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1. 发明申请

US20170218904A1 HIGH-PRESSURE PUMP 审中-公开
公开(公告)号：US20170218904A1
公开(公告)日：2017-08-03
申请号：US15329420
申请日：2015-11-26
申请人： Tatsuro KOGA , Yutaka MIYAMOTO , Teppei MATSUMOTO
发明人： Tatsuro KOGA , Yutaka MIYAMOTO , Teppei MATSUMOTO
IPC分类号： F02M59/36 , F02M59/46 , F04B49/24 , F02M59/02 , F04B19/22 , F04B53/10
CPC分类号： F02M59/36 , F02M37/0041 , F02M37/0052 , F02M55/04 , F02M59/025 , F02M59/34 , F02M59/366 , F02M59/46 , F04B1/0452 , F04B1/053 , F04B7/0076 , F04B11/0016 , F04B19/22 , F04B49/24 , F04B53/10 , F04B53/1002 , F04B53/14 , F04B53/16
摘要： A discharge valve of a high-pressure pump is placed in a discharge passage and is openable to enable flow of fuel from a pressurizing chamber to a discharge outlet in response to a fuel pressure difference between the pressurizing chamber side and the discharge outlet side. A relief is placed in a relief passage. The relief passage communicates between a branching portion, which is located on a side of the discharge valve where the discharge outlet is placed in the discharge passage, and a return portion, which merges with a damper chamber. The relief valve is openable to enable flow of the fuel from the branching portion to the return portion in response to a fuel pressure difference between the branching portion side and the return portion side. A discharge passage orifice is placed between the discharge valve and the branching portion in the discharge passage and constricts a flow passage cross-sectional area of the discharge passage.

2. 发明申请

US20090277978A1 FUEL INJECTION DEVICE 有权
标题翻译：燃油喷射装置
公开(公告)号：US20090277978A1
公开(公告)日：2009-11-12
申请号：US12434867
申请日：2009-05-04
申请人： Teppei MATSUMOTO , Kouichi Mochizuki
发明人： Teppei MATSUMOTO , Kouichi Mochizuki
IPC分类号： B05B1/30
CPC分类号： F02M51/0603 , F02M61/042 , F02M61/16 , F02M2200/704 , F02M2200/706 , F02M2200/707
摘要： A piston can reciprocate in a piston guide cylinder in an axial direction and has a cavity on a piezo driver side thereof. If the piezo driver is energized, a tip of a projecting section of a pushing member pushes a bottom wall of the piston defining the cavity. If fuel pressure of a pressure control chamber increases via a pressurization chamber and a communication passage due to pressurization by the piston, a needle moves in a valve-opening direction against a first compression coil spring. Since the piston has the cavity, a movable mass of the piston is reduced while securing axial length of a sliding section. Thus, fuel leak from the sliding section between the piston and the piston guide cylinder can be suppressed, and an inertial resistance caused in the piston can be reduced.
摘要翻译：活塞可以沿着轴向在活塞导向圆筒中往复运动，并且在压电驱动器侧具有空腔。如果压电驱动器通电，则推动构件的突出部分的尖端推动限定空腔的活塞的底壁。如果压力控制室的燃料压力由于通过活塞的加压而经由加压室和连通通道而增加，则针沿着阀打开方向抵靠第一压缩螺旋弹簧移动。由于活塞具有空腔，所以可以确保活塞的可移动质量，同时确保滑动部分的轴向长度。因此，可以抑制从活塞和活塞引导筒之间的滑动部分的燃料泄漏，并且可以降低在活塞中产生的惯性阻力。

3. 发明申请

US20120195780A1 HIGH PRESSURE PUMP 有权
标题翻译：高压泵
公开(公告)号：US20120195780A1
公开(公告)日：2012-08-02
申请号：US13360476
申请日：2012-01-27
申请人： Teppei MATSUMOTO , Masatoshi Kuroyanagi , Osamu Hishinuma
发明人： Teppei MATSUMOTO , Masatoshi Kuroyanagi , Osamu Hishinuma
IPC分类号： F04B53/10
CPC分类号： F04B11/0033 , F02M37/06 , F02M59/02 , F02M59/102 , F02M59/46 , F02M59/48 , F04B1/0404 , F04B11/0016 , F04B53/007 , F04B53/143 , F04B53/16 , F04B53/162 , F04B53/22
摘要： A cylinder is configured into a bottomed tubular form and includes an inner peripheral wall, an inner bottom wall, an outer peripheral wall and an intake hole and a discharge hole. The inner peripheral wall slidably guides the plunger. The intake hole and the discharge hole communicate between the inner peripheral wall and the outer peripheral wall. A pump housing includes a cylinder receiving hole that includes an inner peripheral wall, into which the cylinder is inserted. A pressurizing chamber is formed by the inner peripheral wall and the inner bottom wall of the cylinder and a distal end outer wall of the plunger.
摘要翻译：圆筒构造成有底的管状，并且包括内周壁，内底壁，外周壁和进气孔以及排出孔。内周壁滑动地引导柱塞。进气孔和排出孔在内周壁和外周壁之间连通。泵壳体包括气缸容纳孔，该气缸容纳孔包括内圆周壁，气缸插入其中。加压室由圆筒的内周壁和内底壁以及柱塞的远端外壁形成。

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