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1. WO2017037935 - LUBRICATION STRUCTURE AND LUBRICATION METHOD FOR UPPER PIN IN PISTON CRANK MECHANISM OF INTERNAL COMBUSTION ENGINE

Publication Number WO/2017/037935
Publication Date 09.03.2017
International Application No. PCT/JP2015/075169
International Filing Date 04.09.2015
IPC
F02B 75/32 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
75Other engines, e.g. single-cylinder engines
32Engines characterised by connections between pistons and main shafts and not specific to preceding main groups
CPC
F01M 1/00
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
MLUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
1Pressure lubrication
F01M 11/02
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
MLUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
11Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
02Arrangements of lubricant conduits
F01M 2011/027
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
MLUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
11Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
02Arrangements of lubricant conduits
027for lubricating connecting rod bearings
F02B 75/045
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
75Other engines
04Engines with variable distances between pistons at top dead-centre positions and cylinder heads
045by means of a variable connecting rod length
F02B 75/32
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
75Other engines
32Engines characterised by connections between pistons and main shafts and not specific to preceding main groups
F16C 2360/22
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
2360Engines or pumps
22Internal combustion engines
Applicants
  • 日産自動車株式会社 NISSAN MOTOR CO., LTD. [JP]/[JP]
Inventors
  • 渡邊 大介 WATANABE, Daisuke
  • 中島 茂 NAKAJIMA, Shigeru
  • 脇 和人 WAKI, Kazuto
  • 小林 義洋 KOBAYASHI, Yoshihiro
Agents
  • 小林 博通 KOBAYASHI, Hiromichi
Priority Data
Publication Language Japanese (ja)
Filing Language Japanese (JA)
Designated States
Title
(EN) LUBRICATION STRUCTURE AND LUBRICATION METHOD FOR UPPER PIN IN PISTON CRANK MECHANISM OF INTERNAL COMBUSTION ENGINE
(FR) STRUCTURE DE LUBRIFICATION ET PROCÉDÉ DE LUBRIFICATION POUR BROCHE SUPÉRIEURE DE MÉCANISME DE VILEBREQUIN À PISTON DE MOTEUR À COMBUSTION INTERNE
(JA) 内燃機関のピストンクランク機構におけるアッパピンの潤滑構造および潤滑方法
Abstract
(EN) This lubrication mechanism is applied to a double link type piston crank mechanism having an upper link (3), a lower link (6), and a control link (7). Lubricating oil is supplied through an oil supply hole (19) to an oil reservoir (21) formed by a plate-shaped member (22) between a pair of pin bosses for an upper pin. The lubricating oil inside the oil reservoir (21) is supplied to the upper pin (4) by reciprocating rotary motion of an upper link-side pin boss section (25) provided with an oil groove (29) on an end surface.
(FR) L'invention concerne un mécanisme de lubrification, lequel mécanisme est appliqué à un mécanisme de vilebrequin à piston du type à double liaison comportant une liaison supérieure (3), une liaison inférieure (6), et une liaison de commande (7). L'huile de lubrification est envoyée à travers un trou d'alimentation en huile (19) à un réservoir d'huile (21) formé par un élément en forme de plaque (22) entre une paire de protubérances de broche pour une broche supérieure. L'huile de lubrification à l'intérieur du réservoir d'huile (21) est fournie à la broche supérieure (4) par un mouvement rotatif de va-et-vient d'une section de protubérance de broche côté liaison supérieure (25) comportant une rainure d'huile (29) sur une surface d'extrémité.
(JA)  本発明の潤滑構造は、アッパリンク(3)とロアリンク(6)とコントロールリンク(7)とを有する複リンク式ピストンクランク機構に適用される。一対のアッパピン用ピンボス部(12)の間に板状部材(22)によって形成された油溜め部(21)に、油供給孔(19)を通して潤滑油が供給される。油溝(29)を端面に備えたアッパリンク側ピンボス部(25)が往復回転運動することで、油溜め部(21)内の潤滑油がアッパピン(4)へ供給される。
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