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公开(公告)号:US20160115832A1
公开(公告)日:2016-04-28
申请号:US14893529
申请日:2013-05-24
发明人: NICOLA CELATA , MAURIZIO MORIGLIA , ANDREA MALOTTI , NICOLA NOVI
CPC分类号: F01M1/16 , F01M1/02 , F04C2/3442 , F04C14/22 , F04C14/24 , F04C2240/20 , F04C2270/185 , F04C2270/58
摘要: A lubricant pump comprises a shiftable control ring, a pump rotor rotating in the control ring, a pump outlet, and a pressure control system. The pressure control system comprises a pressure control chamber which pushes the control ring into a high pumping volume direction, an engine pressure input port connected to an engine pressure output port of an engine, a pilot chamber connected to the engine pressure input port which pushes the control ring into a low pumping volume direction, and a pressure control valve which controls a pressure in the pressure control chamber. The pressure control valve comprises a control valve plunger which opens/closes a control port to connect/disconnect the pressure control chamber to the atmospheric. The control valve plunger is fluidically connected to the engine pressure input port so that the control valve plunger is pushed by a lubricant pressure of the engine into an open position.
摘要翻译: 润滑泵包括可移动控制环,在控制环中旋转的泵转子,泵出口和压力控制系统。 压力控制系统包括将控制环推入高泵送容积方向的压力控制室,连接到发动机的发动机压力输出端口的发动机压力输入端口,连接到发动机压力输入端口的先导室,其推动 控制环变成低抽排容积方向,以及压力控制阀,其控制压力控制室中的压力。 压力控制阀包括控制阀柱塞,该控制阀柱塞打开/关闭控制端口以将压力控制室连接/断开至大气。 控制阀柱塞流体地连接到发动机压力输入端口,使得控制阀柱塞被发动机的润滑压力推动到打开位置。