公开(公告)号：US5887424A

公开(公告)日：1999-03-30

申请号：US731918

申请日：1996-10-22

申请人： Kazuhisa Kuroshita

发明人： Kazuhisa Kuroshita

IPC分类号： F01N3/30 ,  F01N3/28 ,  F01N3/34

CPC分类号： B01F3/02 ,  B01F5/0413 ,  B01F5/0428 ,  F01N3/28 ,  F01N3/34 ,  Y02T10/20

摘要： An exhaust apparatus for an engine is provided, which is capable of efficiently sucking in secondary air for a catalyst by utilizing an ejector (entraining) effect caused by the exhaust gases and which has a simple and inexpensive structure. Exhaust gases from the engine are introduced into a main muffler body, are expanded and muffled by passage through a plurality of silencer chambers, and are also passed through a catalyst and scrubbed thereby in a state in which they are mixed with secondary air introduced from the exterior. A secondary air introduction pipe for introducing secondary air is provided in a first-stage silencer chamber. A mixing pipe is provided into which are introduced the secondary air introduced from the secondary air introduction pipe and the exhaust gases from the first-stage silencer chamber. An ejector (entraining) portion for sucking in the secondary air from the secondary air introduction pipe is formed from an outlet of the secondary air introduction pipe and an inlet of the mixing pipe.

摘要翻译： 提供一种用于发动机的排气装置，其能够通过利用由排气引起的喷射器（夹带）效应而有效地吸入用于催化剂的二次空气，并且具有简单且廉价的结构。 来自发动机的废气被引入主消声器主体中，通过多个消音器室而膨胀和消声，并且在它们与从其中引入的二次空气混合的状态下也通过催化剂并被洗涤 外观。 在第一级消音室中设置有用于引入二次空气的二次空气引入管。 提供混合管，其中引入从二次空气引入管引入的二次空气和来自第一级消音器室的废气。 从二次空气引入管的出口和混合管的入口形成用于从二次空气导入管吸入二次空气的喷射器（夹带）部。

公开(公告)号：US5398646A

公开(公告)日：1995-03-21

申请号：US118655

申请日：1993-09-10

申请人： Kazuhisa Kuroshita ,  Shinji Shuto

发明人： Kazuhisa Kuroshita ,  Shinji Shuto

IPC分类号： F02B25/16 ,  F02B75/02 ,  F02F1/22

CPC分类号： F02F1/22 ,  F02B2075/025

摘要： An exhaust port is formed in the wall of a cylinder of a 2-cycle engine. At least one of the portions of the cylinder wall which define two vertically opposing edges of the exhaust port is projected at the circumferentially mid portion towards the opposing edge so as to provide a piston guide surface which conforms with the inner peripheral surface of the cylinder and which extends in such a manner as to reduce the axial height of the exhaust port. The piston guide surface serves to suppress vibration and noise caused when an upwardly moving piston falls into the exhaust port.

摘要翻译： 排气口形成在2冲程发动机气缸的壁上。 限定排气口的两个垂直相对的边缘的气缸壁的至少一部分在周向中间部分处朝向相对的边缘突出，以便提供与气缸的内周表面一致的活塞引导表面，以及 其以减小排气口的轴向高度的方式延伸。 活塞引导面用于抑制向上移动的活塞落入排气口时引起的振动和噪音。

公开(公告)号：US06588451B2

公开(公告)日：2003-07-08

申请号：US09798987

申请日：2001-03-06

申请人： Kazuhisa Kuroshita ,  Yukio Asakura ,  Atsufumi Ozaki

发明人： Kazuhisa Kuroshita ,  Yukio Asakura ,  Atsufumi Ozaki

IPC分类号： F17C1300

CPC分类号： F02M37/103 ,  B63B17/0027 ,  B63B35/731 ,  B63H21/38 ,  Y10T137/86035 ,  Y10T137/86348

摘要： A holding structure for holding a device on a fuel tank can be manufactured by small man-hours, and is simple in construction and excellent in vibration isolating performance. The holding structure holds a device (11) inserted in a fuel tank (10) on the fuel tank (10). The holding structure includes a holding tube (19) formed integrally with the fuel tank (10) so as to surround an opening (18) formed in the fuel tank (10), an elastic boot (21) put on the holding tube (19) so as to be in close contact with the outer circumference (19a) of the holding tube (19) and the outer circumference (15a) of a part of the device (11), extending outside from the holding tube (19), and a fastening device (22, 23) for fastening the elastic boot (21) to the respective outer circumferences (19a, 15a) of the holding tube (19) and the device (11).

摘要翻译： 用于在燃料箱上保持装置的保持结构可以通过小时制造，结构简单，隔振性能优异。 保持结构保持插入在燃料箱（10）上的燃料箱（10）中的装置（11）。 保持结构包括与燃料箱（10）一体地形成以围绕形成在燃料箱（10）中的开口（18）的保持管（19），放置在保持管（19）上的弹性靴 ）与保持管（19）的外周（19a）和装置（11）的从保持管（19）向外延伸的一部分的外周（15a）紧密接触，以及 用于将弹性靴（21）紧固到保持管（19）和装置（11）的相应外周（19a，15a）的紧固装置（22,23）。