公开(公告)号：US6085702A

公开(公告)日：2000-07-11

申请号：US46661

申请日：1998-03-23

申请人： Kazumasa Ito

发明人： Kazumasa Ito

IPC分类号： B63H21/14 ,  B63B35/73 ,  F01M3/02 ,  F01M9/12 ,  F02M19/00 ,  F01M33/00

CPC分类号： F01M3/02

摘要： A lubrication system for an engine having a fuel system including a floatless carburetor is disclosed. The engine has an intake system through which air is supplied to the engine, the carburetor associated with the intake system and arranged to deliver fuel into air passing through an air flow passage therethrough. The carburetor has a main fuel supply line extending between a fuel supply chamber and a discharge to the air flow passage, a first one-way type valve arranged along the main fuel supply line, a diaphragm dividing the fuel supply chamber from an air chamber, the air chamber coupled to an air source whereby movement of the diaphragm causes fuel to be discharged through the main fuel supply line to the air passage. The lubrication system is arranged to deliver lubricant from a supply through a lubricant supply line communicating with the main fuel supply line between the first one-way type valve and the discharge.

摘要翻译： 公开了一种具有包括无浮子化油器的燃料系统的发动机的润滑系统。 发动机具有进气系统，通过该进气系统将空气供应到发动机，与进气系统相关联的化油器并且布置成将燃料输送到通过其中的空气流动通道的空气中。 所述化油器具有在燃料供给室与所述空气流动通道的排出口之间延伸的主燃料供给管线，沿着所述主燃料供给管路配置的第一单向阀，将所述燃料供给室与空气室分隔开的隔膜， 空气室联接到空气源，由此隔膜的移动使得燃料通过主燃料供应管线排出到空气通道。 润滑系统设置成通过与第一单向阀和排出口之间的主燃料供应管线连通的润滑剂供给管线从供应源输送润滑剂。

公开(公告)号：US5701856A

公开(公告)日：1997-12-30

申请号：US755898

申请日：1996-12-02

申请人： Toshihiro Nagano ,  Yoshiaki Sato ,  Jun Nishimori ,  Fusao Tachibana

发明人： Toshihiro Nagano ,  Yoshiaki Sato ,  Jun Nishimori ,  Fusao Tachibana

IPC分类号： F01M3/00 ,  F02B75/02 ,  F02M17/04 ,  F02M19/00 ,  F01M33/00

CPC分类号： F01M3/00 ,  F02M17/04 ,  F02B2075/025

摘要： A separate oiling type two cycle engine having a diaphragm type float-less carburetor including a metering chamber and a needle valve comprises a fuel reservoir for reserving fuel, a fuel supply port provided at the fuel reservoir for supplying fuel into the fuel reservoir, a fuel passage for connecting the fuel reservoir with the needle valve, a venturi provided immediately upstream of the needle valve, an oil discharge port provided adjacent to the inlet of the venturi for discharging lubricating oil therethrough so as to mix lubricating oil with fuel, and a fuel return port provided at the higher position than the fuel supply port for returning fuel to a fuel tank. Since lubricating oil is supplied to almost all major components of the carburetor, carburetor components such as a choke valve, a throttle valve, fuel passages, jets, metering needles, nozzles and the like can be prevented from being corroded, rusted or clogged by salt water contained in fuel.

摘要翻译： 具有隔膜式无浮子化油器的单独的上油型二循环发动机，其包括计量室和针阀，包括用于储存燃料的燃料储存器，设置在燃料储存器处以向燃料箱供应燃料的燃料供给口，燃料 用于将燃料储存器与针阀连接的通道，紧邻针阀上游设置的文氏管，设置在文丘里管入口附近的排油口，用于排出润滑油，以将润滑油与燃料混合，并将燃料 设置在比用于将​​燃料返回到燃料箱的燃料供给口的高位置的返回口。 由于润滑油被提供给化油器的几乎所有主要部件，所以可以防止化油器部件如阻风阀，节流阀，燃料通道，喷嘴，计量针，喷嘴等被盐腐蚀，生锈或堵塞 燃料中含有的水。