-
11.发明授权
公开(公告)号：US4753201A
公开(公告)日：1988-06-28
申请号：US802773
申请日：1985-11-27
Applicant: Koichi Fukuo , Masatoshi Chosa , Akio Kazama , Nobuo Anno , Yukio Kusakabe
Inventor： Koichi Fukuo , Masatoshi Chosa , Akio Kazama , Nobuo Anno , Yukio Kusakabe
CPC classification number: F02F1/108 , F01M11/02 , F02F7/0012 , F02F7/0053 , F02B2075/1812 , F02F2007/0056 , F05C2201/021 , F05C2201/0436 , F05C2251/042
Abstract: A crankshaft supporting structure in a multicylinder internal combustion engine has a cylinder block made of a light alloy and including a cylinder housing and a crankcase having a plurality of spaced journal walls. A plurality of spaced bearing caps made of an iron alloy are coupled respectively to the journal walls. A crankshaft is rotatably supported in bearing holes defined by the journal walls and the bearing caps. A bridge made of a light alloy extends across the bearing caps and is coupled to the bearing caps. The bearing caps and the bridge are fastened together to the journal walls by connecting bolts disposed one on each side of the crankshaft. The bridge has a main portion defining a main gallery extending longitudinally therethrough and a plurality of legs coupled to the bearing caps, respectively. The bearing caps and the legs jointly define branch oil passages communicating with the main gallery and the bearing holes. In one embodiment, each of the oil passages has a longitudinal central axis displaced transversely from the central axis of the cylinder housing passing through the center of the crankshaft.
Abstract translation: 多缸内燃机中的曲轴支撑结构具有由轻合金制成的气缸体，其包括具有多个隔开的轴颈壁的气缸壳体和曲轴箱。 由铁合金制成的多个间隔开的轴承盖分别连接到轴颈壁上。 曲轴被可旋转地支撑在由轴颈壁和轴承盖限定的轴承孔中。 由轻质合金制成的桥梁延伸穿过轴承盖并联接到轴承盖。 轴承盖和桥通过设置在曲轴两侧的连接螺栓固定在轴颈壁上。 该桥具有限定纵向延伸穿过其中的主画廊的主要部分和分别与轴承盖连接的多个腿。 轴承盖和支腿共同限定与主画廊和轴承孔连通的分支油路。 在一个实施例中，每个油通道具有横向于通过曲轴中心的气缸壳体的中心轴线的纵向中心轴线。
-
12.发明授权
公开(公告)号：US4721077A
公开(公告)日：1988-01-26
申请号：US802583
申请日：1985-11-27
Applicant: Koichi Fukuo , Masatoshi Chosa
Inventor： Koichi Fukuo , Masatoshi Chosa
CPC classification number: F02F7/0053 , F01M11/02 , F02F1/108 , F02F7/0012 , F02F2007/0063 , F05C2201/021 , F05C2201/0436
Abstract: A crankshaft support for a multicylinder internal combustion engine employing a plurality of bearing caps fitted in recesses in journal walls in the cylinder block and connected by pairs of bolts extending vertically through each bearing cap into the journal wall. An additional pair of bolts extend horizontally from each side of the cylinder block to connect the skirt portions to the bearing caps. A bridge extends the length the engine over the bearing caps and is connected thereto by another pair of vertical bolts.
Abstract translation: 一种用于多缸内燃机的曲轴支撑件，其采用多个轴承盖，其安装在气缸体的轴颈壁中的凹槽中，并且通过垂直延伸穿过每个轴承盖进入轴颈壁的螺栓连接。 另外一对螺栓从气缸体的每一侧水平地延伸，以将裙部连接到轴承盖。 桥将发动机的长度延伸到轴承盖上，并通过另一对垂直螺栓与其连接。
-
Patent Agency Ranking
公开(公告)号：US4622933A
公开(公告)日：1986-11-18
申请号：US808842
申请日：1985-12-13
Applicant: Koichi Fukuo , Hiroki Yamamoto
Inventor： Koichi Fukuo , Hiroki Yamamoto
CPC classification number: F16C3/14 , F01M1/06 , F02F7/0012
Abstract: There is disclosed a lubricant feed system for use in a journal of a crankshaft comprising first bearing supporting portions formed in a cylinder block, each having a peripheral surface, second bearing supporting portions formed in caps, each having a peripheral surface, first bearings in the form of half shells arranged on the peripheral surfaces of the first bearing supporting portions, second bearings in the form of half shells arranged on the peripheral surfaces of the second bearing supporting portions and an oil main gallery. In this arrangement, annular grooves are formed on the peripheral surfaces of the first and second bearing supporting portions and oil grooves are circumferentially formed at the inner peripheral surfaces of the first bearings. Apertures are formed at the first bearings to communicate the annular grooves with the oil grooves. The inner peripheral surfaces of the second bearings are made flat. Further, a bridge is mounted on the undersides of the bearing caps and the oil main gallery is provided in the bridge. The oil main gallery is communicated with the annular grooves in the second bearing supporting portions. Oil in the oil main gallery is fed to the annular grooves to directly cool the second bearings to which explosive loads are applied.
Abstract translation: 公开了一种在曲轴的轴颈中使用的润滑剂供给系统，包括形成在气缸体中的第一轴承支撑部分，每个轴承支撑部分具有圆周表面，形成在盖中的第二轴承支撑部分，每个具有圆周表面， 布置在第一轴承支撑部分的周边表面上的半壳的形式，布置在第二轴承支撑部分的周边表面上的半壳形式的第二轴承和油主画廊。 在这种布置中，在第一和第二轴承支撑部分的周边表面上形成环形槽，在第一轴承的内周表面周向形成有油槽。 在第一轴承处形成孔，以将环形槽与油槽连通。 第二轴承的内周面平坦。 此外，桥接件安装在轴承盖的下侧，并且油主画廊设置在桥中。 油主画廊与第二轴承支撑部分中的环形槽连通。 油主画廊中的油被馈送到环形槽，以直接冷却施加炸药负荷的第二轴承。
-
公开(公告)号：US5460130A
公开(公告)日：1995-10-24
申请号：US183084
申请日：1994-01-18
Applicant: Masami Fukuzawa , Koichi Fukuo , Yoshihiro Fujiyoshi , Hidemi Arai , Shinichi Nishida , Chihaya Sugimoto , Takashi Sugai , Kazuaki Shimoyama , Masayuki Kobayashi
Inventor： Masami Fukuzawa , Koichi Fukuo , Yoshihiro Fujiyoshi , Hidemi Arai , Shinichi Nishida , Chihaya Sugimoto , Takashi Sugai , Kazuaki Shimoyama , Masayuki Kobayashi
CPC classification number: F01L1/267 , F01L1/053 , F02B2275/20
Abstract: An SOHC-type valve operating system in an internal combustion engine having a single cam shaft commonly provided for a pair of intake valves and a pair of exhaust valves. A plurality of intake valve driving members are rockably disposed between the cam shaft and the pair of intake valves and have an operative-connection switchover mechanism for switching over the connection and disconnection of the intake valve driving members. A pair of exhaust valve driving members are rockably disposed between the cam shaft and the pair of exhaust valves and independently operate each of the exhaust valves. The operative-connection switchover mechanism includes a switchover pin movable between a position for operatively connecting adjacent intake valve driving members and a position for releasing such connection, which pin is slidably mounted in a cylindrical sleeve secured to the intake valve driving members for guiding the movement of the switchover pin. The cylindrical sleeve also rotatably supports a cylindrical rotor in rolling contact with a cam provided on the cam shaft. The operative-connection switchover mechanism is disposed on the opposite side of the intake valves with respect to the rocking axis of the intake valve driving member whereby space for disposing a component such as an ignition plug is available on the intake side of the engine.
Abstract translation: 一种内燃机中的SOHC型阀操作系统，具有通常设置在一对进气门和一对排气阀上的单个凸轮轴。 多个进气门驱动构件可摆动地设置在凸轮轴和一对进气门之间，并具有用于切换进气门驱动构件的连接和断开的操作连接切换机构。 一对排气门驱动构件可摆动地设置在凸轮轴和一对排气门之间，并独立地操作每个排气门。 操作连接切换机构包括可在相邻的进气门驱动构件可操作地连接的位置和用于释放这种连接的位置之间移动的切换销，该销可滑动地安装在固定到进气阀驱动构件的圆柱形套筒中，用于引导运动 的切换针。 圆柱形套筒还可旋转地支撑与设置在凸轮轴上的凸轮滚动接触的圆柱形转子。 操作连接切换机构相对于进气门驱动部件的摆动轴线设置在进气门的相对侧，由此在发动机的进气侧设置有用于设置火花塞等部件的空间。
-
公开(公告)号：US4942854A
公开(公告)日：1990-07-24
申请号：US317771
申请日：1989-03-02
Applicant: Hiroshi Shirai , Takashi Tatsumi , Hisashi Kanda , Koichi Fukuo , Masahiko Motsumoto , Toshiaki Hiro
Inventor： Hiroshi Shirai , Takashi Tatsumi , Hisashi Kanda , Koichi Fukuo , Masahiko Motsumoto , Toshiaki Hiro
IPC: F01L1/08
CPC classification number: F01L1/08
Abstract: A valve operating device for operating an intake or exhaust valve in an internal combustion engine includes a cam having a cam profile including a valve lifting portion for applying a force to open the engine valve and a base circle portion for allowing the valve to be closed, the cam profile having a valve opening point and a valve closing point between the valve lifting portion and the base circle portion, a cam follower slidably engaging the cam, and a hydraulic lash adjuster combined with the cam follower for eliminating any gap between the means and the engine valve. The base circle portion has a gradient cam surface or a combination of different gradient cam surfaces for canceling out valve-lifting radial displacement of the base circle portion.
-
16.发明授权
公开(公告)号：US4926804A
公开(公告)日：1990-05-22
申请号：US356915
申请日：1989-05-23
Applicant: Koichi Fukuo
Inventor： Koichi Fukuo
CPC classification number: F01L1/267
Abstract: A mechanism for switching valve operating modes in an internal combustion engine that has a valve operating mechanism with high- and low-speed cams having different cam profiles corresponding to rotational speed ranges of the engine, a pair of valves disposed in intake or exhaust ports of a combustion chamber and a normally urged to be closed by spring means, a directly moving transmitting member for imparting the lift of the low-speed cam to the valve, a pair of idling transmitting members for transmitting the lift of said high-speed cam on the pair of valves and a selective coupling mechanism for selectively connecting the transmitting members when mutually adjacent portions of the transmitting members are in a predetermined positional relationship. The diameter of the base-circle portion of the high-speed cam is smaller than the diameter of the base-circle portion of the low-speed cam whereby the selective coupling mechanism may be readily operated to connect the transmitting members without compressing the valve springs.
-
公开(公告)号：US4807574A
公开(公告)日：1989-02-28
申请号：US137954
申请日：1987-12-24
Applicant: Mitsuhiro Shibata , Kazuhide Kumagai , Koichi Fukuo , Toshiaki Hiro , Masahiko Matsumoto
Inventor： Mitsuhiro Shibata , Kazuhide Kumagai , Koichi Fukuo , Toshiaki Hiro , Masahiko Matsumoto
CPC classification number: F01M1/16 , F01L1/26 , F01L1/267 , F01M9/101 , F02F1/4214 , F02F2001/247
Abstract: A valve operating mechanism for an internal combustion engine has a low-speed cam for operating the intake or exhaust valves during low-speed operation of the engine and a high-speed cam for operating the intake or exhaust valves during high-speed operation of the engine. A low-speed lubricating oil passage is provided for supplying lubricating oil to the low-speed cam and a separate high-speed lubricating oil passage is provided for supplying lubricating oil to the high-speed cam. A control valve is connected to said low-speed and high-speed lubricating oil passages for selectively supplying maximum oil pressure to the high-speed lubricating oil passage during high-speed operation while restricting the rate of flow of oil during low-speed operation of the engine and supplying maximum oil pressure to the low-speed lubricating oil passage during low-speed operation of the engine while restricting or eliminating the oil supplied thereto during high-speed operation.
-
-
-
-
-
-
Search Results
17
records
(took 0.024 seconds)
