes unnecessary to house the gear mechanism 44 for driving the operation oil pump, this timing belt cover can be made smaller. In addition, interchanging operation for the timing belt 34 comes so simple.

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明は、内周面に段付き歯を有するタイミングベルト
でカム軸等を駆動する内燃機関に係り、特に例えば作動
油ポンプ等の比較的大きな動力を要する補機を備えた内
燃機関の改良に関するものである。
DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to an internal combustion engine that drives a camshaft or the like with a timing belt having stepped teeth on its inner circumferential surface, and particularly relates to an internal combustion engine that drives a camshaft or the like using a timing belt having stepped teeth on its inner circumferential surface. This invention relates to the improvement of internal combustion engines equipped with auxiliary machines that require large amounts of power.

(従来技術及びその問題点) 従来から、内燃機関のクランク軸からの動力を例えばカ
ム軸、燃料ポンプ等に伝達するため、内周面に段付き歯
を有する所謂タイミングベルトが利用されている。この
タイミングベルトは内燃機関の小型軽量化、高速化に有
効であるが、動力伝達容量が小さく、かつ寿命が現状で
は3000時間程時間短いという欠点がある。
(Prior Art and its Problems) Conventionally, a so-called timing belt having stepped teeth on its inner circumferential surface has been used to transmit power from the crankshaft of an internal combustion engine to, for example, a camshaft, a fuel pump, etc. Although this timing belt is effective in reducing the size, weight, and speed of internal combustion engines, it has the drawbacks of a small power transmission capacity and a short life span of about 3,000 hours at present.

したがってカム軸、燃料ポンプの他に比較的大きな動力
を要する作動油ポンプが備えられている場合が多い汎用
、舶用内燃機関ではタイミングベルトを採用することが
困難である。
Therefore, it is difficult to use a timing belt in general-purpose marine internal combustion engines, which are often equipped with a hydraulic oil pump that requires relatively large power in addition to a camshaft and a fuel pump.

(発明の目的) 本発明は、大きな動力を要する補機が備えられた内燃機
関にカム軸、燃料ポンプ駆動用のタイミングベルトを採
用することかできる内燃機関を捉供することを目的とし
ている。
(Object of the Invention) An object of the present invention is to provide an internal combustion engine that is equipped with auxiliary equipment that requires a large amount of power and can employ a camshaft and a timing belt for driving a fuel pump.

(発明の構成) (1)技術的手段 本発明は、内周面に段付き歯を有するタイミングベルト
でカム軸及び燃料ポンプを駆動する内燃機関において、
クランク軸から大きな動力を要する補機の駆動軸へ動力
を伝達するギヤ機構を設け、前記補機駆動軸からカム軸
及び燃料ポンプへ動力を伝達するタイミングベルトを設
けたことを特徴とする内燃機関である。
(Structure of the Invention) (1) Technical Means The present invention provides an internal combustion engine in which a camshaft and a fuel pump are driven by a timing belt having stepped teeth on the inner peripheral surface.
An internal combustion engine characterized by being provided with a gear mechanism that transmits power from a crankshaft to a drive shaft of an auxiliary machine that requires large power, and a timing belt that transmits power from the auxiliary drive shaft to a camshaft and a fuel pump. It is.

(2)作用 動力伝達容量の大きなギヤ機構で大きな動力を要する補
機を駆動し、カム軸及び燃料ポンプには補機駆動軸から
タイミングベルトを介して動力を伝達する。
(2) A gear mechanism with a large operating power transmission capacity drives an auxiliary machine that requires a large amount of power, and power is transmitted from the auxiliary drive shaft to the camshaft and fuel pump via a timing belt.

(実施例) 本発明を採用した汎用ディーゼルエンジンの側面図であ
る第1図において、10はシリンダブロック、12はシ
リンダヘッド、14はフライホイールである。
(Example) In FIG. 1, which is a side view of a general-purpose diesel engine employing the present invention, 10 is a cylinder block, 12 is a cylinder head, and 14 is a flywheel.

シリンダブロック10の前端部からクランク軸16の端
部が突出しており、クランク軸16の前r5部1.14
;tV7− ’J 18、前端部vjIIIIl120
が固定されている。22は詳しくは後述する作動油ポン
プ笠の補機駆動用のクランクギヤである。
The end of the crankshaft 16 protrudes from the front end of the cylinder block 10, and the front r5 portion 1.14 of the crankshaft 16
;tV7-'J 18, anterior end vjIIIl120
is fixed. Reference numeral 22 designates a crank gear for driving an auxiliary machine for the hydraulic oil pump shade, which will be described in detail later.

シリンダブロック10の前端部には冷7JI水ポンプ2
4が設けられており、冷141水ポンプ24のVプーリ
26はVプーリ18に巻ぎ掛けられたベルト28で駆動
されるようになっている。またシリンダヘッド12には
カム軸30が備えられておりカム軸30の前端部にはカ
ムプーリ32が固定されている。
A cold 7JI water pump 2 is installed at the front end of the cylinder block 10.
4 is provided, and the V-pulley 26 of the cold water pump 24 is driven by a belt 28 wrapped around the V-pulley 18. Further, the cylinder head 12 is equipped with a camshaft 30, and a cam pulley 32 is fixed to the front end of the camshaft 30.

カムブー932は詳しくは後述づるタイミングベルト3
4で駆動されるものである。このカムプーリ32、タイ
ミングベルト34はタイミングベルトカバー36で覆わ
れており、冷141水ポンプ24のハブ24aはタイミ
ングベルトカバー36の開口部36aを貫通している。
Cambu 932 has timing belt 3 which will be explained in detail later.
It is driven by 4. The cam pulley 32 and timing belt 34 are covered with a timing belt cover 36, and the hub 24a of the cold 141 water pump 24 passes through an opening 36a of the timing belt cover 36.

タイミングベルトカバー36はシリンダブロック10の
前端部にフロントプレート11を介して固定されたギヤ
ケース10aの端面38に衝合している。
The timing belt cover 36 abuts against an end surface 38 of a gear case 10a fixed to the front end of the cylinder block 10 via the front plate 11.

第1図のI−n断面を示す第2図において、クランクギ
ヤ22の図中の右方にはアイドルギヤ40が噛合してい
る。史にアイドルギヤ40は補機駆動ギヤ42に噛合し
ており、これらのクランクギヤ22、アイドルギヤ40
、補機駆動ギヤ42で1゛ヤ機構44が構成されている
。補機駆動ギヤ42はギヤケース10aに固定されてい
る作動油ポンプ46(第3図)等の大きな動力を要する
補機に連結している。以上のギヤ機構44の減速比は1
:1に設定されている。
In FIG. 2, which shows the I--n cross section of FIG. 1, an idle gear 40 meshes with the crank gear 22 on the right side of the diagram. Historically, the idle gear 40 meshes with the auxiliary drive gear 42, and these crank gear 22, idle gear 40
, and an auxiliary drive gear 42 constitute a one-wheel mechanism 44. The auxiliary drive gear 42 is connected to an auxiliary machine that requires large power, such as a hydraulic oil pump 46 (FIG. 3) fixed to the gear case 10a. The reduction ratio of the above gear mechanism 44 is 1
: It is set to 1.

補機駆動ギヤ42の前方(第2図の紙面の直角方向手前
)には同軸状に駆動側のタイミングベルトプーリ50が
詳しくは後述するように設けられている。タイミングベ
ルトプーリ50、カムプーリ32、燃料ポンププーリ5
2の外周面にはタイミングベルト34が巻き打ト()ら
れている。タイミングベルト34の内周面には段付き歯
34aが形成されている。タイミングベルトプーリ50
と燃料ポンププーリ52の間にはタイミングベルト34
の張力を一定に維持づるテンションプーリb4が設けら
れている。タイミングベルトプーリ50の回転数と被動
側のプーリ32.52の回転数は1:2に設定されてい
る。
A drive-side timing belt pulley 50 is coaxially provided in front of the auxiliary drive gear 42 (in front in the direction perpendicular to the plane of FIG. 2), as will be described in detail later. Timing belt pulley 50, cam pulley 32, fuel pump pulley 5
A timing belt 34 is wound around the outer circumferential surface of 2. Stepped teeth 34a are formed on the inner peripheral surface of the timing belt 34. timing belt pulley 50
and the timing belt 34 between the fuel pump pulley 52 and the fuel pump pulley 52.
A tension pulley b4 is provided to keep the tension constant. The number of rotations of the timing belt pulley 50 and the number of rotations of the driven pulleys 32 and 52 are set at 1:2.

ギヤケース10a部分の詳細は第3図に示すように、シ
リンダブロック10とギヤケース10aの間の空間55
にはクランクギヤ22、アイドルギヤ40、補機駆動ギ
ヤ42が収容されている。
The details of the gear case 10a portion are as shown in FIG.
A crank gear 22, an idle gear 40, and an auxiliary drive gear 42 are accommodated in the housing.

アイドルギヤ40の軸40aはシリンダブロック10に
支持されている。補機駆動ギヤ42の補機駆動軸42a
はベアリング56.58を介してフロントプレート11
 、=1−ヤケース10aに’t’lll 支されてお
り、補機駆動軸42aの図中の上端部には作動油ポンプ
46が連結している。補機駆動軸42aの図中の下端部
にはタイミングベルトプーリ50が固定されており、タ
イミングベルトプーリ50にはタイミングベルト34が
巻き11)りられている。史にタイミングベルトプーリ
50の周囲はタイミングベルトカバー36で覆われてい
る。
A shaft 40a of the idle gear 40 is supported by the cylinder block 10. Auxiliary drive shaft 42a of the auxiliary drive gear 42
is the front plate 11 via bearings 56 and 58.
,=1-Ya case 10a, and a hydraulic oil pump 46 is connected to the upper end of the accessory drive shaft 42a in the drawing. A timing belt pulley 50 is fixed to the lower end of the accessory drive shaft 42a in the drawing, and the timing belt 34 is wound around the timing belt pulley 50 (11). Historically, the timing belt pulley 50 is covered with a timing belt cover 36.

次に作用を説明1“る。第2図に承XJ−J:うにクラ
ンクギヤ22からの動力は、まずギt FfM tfM
 44のアイドルギヤ40、補機駆動ギヤ42で作動油
ポンプ46(第3図)に伝達される。作動油ポンプ46
は比較的大きな動力を要し、しかもエンジン回転中は常
に回転しているが、ギヤ伝動のギヤ機構44で確実に動
力伝達が行なわれる。
Next, we will explain the operation. Fig. 2 shows the power from the crank gear 22.
It is transmitted to a hydraulic oil pump 46 (FIG. 3) through an idle gear 40 and an auxiliary drive gear 42. Hydraulic oil pump 46
Although it requires relatively large power and is constantly rotating while the engine is rotating, the power is reliably transmitted by the gear mechanism 44 of gear transmission.

MIm駆動ギヤ42の補機駆動軸42aにはタイミング
ベルトプーリ50が固定されているので、補機駆動ギヤ
42にギヤ伝動されたクランク軸動力の一部はタイミン
グベルトプーリ50から燃料ポンププーリ52、カムプ
ーリ32ヘタイミングベルト34で伝達される。燃料ポ
ンププーリ52、カムプーリ32は比較的小ざな動力で
駆動し得るので、動力伝達容量の小さなタイミングベル
ト34でも充分にvJ力伝達が可能で、タイミングベル
ト34の寿命も長い。
Since the timing belt pulley 50 is fixed to the accessory drive shaft 42a of the MIm drive gear 42, a part of the crankshaft power transmitted to the accessory drive gear 42 is transferred from the timing belt pulley 50 to the fuel pump pulley 52 and the cam pulley. 32 through a timing belt 34. Since the fuel pump pulley 52 and the cam pulley 32 can be driven with relatively small power, even the timing belt 34 with a small power transmission capacity can sufficiently transmit VJ force, and the life of the timing belt 34 is long.

(発明の効果) 以上説明したように本発明による内燃機関では、大きな
動力を要する作動油ポンプ46をギヤ伝動によるギヤ機
構44で動力を伝達し、小さな動力でも駆動され得るカ
ムプーリ32、燃料ポンププーリ52へはタイミングベ
ルト34でタイミングベルトプーリ50から動力を伝達
するようにしたので、大きな動力を要する作動油ポンプ
46が備えられている場合でもタイミングベルト34で
燃料ポンププーリ52、カムプーリ32を駆動すること
ができる。
(Effects of the Invention) As explained above, in the internal combustion engine according to the present invention, power is transmitted to the hydraulic oil pump 46, which requires a large amount of power, by the gear mechanism 44 using gear transmission, and the cam pulley 32 and the fuel pump pulley 52 can be driven even with a small amount of power. Since power is transmitted from the timing belt pulley 50 to the timing belt 34, the timing belt 34 can drive the fuel pump pulley 52 and the cam pulley 32 even if the hydraulic oil pump 46, which requires a large amount of power, is provided. can.

またタイミングベルト34を覆うタイミングベルトカバ
ー36の内部には作動油ポンプ46を駆動するためのギ
ヤ機構44を収容する必要がなくなるので、タイミング
ベルトカバー36が小さくなるとともに、タイミングベ
ルト34を交換する際にも前部駆動軸20を分解せずに
タイミングベルトカバー36だけをギヤケース10aが
ら取外せばよく、タイミングベルト34の交換作業が筒
中になる。
Furthermore, since there is no need to house the gear mechanism 44 for driving the hydraulic oil pump 46 inside the timing belt cover 36 that covers the timing belt 34, the timing belt cover 36 becomes smaller and when the timing belt 34 is replaced. In this case, only the timing belt cover 36 can be removed from the gear case 10a without disassembling the front drive shaft 20, and the timing belt 34 can be replaced in the cylinder.

(別の実施例) (1) 第3図の作動油ポンプ46へ動力を伝達するギ
ヤ機構44のギヤ比は1:1の場合に限らず、次のよう
に減速しながら動力を伝えることもできる。
(Another Example) (1) The gear ratio of the gear mechanism 44 that transmits power to the hydraulic oil pump 46 in FIG. 3 is not limited to 1:1, and power may be transmitted while decelerating as shown below. can.

前記ギヤ機構44のギヤ比は第4図に示すように、クラ
ンクギヤ22の回転数を減速して補機駆動ギヤ42に伝
えるように設定されている。すなわち、クランクギヤ2
2の基準円直径をDl−とすると、アイドルギヤ40、
補機駆動ギヤ42の基準円直径D2′は D2”=3/2D1− ・・・・・・(1)に設定され
ている。またタイミングベルトプーリ50の基準円直径
をdl−とすると、燃料ポンププーリ52、カムプーリ
32の基準円直径d2−は d2==4/3dl”   ・・・・・・ (2)に設
定されている。
As shown in FIG. 4, the gear ratio of the gear mechanism 44 is set to reduce the rotational speed of the crank gear 22 and transmit it to the accessory drive gear 42. That is, crank gear 2
If the reference circle diameter of 2 is Dl-, the idle gear 40,
The reference circle diameter D2' of the auxiliary drive gear 42 is set as D2''=3/2D1- (1).If the reference circle diameter of the timing belt pulley 50 is dl-, then the fuel The reference circular diameter d2- of the pump pulley 52 and the cam pulley 32 is set to d2==4/3dl'' (2).

以上のギヤ機構44を第5図の周速の場合と比較づると
、第5図のクランクギヤ22、アイドルギヤ40、補機
駆動ギヤ42は D1=02    ・・・・・・(3)に設定され、 d2=2dl   ・・・・・・(4)に設定されてい
る。
Comparing the above gear mechanism 44 with the circumferential speed case shown in Fig. 5, the crank gear 22, idle gear 40, and auxiliary drive gear 42 shown in Fig. 5 have D1=02 (3). d2=2dl (4).

第5図の場合におけるクランクギヤ22の中心と燃料ポ
ンププーリ52の外縁距離をY1カムプーリ32の上縁
高さをXとすると、第4図の場合は dl−=d1    ・・・・・・(5)であるので、 d2−=4/3dl<<2dl=d2・・・(6)を得
る。したがって、燃料ポンププーリ52、カムプーリ3
2の基準円直径d2−が小さくなるので、第4図の距離
Y′は距離Yより小さくなり、高さX′も高さXより低
くなる。
If the distance between the center of the crank gear 22 and the outer edge of the fuel pump pulley 52 in the case of FIG. 5 is Y1 and the height of the upper edge of the cam pulley 32 is X, then in the case of FIG. ), we obtain d2-=4/3dl<<2dl=d2...(6). Therefore, the fuel pump pulley 52, the cam pulley 3
Since the reference circle diameter d2- of 2 becomes smaller, the distance Y' in FIG. 4 becomes smaller than the distance Y, and the height X' also becomes lower than the height X.

以上のようにギヤ機構44のギヤ比を設定りるとエンジ
ンの全幅、全高が小ざくなり、小型化される。
By setting the gear ratio of the gear mechanism 44 as described above, the overall width and overall height of the engine are reduced, resulting in a smaller size.

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

第1図は本発明を採用した汎用ディーゼルエンジンの側
面図、第2図は第1図のI[−Ill曲面図第3図は第
2図の■−■断面図、第4図は別の実施例を示す構造略
図、第5図は周速で動力を伝達する場合を示す構造略図
である。10・・・シリンダブロック、12・・・シリ
ンダヘッド、16・・・クランク軸、22・・・クラン
クギヤ、30・・・カム軸、32・・・カムプーリ、3
4・・・タイミングベルト、36・・・タイミングベル
トカバー、40・・・アイドルギヤ、42・・・補機駆
動ギヤ、44・・・−1!ヤ機構、46・・・作動油ポ
ンプ 特許出願人 ヤンマーディーゼル株式会社代理人 弁理
t 大食忠孝  ゛。 手−わ°L:ネ市正壽 (【自′5を)1.事1′1の
表示 昭和(50イ1− 特 許 願 第259157号2、
発明の名称 内燃機関 3、補正をする名 事件との関係        特許出願人性 所  大
阪市北区茶屋町1番32号名 称  (678) 17
ンマ一デイーピル株式会礼代表名  代表取締役 山 
岡 淳 男4、代理人 (1所  大阪市北区東大満2丁1−19番4号千代田
ビル東館10階 (〒530) 1゛誼話 大阪 (06)353−1634+番氏 名
  (6:+2!+)  弁理士 人森忠革5、補正命
令の11付く発送日)昭和 年 月 [1」 6、補正の対象  ←詰←図面 7、補1[の内容 (1) 図面の第3図を添トド1の補正図面の通りに訂
正する。 8、添附書類の目録 補正図面           ・・・1通以−F
Fig. 1 is a side view of a general-purpose diesel engine adopting the present invention, Fig. 2 is an I[-Ill curved surface diagram of Fig. 1, Fig. 3 is a sectional view taken along FIG. 5 is a schematic structural diagram showing an embodiment, and FIG. 5 is a schematic structural diagram showing a case where power is transmitted at a circumferential speed. DESCRIPTION OF SYMBOLS 10... Cylinder block, 12... Cylinder head, 16... Crankshaft, 22... Crank gear, 30... Camshaft, 32... Cam pulley, 3
4...Timing belt, 36...Timing belt cover, 40...Idle gear, 42...Auxiliary drive gear, 44...-1! Ya mechanism, 46... Hydraulic oil pump patent applicant Yanmar Diesel Co., Ltd. Attorney t Tadataka Oshiki ゛. Hand-wa°L: Neichi Masatoshi ([self'5]) 1. Showa era (50 I1-Patent Application No. 259157 2)
Name of the invention Internal combustion engine 3, Relationship to famous case for amendment Patent applicant Location 1-32 Chayamachi, Kita-ku, Osaka Name (678) 17
Nmaichi Day Pill Co., Ltd. Representative Name Representative Director Yama
Atsushi Oka 4, Agent (1st Floor, East Building, Chiyoda Building, 2-1-19-4 Higashidaiman, Kita-ku, Osaka (〒530) 1゛Yiwa Osaka (06) 353-1634 + Number Name (6: +2!+) Patent Attorney Tadaka Hitomori 5, Date of dispatch of the amendment order marked 11) Showa year, month [1] 6. Subject of amendment ← ← Drawing 7, Supplement 1 [Contents (1) Figure 3 of the drawing shall be corrected as shown in the corrected drawing in Attachment 1. 8. Revised drawings for catalog of attached documents...1 copy or more -F

Claims (2)

【特許請求の範囲】[Claims] (1)内周面に段付き歯を有するタイミングベルトでカ
ム軸及び燃料ポンプを駆動する内燃機関において、クラ
ンク軸から大きな動力を要する補機の駆動軸へ動力を伝
達するギヤ機構を設け、前記補機駆動軸からカム軸及び
燃料ポンプへ動力を伝達するタイミングベルトを設けた
ことを特徴とする内燃機関。
(1) In an internal combustion engine in which a camshaft and a fuel pump are driven by a timing belt having stepped teeth on the inner circumferential surface, a gear mechanism is provided to transmit power from the crankshaft to the drive shaft of an auxiliary device that requires large power, and An internal combustion engine characterized by being provided with a timing belt that transmits power from an auxiliary drive shaft to a camshaft and a fuel pump.
(2)ギヤ機構のギヤ比を補機駆動軸へ減速しながら動
力を伝達するように設定し、クランク軸回転数に対して
1:2で減速されるカム軸及び燃料ポンプのプーリ外径
を小径化している特許請求の範囲第1項記載の内燃機関
(2) Set the gear ratio of the gear mechanism to transmit power while decelerating it to the auxiliary drive shaft, and set the outer diameter of the camshaft and fuel pump pulley, which are decelerated at a ratio of 1:2 to the crankshaft rotation speed. An internal combustion engine according to claim 1, which has a reduced diameter.
JP60259157A 1985-11-18 1985-11-18 Internal combustion engine Expired - Lifetime JPH0623541B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP60259157A JPH0623541B2 (en) 1985-11-18 1985-11-18 Internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60259157A JPH0623541B2 (en) 1985-11-18 1985-11-18 Internal combustion engine

Publications (2)

Publication Number Publication Date
JPS62118030A true JPS62118030A (en) 1987-05-29
JPH0623541B2 JPH0623541B2 (en) 1994-03-30

Family

ID=17330135

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60259157A Expired - Lifetime JPH0623541B2 (en) 1985-11-18 1985-11-18 Internal combustion engine

Country Status (1)

Country Link
JP (1) JPH0623541B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003054550A (en) * 2001-08-10 2003-02-26 Toyoda Suchiirusentaa Kk Pallet for coil-shaped transporting item, loading structure for coil-shaped transporting item to pallet and storing structure for coil-shaped transporting item stacked-up pallet for container
JP2006183677A (en) * 2004-12-24 2006-07-13 Yanmar Co Ltd Pulley

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60190903U (en) * 1984-05-29 1985-12-18 本田技研工業株式会社 Valve camshaft drive device for overhead cam engines

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60190903U (en) * 1984-05-29 1985-12-18 本田技研工業株式会社 Valve camshaft drive device for overhead cam engines

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003054550A (en) * 2001-08-10 2003-02-26 Toyoda Suchiirusentaa Kk Pallet for coil-shaped transporting item, loading structure for coil-shaped transporting item to pallet and storing structure for coil-shaped transporting item stacked-up pallet for container
CN100398404C (en) * 2001-08-10 2008-07-02 丰田钢铁中心株式会社 Pallet for coil like transferred object, structural body for loading coil like transferred object on pallet, structural body for storing coil like transferred object loading pallet in cont
JP2006183677A (en) * 2004-12-24 2006-07-13 Yanmar Co Ltd Pulley

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