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1. 发明授权

US5746584A Inner cam type fuel injection pump having modified plungers 失效
标题翻译：具有改型柱塞的内凸轮式燃油喷射泵
公开(公告)号：US5746584A
公开(公告)日：1998-05-05
申请号：US611670
申请日：1996-03-06
申请人： Hisashi Nakamura , Kenichi Kubo , Jun Matsubara , Kazuaki Narikiyo , Hajime Machida , Noriyuki Abe , Tsunayoshi Motoyoshi , Atsushi Ueda
发明人： Hisashi Nakamura , Kenichi Kubo , Jun Matsubara , Kazuaki Narikiyo , Hajime Machida , Noriyuki Abe , Tsunayoshi Motoyoshi , Atsushi Ueda
IPC分类号： F02M41/14 , F04B19/00
CPC分类号： F02M41/1405
摘要： In an inner cam type injection pump, the side surface of the protruding portion of each of the plungers facing the compression space is formed in a projecting shape in the area where the plunger changes from the base end side into the front end. Specific forms of the projection include a structure constituted with slanted surfaces over a plurality of stages with different inclinations relative to the axis of the plunger, an arc form and a structure provided with a overhanging portion formed on the side surface of the protruding portion, which does not overhang the base end, projecting out from the side surface. This will prevent collision at the shoulder portion of the plunger and, consequently, prevent the deformation at the shoulder portion and ensures that plungers will not have sliding failures or become seized. Even when plungers collide, the sliding of the plungers will not be affected, ensuring that plungers do not have sliding failures or become seized.
摘要翻译：在内凸轮型喷射泵中，每个柱塞的面向压缩空间的突出部分的侧表面在柱塞从基端侧向前端改变的区域中形成为突出形状。突起的具体形式包括由相对于柱塞的轴线具有不同倾斜度的多个台阶上的倾斜表面构成的结构，弧形和设置有形成在突出部分的侧表面上的突出部分的结构，不会从基面突出，从侧面突出。这将防止在柱塞的肩部处的碰撞，从而防止在肩部处的变形，并确保柱塞不会有滑动故障或被抓住。即使柱塞碰撞，柱塞的滑动也不会受到影响，确保柱塞没有滑动故障或被抓住。

2. 发明授权

US5619971A Distributor-type fuel injection pump 失效
标题翻译：分配式燃油喷射泵
公开(公告)号：US5619971A
公开(公告)日：1997-04-15
申请号：US490839
申请日：1995-06-15
申请人： Kenichi Kubo , Tsunayoshi Motoyoshi , Jun Matsubara , Kazuaki Narikiyo , Kazuo Inoue
发明人： Kenichi Kubo , Tsunayoshi Motoyoshi , Jun Matsubara , Kazuaki Narikiyo , Kazuo Inoue
IPC分类号： F02M41/14 , F02M53/00 , F02M37/04
CPC分类号： F02M41/1405 , F02M41/1411
摘要： The inside of the housing is divided into a low pressure fuel area formed from a fuel inflow port through a feed pump 4 and a high pressure fuel area that can communicate with inflow/outflow ports for fuel. For instance, the low pressure fuel area may be formed as a path extending from the fuel intake port that communicates with the circumferential area of the front end of the rotor to the feed pump via the circumferential area of the rotor support member and a passage for inducing fuel from the high pressure fuel area to the circumferential area of the front end of the rotor may be formed between the rotor and its support member. The flow of fuel in the area where the rotor slides in contact with its support member is ensured, and oil film loss is prevented. With this, cooling and good lubrication in the rotor sliding contact area, where heat is likely to be generated, are promoted, to prevent seizure in the sliding contact area. Also, ports that open into the area where the rotor slides in contact with its support member and that communicates with the compression space may be provided in the rotor so that compressed fuel is supplied directly to the sliding contact area.
摘要翻译：壳体的内部被分为由燃料流入口形成的低压燃料区域，通过进料泵4和能与燃料的流入/出流端口连通的高压燃料区域。例如，低压燃料区域可以形成为从燃料进入口延伸的路径，其通过转子支撑构件的周向区域与转子的前端的周边区域连通到进给泵，并且通道用于可以在转子和其支撑构件之间形成从高压燃料区域引导到转子前端的圆周区域的燃料。确保转子与其支撑部件滑动的区域中的燃料流动，并且防止油膜损失。由此，促进了易于产生热量的转子滑动接触区域的冷却和良好的润滑，以防止滑动接触区域中的卡滞。此外，可以在转子中设置开口到转子滑动与其支撑构件接触并与压缩空间连通的区域的端口，使得压缩的燃料被直接供应到滑动接触区域。

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