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    • 4. 发明公开
    • KRAFTSTOFF-FÖRDEREINRICHTUNG FÜR EINE BRENNKRAFTMASCHINE
    • KRAFTSTOFF-FÖRDEREINRICHTUNGFÜREINE BRENNKRAFTMASCHINE
    • EP2635811A1
    • 2013-09-11
    • EP11767008.3
    • 2011-10-10
    • Robert Bosch GmbH
    • LUCARELLI, FrancescoKOENIG, Thomas
    • F04B1/04F04B53/00F04B53/16F04B53/22F02M59/02F02M59/06F16J15/32
    • F04B1/0448F02M59/44F04B1/0443F04B53/006F04B53/16F04B53/22F16J15/54
    • The invention relates to a fuel conveyor for a combustion engine, comprising a housing (1) for receiving at least one conveyor module, and a drive shaft (2) for driving said conveyor module, the drive shaft (2) being rotatably mounted in a bearing bore (3) of the housing (1) and at least two sealing arrangements (4, 5), axially spaced apart from one another, being arranged inside said bearing bore (3) to seal off a fuel-guiding inner region (6) from a lubricant-guiding outer region (7). According to the invention, the sealing arrangement (5) that is effective against the lubricant-guiding region (7) is arranged on a shaft section (a) of the drive shaft (2) designed to be at least partially tapered such that said shaft section (a) has an outer diameter (D
      2 ) smaller than the outer diameter (D
      1 ) of the drive shaft (2) in the region of the receptacle of the sealing arrangement (5) effective against the fuel-guiding region (6).
    • 本发明涉及一种用于燃烧发动机的燃料输送机,其包括用于接收至少一个输送机模块的壳体(1)和用于驱动所述输送机模块的驱动轴(2),所述驱动轴(2)可旋转地安装在 (1)的轴承孔(3)和彼此轴向间隔开的至少两个密封装置(4,5)布置在所述轴承孔(3)内以密封燃料引导内部区域(6) )从润滑剂引导的外部区域(7)流出。 根据本发明,对润滑剂引导区域(7)有效的密封装置(5)布置在驱动轴(2)的轴部分(a)上,该轴部分设计成至少部分地成锥形,使得所述轴 部分(a)在密封装置(5)的容纳区域中具有小于驱动轴(2)的外径(D 1)的外径(D 2),该外径有效抵靠燃料引导区域 )。
    • 8. 发明公开
    • Sealing apparatus
    • Versiegelungsvorrichtung
    • EP1818514A1
    • 2007-08-15
    • EP07002043.3
    • 2007-01-31
    • Carl Freudenberg KG
    • Numata, Tomoyuki, c/o Nok Corporation
    • F01L3/08
    • F16J15/002F01L3/08F01L2101/00F16J15/3232F16J15/54
    • The invention provides a sealing apparatus in which a first valve stem seal installed to a lubricating oil chamber side of a valve guide does not fall away from the valve guide even by a suction air pressurized to a high pressure in a port side, and a seal lip of the valve stem seal is not deformed. In a sealing apparatus (1) provided with a first valve stem seal (30) installed to an end portion in a lubricating oil chamber (12) side of a valve guide (14), and a second valve stem seal (40) installed to an end portion in a port (11) side, the second valve stem seal (40) is provided with a reinforcing ring (41) and a seal portion (44) in which a leading end portion of a seal lip (43) brought into slidable contact with a valve stem (20) is pinched toward the port (11) side, and is installed to an outer peripheral side of the valve guide (14).
    • 本发明提供了一种密封装置,其中安装在阀导向件的润滑油室一侧的第一阀杆密封件即使在端口侧被加压到高压的抽吸空气也不会从阀导向件脱落,并且密封件 阀杆密封唇缘不变形。 在设置有安装在阀导向件(14)的润滑油室(12)侧的端部的第一阀杆密封件(30)的密封装置(1)中,以及第二阀杆密封件(40) 在端口(11)侧的端部,第二阀杆密封件(40)设置有加强环(41)和密封部分(44),密封唇(43)的前端部分 与阀杆(20)的滑动接触被朝向端口(11)侧挤压,并安装在阀导向件(14)的外周侧。