专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

41. 发明公开

EP0694124A1 VENTURI FILTER AND FUEL INJECTION VALVE WITH A VENTURI FILTER 失效
标题翻译： WITH A喷雾雾化燃料喷射阀
公开(公告)号：EP0694124A1
公开(公告)日：1996-01-31
申请号：EP95903245.0
申请日：1994-12-20
申请人： ROBERT BOSCH GMBH
发明人： MAIER, Martin , BUCHHOLZ, Jürgen , HEYSE, Jörg , KLASKI, Michael , LIEBEMANN, Edwin , WIRTH, Klaus , THOMAS, Mathias , KROHN, Klaus-Henning , STRAETZ, Jutta , LAUTER, Stefan , DENNERLEIN, Christof , ABIDIN, Anwar
IPC分类号： F02M53 , F02M61 , F02M69
CPC分类号： F02M61/188 , F02M53/06 , F02M61/18 , F02M61/1806 , F02M61/1853 , F02M69/047 , Y10S239/23 , Y10S239/90
摘要： Fuel injection valves with venturi filters (50) for supplying fuel or fuel/gas mixtures to internal combustion engines are characterised in that they ensure a particularly high spray quality and remarkable fuel conditioning. In addition, the venturi filter (50) forms a protection screen against icing, plugging and deposits of chemical substances inside the fuel injection valve. The venturi filter (50), which has a shell-shaped, concave bulging form, is mounted downstream of at least one injection hole (15), seen in the fuel flow direction. The outer circumferential area (60) of the venturi filter (50) is cast into the protective cap (40) provided at the downstream end of the fuel injection valve. The protective cap (40) has protective teeth (62) that extend further downstream than the deepest area (56) of the venturi filter (50), in order to protect it against mechanical influences. When fuel is injected, a partial amount of fuel gathers in said deepest area (56) and forms a relatively still amount of liquid, to which new fuel is added. This arrangement allows ideal spraying of fuel in smallest droplets.

42. 发明公开

EP0683861A1 ELEKTROMAGNETISCH BETÄTIGBARES VENTIL 有权
标题翻译： ELEKTROMAGNETISCHBETÄTIGBARESVENTIL
公开(公告)号：EP0683861A1
公开(公告)日：1995-11-29
申请号：EP95900659.0
申请日：1994-11-24
申请人： ROBERT BOSCH GMBH
发明人： REITER, Ferdinand , MAIER, Martin , HEYSE, Jörg , KEIM, Norbert
IPC分类号： B23K9 , B23K10 , F02M51 , F02M61 , F02M63
CPC分类号： F02M51/0682 , F02M51/0614 , F02M51/0625 , F02M51/0664 , F02M61/166 , F02M61/168 , F02M2200/02 , F02M2200/505 , F02M2200/9038
摘要： In already known fuel injection valves, wearing parts such as the armature and the core are provided with wear-resistant layers made for example of chromium, molybdenum or nickel. If the parts of the injection valve are galvanically coated, a desired wedge-shaped distribution of the layer thicknesses is achieved that creates only a small bearing area but which is physically predetermined and practically impossible to influence. The new valve has at least one part, for example the armature (27) that has a stepped surface before the wear-resistant layer is applied. The stepped surface may be produced in a variable manner depending on the desired optimum magnetic and hydraulic properties. The ring-shaped bearing section (69) formed by the step has a defined bearing surface or contact width (b) that remains constant during the whole service life of the part, as wearing of the bearing surface in continuous duty does not cause the contact width to increase. This valve is particularly suitable for use in fuel injection systems of mixture compressing, spark-ignited internal combustion engines.
摘要翻译：在已知的燃料喷射阀中，诸如电枢和铁芯的易损件设置有例如由铬，钼或镍制成的耐磨层。如果喷射阀的部件被电镀涂层，则实现层厚的期望的楔形分布，该分布仅产生小的支承区域，但是在物理上预先确定并且实际上不可能影响。新阀具有至少一个部件，例如在施加耐磨层之前具有台阶表面的电枢（27）。取决于期望的最佳磁性和液压特性，阶梯式表面可以以可变方式产生。由台阶形成的环形支承部分（69）具有限定的支承表面或接触宽度（b），该支承表面或接触宽度在部件的整个使用寿命期间保持恒定，因为在连续工作中轴承表面的磨损不会导致接触宽度增加。该阀门特别适用于混合气压缩的火花点火式内燃机的燃油喷射系统。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式