公开(公告)号：US20140238367A1

公开(公告)日：2014-08-28

申请号：US14188159

申请日：2014-02-24

Applicant: KUBOTA Corporation

Inventor： Eishin NAKASHIMA ,  Shunji OKANO ,  Hiroyuki KAWASOE ,  Tamotsu OHASHI ,  Naoki INOUE ,  Yuki OZAKI

IPC: F02B75/12

CPC classification number: F02B75/12 ,  F02B23/08 ,  Y02T10/125

Abstract: A spark-ignition engine capable of reducing the content of hydrocarbon in exhaust gas is provided. When viewed from a direction parallel to a cylinder center axis, given a central virtual line passing a squish area maximum-width section and the center of a combustion chamber recessed section, and one area a and the other area b divided by the central virtual line, an intake valve port or an exhaust valve port is opened in one area of any opposed section of opposed sections of the combustion chamber recessed section. A spark-plug attachment hole is formed in the other area of the opposed section, such that, when viewed from the direction parallel to the cylinder center axis, a spark discharge section at a tip of a spark plug does not overlap the central virtual line.

Abstract translation: 提供能够降低废气中的烃含量的火花点火发动机。 当从平行于气缸中心轴线的方向观察时，给出通过挤压区域最大宽度部分和燃烧室凹部的中心的中心虚拟线，以及由中心虚拟线分开的一个区域a和另一个区域b 在燃烧室凹部的相对部分的相对部分的一个区域中打开进气门口或排气门口。 在相对部分的另一区域中形成火花塞附接孔，使得当从平行于气缸中心轴线的方向观察时，在火花塞尖端处的火花放电部分不与中心虚线 。

公开(公告)号：US20160290213A1

公开(公告)日：2016-10-06

申请号：US14960475

申请日：2015-12-07

Applicant: KUBOTA Corporation

Inventor： Eishin NAKASHIMA ,  Kiyoharu KIMOTO ,  Mineo TAKASAKI ,  Masaharu OHNO

IPC: F01P1/02 ,  F02B77/08 ,  F02B75/22 ,  F01P11/08

Abstract: An air-cooled engine capable of enhancing detection precision of a temperature sensor includes a crankcase, a crankshaft, a fan case, and an engine cooling fan. The installation direction of the crankshaft defines the front and rear direction. The fan case is provided in a front part of the crankcase, and the engine cooling fan is accommodated in the fan case. The air-cooled engine includes a cooling wind passage, a wind passage terminal end wall, an oil splashing device, and a temperature sensor. The wind passage terminal end wall is provided in a rear end of the cooling wind passage, the oil splashing device is provided on the rear side of the wind passage terminal end wall and formed to splash engine oil in the crankcase onto the wind passage terminal end wall, and the temperature sensor is attached to a front part of the wind passage terminal end wall.

Abstract translation: 能够提高温度传感器的检测精度的风冷发动机包括曲轴箱，曲轴，风扇壳体和发动机冷却风扇。 曲轴的安装方向限定了前后方向。 风扇壳体设置在曲轴箱的前部，发动机冷却风扇容纳在风扇壳体中。 风冷发动机包括冷却风通道，风道终端端壁，油溅装置和温度传感器。 风道终端壁设置在冷却风通道的后端，在风道终端壁的后侧设置有油溅装置，用于将曲轴箱内的发动机油溅到风道终端 并且温度传感器附接到风道终端端壁的前部。

公开(公告)号：US20170175687A1

公开(公告)日：2017-06-22

申请号：US15366142

申请日：2016-12-01

Applicant: KUBOTA Corporation

Inventor： Eishin NAKASHIMA

IPC: F02M35/10 ,  F02M35/02 ,  F02B75/22 ,  F02F1/24 ,  F01P1/06 ,  F01P5/06

CPC classification number: F02M35/10216 ,  F01P1/06 ,  F01P5/06 ,  F02B63/04 ,  F02B75/22 ,  F02F1/242 ,  F02M35/0201

Abstract: An air-cooled V-type engine includes a crankcase, a cooling fan disposed at the front end of a crankshaft, a fan casing housing the cooling fan, a pair of cylinders projecting to form a V shape from the crankcase as seen in a direction along an axial center of the crankshaft, and cylinder heads. A distributor for distributing supply fuel from a fuel supply apparatus to intake air passages of respective cylinders is disposed to straddle a contained angle place being a place between the cylinders forming the V shape. Ignition coils respectively corresponding to the cylinders are mounted on the distributor. The distributor is mounted on an air cleaner supporting plate disposed at the contained angle place.