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1. 发明专利

JP2012184761A Hydraulic pump, in particular fuel pump 有权
标题翻译：液压泵，特殊燃油泵
公开(公告)号：JP2012184761A
公开(公告)日：2012-09-27
申请号：JP2012035345
申请日：2012-02-21
申请人： Omt Officine Meccaniche Torino Spa , オエンメティ・オフィチネ・メカニケ・トリノ・ソシエタ・ペル・アチオニOMT Officine Meccaniche Torino S.p.A.
发明人： NEGRI CLAUDIO
IPC分类号： F04B49/06 , F04B53/10
CPC分类号： F02M59/462 , F02M59/365 , F02M63/0029 , F04B49/08 , F04B49/22 , F04B49/246 , F04B2201/06012 , F04B2205/05 , F04B2205/06
摘要： PROBLEM TO BE SOLVED: To provide a method for accurately adjusting a discharge flow rate in a fuel pump.SOLUTION: This fuel pump 1 includes an intake port 2, a discharge port 4, and cylinders 20, 22, 24. The cylinders have pistons P1, P2, P3, each piston reciprocates between the top dead center TDC and the bottom dead center BDC, and the fuel pump 1 includes discharge valves 26, 28, 30 between the cylinders and the discharge port 4, and each discharge valve has a closed position and an open position. When a pressure inside a user CR hydraulically connected to the discharge port 4 exceeds a threshold value, the fuel pump 1 maintains each discharge valve in the open position for at least a part of time wherein the piston moves from the top dead center TDC to the bottom dead center BDC.
摘要翻译：要解决的问题：提供一种用于精确地调节燃料泵中的排出流量的方法。
解决方案：该燃料泵1包括进气口2，排出口4和气缸20,22,24。气缸具有活塞P1，P2，P3，每个活塞在上止点TDC和底部死区BDC，燃料泵1包括气缸和排出口4之间的排出阀26,28,30，并且每个排出阀具有关闭位置和打开位置。当液压连接到排出口4的用户CR内的压力超过阈值时，燃料泵1将每个排出阀保持在打开位置至少一段时间，其中活塞从上止点TDC移动到下死点BDC。版权所有（C）2012，JPO＆INPIT

2. 发明专利

JP2012202408A Electronically-controlled fuel injector for large diesel engine 有权
标题翻译：用于大型柴油发动机的电子控制燃油喷射器
公开(公告)号：JP2012202408A
公开(公告)日：2012-10-22
申请号：JP2012067071
申请日：2012-03-23
申请人： Omt Officine Meccaniche Torino Spa , オエンメティ・オフィチネ・メカニケ・トリノ・ソシエタ・ペル・アチオニOMT Officine Meccaniche Torino S.p.A.
发明人： COPPO MARCO , NEGRI CLAUDIO
IPC分类号： F02M47/00 , F02M61/10
CPC分类号： F02M47/027 , F02M61/042 , F02M61/10 , F02M2200/28
摘要： PROBLEM TO BE SOLVED: To minimize a control flow rate of an electronically-controlled valve necessary to start a fuel injector and to optimize performance of an electronically-controlled fuel injector for a large diesel engine.SOLUTION: The electronically-controlled fuel injector includes a control chamber 44 in which an oil pressure in a delivery chamber 24 generates a first oil pressure force that pushes a needle 30 in a direction of an open position thereof and which is connected to a fuel supply line 26 via an inflow limiter 48 and is also connected to an exhaust line 50 via a flow limiter 52. The electronically-controlled fuel injector also includes an electronically-controlled type control valve 54 in which the oil pressure in the control chamber 44 generates a second oil pressure force that pushes the needle 30 in a direction of a closed position thereof and which selectively opens and closes oil pressure communication between the control chamber 44 and a low pressure capacity 14. The inflow limiter 48 has a variable choke 60 which can move between a choke position corresponding to a fully closed position of the needle 30 and a non-choke position corresponding to an initial opening position of the needle 30.
摘要翻译：要解决的问题：为了最小化启动燃料喷射器所需的电子控制阀的控制流量，并优化用于大型柴油发动机的电子控制燃料喷射器的性能。解决方案：电子控制的燃料喷射器包括控制室44，输送室24中的油压在其中产生第一油压力，该第一油压力将针30向打开位置的方向推动并连接到通过流入限制器48的燃料供应管线26，并且还经由流量限制器52连接到排气管路50.电子控制的燃料喷射器还包括电子控制型控制阀54，其中控制室中的油压 44产生第二油压力，其沿着关闭位置的方向推动针30，并且选择性地打开和关闭控制室44与低压容量14之间的油压连通。流入限制器48具有可变节流阀60 其可以在与针30的完全关闭位置相对应的阻塞位置与对应于针30的初始打开位置的非阻塞位置之间移动针30。版权所有（C）2013，JPO＆INPIT

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