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1. 发明申请

US20090178649A1 INJECTION PUMP FOR A PISTON ENGINE 有权
标题翻译：活塞式发动机注射泵
公开(公告)号：US20090178649A1
公开(公告)日：2009-07-16
申请号：US12094434
申请日：2006-11-01
申请人： Matti Koivunen , Matts Friis , Thomas Hägglund
发明人： Matti Koivunen , Matts Friis , Thomas Hägglund
IPC分类号： F02M69/54 , F04B7/04
CPC分类号： F02M59/265 , F02M59/34 , F02M2700/1358
摘要： A fuel injection pump for a piston engine, the pump comprising a cylinder element having a pressure plenum provided with an outlet chamber for removing pressurized fuel from the pressure plenum, a piston arranged to reciprocate inside the pressure plenum, an inlet chamber arranged outside the pressure plenum and at least one inlet channel arranged between the pressure plenum and the inlet chamber. At least one fill channel provided with a non-return valve is arranged between the pressure plenum and the inlet chamber, the valve allowing fuel flow from the inlet chamber to the pressure plenum but preventing flow from the pressure plenum to the inlet chamber.
摘要翻译：一种用于活塞发动机的燃料喷射泵，该泵包括一个气缸元件，该气缸元件具有一个压力增压室，该压力增压室设有一个用于从压力增压室排出加压燃料的出口室，一个设置成在压力增压室内往复运动的活塞，气室和设置在压力室和入口室之间的至少一个入口通道。设置有止回阀的至少一个填充通道布置在压力室和入口室之间，阀允许燃料从入口室流到压力室，但是防止从压力室到流入口腔的流动。

2. 发明授权

US08220321B2 Method and apparatus for testing the piston of an injection pump 有权
标题翻译：用于测试注射泵活塞的方法和装置
公开(公告)号：US08220321B2
公开(公告)日：2012-07-17
申请号：US12811569
申请日：2008-12-12
申请人： Matti Koivunen
发明人： Matti Koivunen
IPC分类号： G01M15/00
CPC分类号： F02M65/00 , F02M59/26 , F04B7/06 , F04B51/00 , F04B2201/0208 , G01M3/025
摘要： A method and an apparatus for testing the piston (2) of an injection pump of a pressure medium, the piston comprising a longitudinal groove (2b) that begins from its frontal face (2a) and extends on its side, and a screw-shaped guide edge (2c) that abuts on the envelope surface of the piston. According to the invention, the piston (2) is inserted, with its frontal face (2a) first, into a testing cylinder (1), wherein the clearance between the piston (2) and the testing cylinder (2) is tight and wherein a specific testing pressure is exerted on the envelope surface of the piston, in a limited area, from the vicinity of the said guide edge (2c) to a selected measurement point. The piston (2) is moved in the testing cylinder (1), so that the said measurement point moves, following the guide edge (2c). Changes in the testing pressure are monitored to observe any failures in the piston (2) and the said guide edge (2c).
摘要翻译：一种用于测试压力介质的注射泵的活塞（2）的方法和装置，所述活塞包括从其前表面（2a）开始并在其侧面延伸的纵向凹槽（2b）和螺旋形引导边缘（2c），其邻接在活塞的包络面上。根据本发明，活塞（2）首先将其前表面（2a）插入到测试气缸（1）中，其中活塞（2）和测试气缸（2）之间的间隙是紧的，其中特定的测试压力在有限的区域中从所述引导边缘（2c）的附近到选定的测量点施加在活塞的包络面上。活塞（2）在测试气缸（1）中移动，使得所述测量点沿着引导边缘（2c）移动。监测测试压力的变化以观察活塞（2）和所述引导边缘（2c）中的任何故障。

3. 发明申请

US20100326176A1 METHOD AND APPARATUS FOR TESTING THE PISTON OF AN INJECTION PUMP 有权
标题翻译：用于测试注射泵活塞的方法和装置
公开(公告)号：US20100326176A1
公开(公告)日：2010-12-30
申请号：US12811569
申请日：2008-12-12
申请人： Matti Koivunen
发明人： Matti Koivunen
IPC分类号： G01M15/00
CPC分类号： F02M65/00 , F02M59/26 , F04B7/06 , F04B51/00 , F04B2201/0208 , G01M3/025
摘要： A method and an apparatus for testing the piston (2) of an injection pump of a pressure medium, the piston comprising a longitudinal groove (2b) that begins from its frontal face (2a) and extends on its side, and a screw-shaped guide edge (2c) that abuts on the envelope surface of the piston. According to the invention, the piston (2) is inserted, with its frontal face (2a) first, into a testing cylinder (1), wherein the clearance between the piston (2) and the testing cylinder (2) is tight and wherein a specific testing pressure is exerted on the envelope surface of the piston, in a limited area, from the vicinity of the said guide edge (2c) to a selected measurement point. The piston (2) is moved in the testing cylinder (1), so that the said measurement point moves, following the guide edge (2c). Changes in the testing pressure are monitored to observe any failures in the piston (2) and the said guide edge (2c).
摘要翻译：一种用于测试压力介质的注射泵的活塞（2）的方法和装置，所述活塞包括从其前表面（2a）开始并在其侧面延伸的纵向凹槽（2b）和螺旋形引导边缘（2c），其邻接在活塞的包络面上。根据本发明，活塞（2）首先将其前表面（2a）插入到测试气缸（1）中，其中活塞（2）和测试气缸（2）之间的间隙是紧的，其中特定的测试压力在有限的区域中从所述引导边缘（2c）的附近到选定的测量点施加在活塞的包络面上。活塞（2）在测试气缸（1）中移动，使得所述测量点沿着引导边缘（2c）移动。监测测试压力的变化以观察活塞（2）和所述引导边缘（2c）中的任何故障。

4. 发明授权

US07603987B2 Injection pump for a piston engine 有权
标题翻译：活塞式发动机注射泵
公开(公告)号：US07603987B2
公开(公告)日：2009-10-20
申请号：US12094434
申请日：2006-11-01
申请人： Matti Koivunen , Matts Friis , Thomas Hägglund
发明人： Matti Koivunen , Matts Friis , Thomas Hägglund
IPC分类号： F02M37/04 , F04B49/00
CPC分类号： F02M59/265 , F02M59/34 , F02M2700/1358
摘要： A fuel injection pump for a piston engine, the pump comprising a cylinder element having a pressure plenum provided with an outlet chamber for removing pressurized fuel from the pressure plenum, a piston arranged to reciprocate inside the pressure plenum, an inlet chamber arranged outside the pressure plenum and at least one inlet channel arranged between the pressure plenum and the inlet chamber. At least one fill channel provided with a non-return valve is arranged between the pressure plenum and the inlet chamber, the valve allowing fuel flow from the inlet chamber to the pressure plenum but preventing flow from the pressure plenum to the inlet chamber.
摘要翻译：一种用于活塞发动机的燃料喷射泵，该泵包括一个气缸元件，该气缸元件具有一个压力增压室，该压力增压室设有一个用于从压力增压室排出加压燃料的出口室，一个设置成在压力增压室内往复运动的活塞，气室和设置在压力室和入口室之间的至少一个入口通道。设置有止回阀的至少一个填充通道布置在压力室和入口室之间，阀允许燃料从入口室流到压力室，但是防止从压力室到流入口腔的流动。

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