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    • 6. 发明公开
    • General-purpose engine
    • Allzweck电机
    • EP2924250A1
    • 2015-09-30
    • EP15160479.0
    • 2015-03-24
    • HONDA MOTOR CO., LTD.
    • Ishikawa, Takeshi
    • F01M1/04F01M9/06F01M9/12
    • F01M11/02F01M1/04F01M9/06F01M9/105F01M9/12F01M11/0004F01M11/062F01M2011/0033F01M2011/021
    • In a general-purpose engine (E) including a cylinder block (3) extending obliquely from one side of a crank case (2), and a cylinder head (5) connected to an end surface of the cylinder block via a gasket (4), a unidirectional valve (V) for allowing a flow of a fluid from a crank chamber (13) to a valve operating chamber (14) and blocking a reverse flow of the fluid is installed in an upper oil passage (20). In a case where lubricant oil (23) reserved in the crank chamber flows into the valve operating chamber via a lower oil passage (21) when the engine inclines such that the inclined cylinder block further slants, positive pressures transmitted from the crank chamber to the valve operating chamber push the oil, which once flows into the valve operating chamber, back to the crank chamber via the lower oil passage.
    • 在包括从曲轴箱(2)的一侧倾斜延伸的气缸体(3)的通用发动机(E)和通过垫圈(4)连接到气缸体的端面的气缸盖 ),用于允许流体从曲柄室(13)流向阀操作室(14)并阻塞流体的逆流的单向阀(V)安装在上部油通道(20)中。 在发动机倾斜使得倾斜气缸体进一步倾斜的情况下,在曲轴室中保留的润滑油(23)经由下油路(21)流入气门操作室的情况下,从曲柄室传递到 阀操作室推动一次流入阀操作室的油经由下油通道回到曲柄室。
    • 10. 发明授权
    • ENGINE LUBRICATION SYSTEM
    • 润滑系统内燃机
    • EP0859905B1
    • 2000-03-29
    • EP96935178.2
    • 1996-11-06
    • Woodhouse, Timothy CharlesTICKNER, Stephen Ronald
    • Woodhouse, Timothy Charles
    • F01M9/12F16N7/24F01M1/02F16N13/00
    • F16N7/24F01M1/02F01M9/12F02B2275/06F16H2007/026F16N13/00F16N13/22
    • The invention provides, in one aspect, a lubrication system for internal combustion engines of the kind comprising a crankshaft (1) and an associated oil sump (3), a camshaft in a cylinder head above the oil sump, and a timing belt (5) connecting the crankshaft and camshaft via respective pulleys (2, 4). In accordance with the invention, the timing belt is adapted to entrain a sufficient quantity of oil from the oil sump to lift it to the cylinder head for lubricating purposes, thereby eliminating the need for a separate oil pump. Preferably, an oil pulley (7) is provided below the crankshaft pulley (2) positioned to be immersed in oil within the oil sump for entraining oil therefrom. In one form, in which the crankshaft and camshaft pulleys (2, 4) have similarly formed tooth sets of different diameters to effect the timing required, the timing belt (5) is of an impermeable material over its width and is formed with a set of teeth (6) around its inner face meshing with said toothed pulleys, the oil pulley also has a tooth set (8), and the timing belt has an additional set of teeth (9) extending around its outer face for meshing with the teeth of the oil pulley, said outer teeth providing the means for entraining oil to the cylinder head. In another aspect of the invention, an engine lubrication system is provided wherein a toothed pulley (2 or 4), is provided, the teeth (32, 36) of which run over a part of their rotation in a restricted passage provided by a casing (10) and a belt (5) having mating teeth also runs for part of its movement in a restricted passage provided by said casing, these runs being guided to a meeting point (33, 35) at which oil under pressure is available as a result of meshing action of the two sets of teeth.