公开(公告)号：US4915066A

公开(公告)日：1990-04-10

申请号：US379975

申请日：1989-07-14

Applicant: Naohide Koshimoto ,  Shigeki Nakatani

Inventor： Naohide Koshimoto ,  Shigeki Nakatani

IPC: F01L1/02 ,  F01L1/053 ,  F01M9/10 ,  F02B1/04 ,  F02B75/22 ,  F02F1/24 ,  F02F1/42

CPC classification number: F02F1/4214 ,  F01L1/02 ,  F01L1/024 ,  F01L1/026 ,  F01L1/0532 ,  F01M9/10 ,  F02B75/22 ,  F01L2001/0537 ,  F01M9/102 ,  F02B1/04 ,  F02B2275/06 ,  F02B2275/18 ,  F02F2001/245

Abstract: A V-type DOHC engine has first and second banks. The end of the cylinder row in the first bank on one end of the engine retracts from that of the cylinder row in the second bank. A first camshaft in each bank is driven by the crankshaft by way of a first transmission mechanism which is disposed on said one end of the engine, and the first and second camshafts in each bank are connected by a second transmission mechanism which is disposed between the first transmission mechanism and the cylinder row of the bank. The end portion of the first camshaft in the first bank on said one end of the engine is supported by a pair of bearings one disposed between the first and second transmission mechanisms and the other disposed between the second power transmission mechanism and the cylinder row in the first bank. The end portion of the second camshaft in the first bank on said one end of the engine is supported by a bearing disposed between the second transmission mechanism and the cylinder row in the first bank. The end portion of each of the camshafts in the second bank on said one end of the engine is supported by a bearing disposed between the first and second transmission mechanisms.

Abstract translation: V型DOHC发动机具有第一和第二储罐。 在发动机一端的第一组中的气缸排的端部从第二组中的气缸排的端部退出。 每个组中的第一凸轮轴由曲轴由第一传动机构驱动，第一传动机构设置在发动机的所述一端上，并且每个组中的第一和第二凸轮轴通过第二传动机构连接，第二传动机构设置在 第一传动机构和气缸排。 发动机一端的第一组中的第一凸轮轴的端部由设置在第一和第二传动机构之间的一对轴承支撑，另一个设置在第二动力传递机构和气缸排之间的另一个轴承 第一银行 在发动机的一端上的第一组中的第二凸轮轴的端部由布置在第二传动机构和第一组中的气缸排之间的轴承支撑。 发动机一端的第二组中的每个凸轮轴的端部由布置在第一和第二传动机构之间的轴承支撑。

公开(公告)号：US5133304A

公开(公告)日：1992-07-28

申请号：US710714

申请日：1991-06-07

Applicant: Naohide Koshimoto ,  Keiji Araki

Inventor： Naohide Koshimoto ,  Keiji Araki

IPC: F01P3/02 ,  F01P11/04 ,  F02B75/18 ,  F02B75/22 ,  F02F1/42

CPC classification number: F01P11/04 ,  F01P3/02 ,  F02B75/22 ,  F02F1/4214 ,  F02B2075/1824 ,  F02B2275/18 ,  F02F2007/0063

Abstract: A particular cooling water passage structure is installed in a V-type engine having two cylinder banks offset in a lengthwise direction of a crankshaft. Each bank is provided with inlet ports, provided to admit a cooling water flow. Each inlet port communicates with a lengthwise front end portion of the water jacket. The inlet port of one of the cylinder banks, which is offset forward relative to the other, is further in communication with a side portion, adjacent to the front end portion, of the water jacket. The inlet ports have apertures which open at the same location in the lengthwise direction. Piping, connected to the inlet ports, is provided in a space formed between the offset cylinder banks.

Abstract translation: 特定的冷却水通道结构安装在具有在曲轴的长度方向上偏移的两个气缸组的V型发动机中。 每个组都设有入口端口，用于承认冷却水流。 每个入口端口与水套的纵向前端部分连通。 气缸组之一相对于另一个向前偏移的入口还与水套的与前端部相邻的侧部连通。 入口具有沿长度方向在相同位置开口的孔。 连接到入口的管道设置在形成在偏置气缸组之间的空间中。

公开(公告)号：US4957079A

公开(公告)日：1990-09-18

申请号：US442794

申请日：1989-11-29

Applicant: Shigeki Nakatani ,  Naohide Koshimoto ,  Hiroyuki Sugimoto

Inventor： Shigeki Nakatani ,  Naohide Koshimoto ,  Hiroyuki Sugimoto

IPC: F01L1/04 ,  F01L1/053 ,  F01L1/12 ,  F01M9/10 ,  F02B75/18 ,  F02B75/22

CPC classification number: F01L1/0532 ,  F01M9/102 ,  F01L2001/0476 ,  F02B2075/1824 ,  F02B2275/18 ,  F02B75/22

Abstract: An overhead camshaft structure for a double overhead camshaft engine having at least three in-line cylinders and two camshafts which are formed with series of pairs of cam lobes and series of camshaft journals, respectively, and are operatively connected with each other by helical gears comprises a thrust collar formed on each camshaft, a thrust bearing formed with a thrust restrictive groove consisting of an upper half and a lower half, narrower than the upper half, for receiving therein the thrust collar, and an oil passage consisting of a radial passage portion penetrating through the thrust collar and an axial passage portion formed in each camshaft for allowing oil to pass up to each cam lobe and camshaft journal for lubrication. The radial passage is directed in parallel with a straight line connecting an axial centerline of rotation of each said camshaft and a juncture of a valve opening ramp of said cam lobe adjacent to said thrust collar.

Abstract translation: 一种用于双顶置凸轮轴发动机的顶置凸轮轴结构，其具有至少三个一字形气缸和两个凸轮轴，其分别由一对凸轮凸角和一系列凸轮轴轴颈形成，并且通过螺旋齿轮彼此可操作地连接， 形成在每个凸轮轴上的止推环，推力轴承，其形成有由上半部和下半部构成的推力限制槽，该上推力限制槽比上半部窄，用于在其中容纳止推轴环;以及油通道，其由径向通道部分 穿过止推环和形成在每个凸轮轴中的轴向通道部分，用于允许油通过每个凸轮凸轮和凸轮轴轴颈以进行润滑。 径向通道与连接每个所述凸轮轴的轴向旋转中心线和所述凸轮凸角的与所述推力环相邻的阀开口斜面的接合点的直线平行地引导。