JP2017160834A - オーバーヘッドカムシャフト式エンジン - Google Patents
オーバーヘッドカムシャフト式エンジン Download PDFInfo
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- JP2017160834A JP2017160834A JP2016045618A JP2016045618A JP2017160834A JP 2017160834 A JP2017160834 A JP 2017160834A JP 2016045618 A JP2016045618 A JP 2016045618A JP 2016045618 A JP2016045618 A JP 2016045618A JP 2017160834 A JP2017160834 A JP 2017160834A
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- Prior art keywords
- bearing
- diameter
- crankshaft
- pulley
- crankcase
- Prior art date
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Classifications
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- 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 or frames
- F02F7/0043—Arrangements of mechanical drive elements
-
- 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
-
- 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
- F02B67/00—Engines 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
- F02B67/04—Engines 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
- F02B67/06—Engines 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
-
- 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
-
- 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
- F02F1/00—Cylinders; Cylinder heads
- F02F1/002—Integrally formed cylinders and cylinder heads
-
- 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 or frames
- F02F7/0043—Arrangements of mechanical drive elements
- F02F7/0053—Crankshaft bearings fitted in the crankcase
-
- 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 or frames
- F02F7/0065—Shape of casings for other machine parts and purposes, e.g. utilisation purposes, safety
- F02F7/0073—Adaptations for fitting the engine, e.g. front-plates or bell-housings
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C3/00—Shafts; Axles; Cranks; Eccentrics
- F16C3/04—Crankshafts, eccentric-shafts; Cranks, eccentrics
- F16C3/06—Crankshafts
-
- 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
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/035—Gearboxes for gearing with endless flexible members
-
- 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
- F01L2001/0476—Camshaft bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P1/00—Air cooling
- F01P1/02—Arrangements for cooling cylinders or cylinder heads, e.g. ducting cooling-air from its pressure source to cylinders or along cylinders
-
- 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 or frames
- F02F7/0065—Shape of casings for other machine parts and purposes, e.g. utilisation purposes, safety
- F02F7/0073—Adaptations for fitting the engine, e.g. front-plates or bell-housings
- F02F2007/0078—Covers for belt transmissions
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2240/00—Specified values or numerical ranges of parameters; Relations between them
- F16C2240/40—Linear dimensions, e.g. length, radius, thickness, gap
- F16C2240/70—Diameters; Radii
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2360/00—Engines or pumps
- F16C2360/22—Internal combustion engines
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C9/00—Bearings for crankshafts or connecting-rods; Attachment of connecting-rods
- F16C9/02—Crankshaft bearings
Abstract
【解決手段】クランク軸20の両端部が第1軸受21と第2軸受22とによってクランクケース12に支持され、前記クランク軸の他端部にカム駆動プーリ53が組み付けられたオーバーヘッドカムシャフト式エンジン10である。前記カム駆動プーリは、タイミングベルトプーリによって構成されており、前記第2軸受に対し前記クランクケースのシリンダ15とは反対側に位置している。前記クランク軸の他端部のなかの、前記タイミングベルトプーリを組み付ける部位24bの第1の径D1は、前記第2軸受によって支持される部位24aの第2の径D2よりも小径である。前記タイミングベルトプーリの径Dcは、少なくとも第1の径が第2の径よりも小径である分だけ小径である。
【選択図】図1
Description
11 エンジンケース本体
12 クランクケース
12a クランクケースの底部
15 シリンダ
20 クランク軸
21 第1軸受
22 第2軸受
23 クランク軸の一端部
24 クランク軸の他端部
24a 軸受支持部位(第2軸受によって支持される部位)
24b プーリ組み付け部位(カム駆動プーリを組み付ける部位)
31 第1のケース半体
31a 第1のケース半体の分割面
32 第2のケース半体
32a 第2のケース半体の分割面
33 ボルト
35 保持部材取り付け面
51 カムシャフト
52 カム従動プーリ
53 カム駆動プーリ
53a カム駆動プーリのハブ
54 ベルト
56 ボルト
60 軸受保持部材
71 止め輪
71a 止め輪の外周面
72 位置決めピン
72a 一端部
72b 一端部の端面
73 ボルト
82 オイルスリンガ
85 駆動ギヤ
86 従動ギヤ
D1 タイミングベルトプーリを組み付ける部位(プーリ組み付け部位)の第1の径
D2 第2軸受によって支持される部位(軸受支持部位)の第2の径
Dc タイミングベルトプーリの径(カム駆動プーリの径)
Ju 潤滑油
Claims (1)
- クランク軸の一端部が第1軸受によってクランクケースに支持され、
前記クランク軸の他端部が第2軸受によって前記クランクケースに支持され、
前記クランク軸の他端部にカム駆動プーリが組み付けられたオーバーヘッドカムシャフト式エンジンにおいて、
前記カム駆動プーリは、タイミングベルトプーリによって構成されており、前記第2軸受に対し前記クランクケースのシリンダとは反対側に位置し、
前記クランク軸の他端部のなかの、前記タイミングベルトプーリを組み付ける部位の第1の径は、前記第2軸受によって支持される部位の第2の径よりも小径に設定され、
前記タイミングベルトプーリの径は、少なくとも前記第1の径が前記第2の径よりも小径である分だけ小径に設定されていることを特徴とするオーバーヘッドカムシャフト式エンジン。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016045618A JP6725270B2 (ja) | 2016-03-09 | 2016-03-09 | オーバーヘッドカムシャフト式エンジン |
US15/364,901 US10030547B2 (en) | 2016-03-09 | 2016-11-30 | Overhead camshaft engine |
CN201611213285.2A CN107178434B (zh) | 2016-03-09 | 2016-12-23 | 顶置凸轮轴发动机 |
EP16207091.6A EP3216990B1 (en) | 2016-03-09 | 2016-12-28 | Overhead camshaft engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016045618A JP6725270B2 (ja) | 2016-03-09 | 2016-03-09 | オーバーヘッドカムシャフト式エンジン |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2017160834A true JP2017160834A (ja) | 2017-09-14 |
JP6725270B2 JP6725270B2 (ja) | 2020-07-15 |
Family
ID=57614272
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2016045618A Active JP6725270B2 (ja) | 2016-03-09 | 2016-03-09 | オーバーヘッドカムシャフト式エンジン |
Country Status (4)
Country | Link |
---|---|
US (1) | US10030547B2 (ja) |
EP (1) | EP3216990B1 (ja) |
JP (1) | JP6725270B2 (ja) |
CN (1) | CN107178434B (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6914594B2 (ja) * | 2017-08-09 | 2021-08-04 | ヤマハ発動機株式会社 | 駆動ユニットおよび電動補助自転車 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3352293A (en) * | 1965-07-28 | 1967-11-14 | Gen Motors Corp | Camshaft construction |
DE3131278A1 (de) * | 1981-08-07 | 1983-02-24 | Bayerische Motoren Werke AG, 8000 München | Verfahren und vorrichtung zum einstellen der ventilsteuerung einer hubkolben-brennkraftmaschine, insbes. eines diesel-motors |
JP2002138898A (ja) * | 2000-11-01 | 2002-05-17 | Honda Motor Co Ltd | エンジンの動弁機構 |
EP1201882B1 (en) | 2000-10-30 | 2006-02-22 | Honda Giken Kogyo Kabushiki Kaisha | Engine valve operation mechanism |
JP4027056B2 (ja) | 2001-05-23 | 2007-12-26 | 本田技研工業株式会社 | エンジンのシリンダブロック及びそれの鋳造方法 |
US6715461B2 (en) | 2001-08-27 | 2004-04-06 | Honda Giken Kogyo Kabushiki Kaisha | System for lubricating valve-operating mechanism in engine |
CN201297191Y (zh) * | 2008-10-23 | 2009-08-26 | 江门天钇金属工业有限公司 | 一种摩托车发动机 |
-
2016
- 2016-03-09 JP JP2016045618A patent/JP6725270B2/ja active Active
- 2016-11-30 US US15/364,901 patent/US10030547B2/en active Active
- 2016-12-23 CN CN201611213285.2A patent/CN107178434B/zh active Active
- 2016-12-28 EP EP16207091.6A patent/EP3216990B1/en active Active
Also Published As
Publication number | Publication date |
---|---|
CN107178434B (zh) | 2019-06-18 |
CN107178434A (zh) | 2017-09-19 |
EP3216990A1 (en) | 2017-09-13 |
US10030547B2 (en) | 2018-07-24 |
JP6725270B2 (ja) | 2020-07-15 |
EP3216990B1 (en) | 2019-05-22 |
US20170260881A1 (en) | 2017-09-14 |
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