F - Mech Eng,Light,Heat,Weapons – 01 – M
Patent
F - Mech Eng,Light,Heat,Weapons
01
M
F01M 11/00 (2006.01) F01M 11/06 (2006.01)
Patent
CA 2754039
There is provided a four-cycle engine which can appropriately circulate oil in an engine regardless of a tilted condition with a simple structure. A crankcase (4) of a four-cycle engine (1) has a crank room (41) which rotatably supports a crankshaft (10) and an oil room (42) which is provided adjacent to the exterior of the crank room (41). The crankcase (4) also has partition walls (43) and (44) which partition the interior of the crankcase (4) into the crank room (41) and the oil room (42), respectively, and a communication path (45) which communicates the crank room (41) with the oil room (42). The partition walls (43) and (44) each has a cross section formed in a substantially V shape, and the communication path (45) is formed at an apex between the partition walls (43) and (44).
L'invention concerne un moteur à quatre temps permettant, à l'aide d'une structure simple, de faire circuler de manière appropriée de l'huile dans un moteur, indépendamment d'un état incliné. Un carter de moteur (4) d'un moteur à quatre temps (1) présente une chambre de carter (41) soutenant de manière rotative un vilebrequin (10) et une chambre d'huile (42) agencée de manière adjacente à l'extérieur de la chambre de carter (41). Le carter de moteur (4) présente également des parois de séparation (43) et (44) qui séparent l'intérieur du carter de moteur (4) en la chambre de carter (41) et la chambre d'huile (42), respectivement, et un trajet de communication (45) qui assure la communication entre la chambre de carter (41) et la chambre d'huile (42). Les parois de séparation (43) et (44) présentent chacune une section transversale sensiblement en forme de V, et le trajet de communication (45) est formé sur un sommet entre les parois de séparation (43) et (44).
Hirai Takahiro
Horiuchi Takamoto
Kurihara Katsumi
Ohira Hiroshi
Takeda Takeshi
Hitachi Koki Co. Ltd.
Riches Mckenzie & Herbert Llp
LandOfFree
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