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    • 2. 发明公开
    • 고압연료펌프 및 고압연료펌프용 시일 시스템
    • 高压燃油泵的高压燃油泵和密封系统
    • KR1020080084850A
    • 2008-09-19
    • KR1020087019078
    • 2006-12-14
    • 엔오케이 가부시키가이샤가부시키가이샤 덴소
    • 나카야마,주니치에구치,노부유키이나무라,타미오하마모토,코키치이노우에,히로시
    • F02M59/44F04B53/02
    • F04B53/02F02M59/102F02M59/442F04B53/04F04B53/164
    • A high-pressure fuel pump with seal system that is usable under the conditions of "high speed", "high pressure" and "resistance to fuel oil". There is provided a high-pressure fuel pump comprising an axle capable of reciprocating motion in the pump and seal system (21) for separating/sealing of fuel and lubricating oil as sealing objects in a circular space within a housing having the axle passing therethrough, wherein the seal system (21) consists of a combination of fuel-side seal (31) for sealing of fuel and lubricating-oil-side seal (41) for sealing of lubricating oil. The fuel-side seal (31) is composed of resin-made seal ring (32) and rubbery-elastomer-made O ring (33) for backup of the seal ring (32). The lubricating-oil-side seal (41) consists of a single body of single-lip-type oil seal (42) wherein rubbery-elastomer-made seal lip (44) fitted to metal ring (43) is arranged so as to face the lubricating oil side. The spacing between the fuel-side seal (31) and the lubricating-oil-side seal (41) is set so as to be larger than the reciprocating motion distance of the axle.
    • 具有密封系统的高压燃油泵,可在“高速”,“高压”,“耐燃油”的条件下使用。 提供了一种高压燃料泵,其包括能够在泵和密封系统(21)中往复运动的轴,用于将燃料和润滑油作为密封物体分离/密封,所述密封物体在具有穿过其中的轴的壳体内的圆形空间中, 其特征在于,所述密封系统(21)由用于密封燃料的燃料侧密封件(31)和用于密封润滑油的润滑油侧密封件(41)的组合构成。 燃料侧密封件31由用于支承密封环(32)的树脂制密封环(32)和橡胶弹性体制成的O形环(33)构成。 润滑油侧密封件(41)由单唇型油封(42)单体构成,其中装配有金属环(43)的橡胶弹性体制成的密封唇(44)被布置成面对 润滑油侧。 燃料侧密封件31和润滑油侧密封件41之间的间隔被设定为大于轴的往复运动距离。
    • 4. 发明公开
    • 립타입 시일
    • LIP型密封
    • KR1020080084987A
    • 2008-09-22
    • KR1020087015530
    • 2006-11-21
    • 엔오케이 가부시키가이샤
    • 에구치,노부유키
    • F16J15/32
    • F16J15/3236
    • A resin lip type seal having a first inner seal lip, a first outer seal lip, and a second inner seal lip that are formed integrally with each other. The first inner seal lip and the first outer seal lip have a recess opened facing the first sealed fluid side and are in slidable contact with both an operation member and a fixed member that are formed on the inner and outer peripheries of the recess. The second inner seal lip is formed on the second sealed fluid side. The second seal lip is not forcibly bent, and in addition, a reduction in an interference margin due to creep can be compensated. To achieve this construction, the second inner seal lip (14) is formed as a plate-like lip that extends obliquely in the direction radially inward toward the second sealed fluid side (B) until an inner tip (15) is in slidable contact with a shaft (2). An outer tip (16) is made to be in contact with a tapered surface (52) formed on a housing (3) or on an installation member (5) fitted in the housing (3), allowing contact surface pressure directed radially inward to act on the inner peripheral tip (15).
    • 一种具有彼此一体形成的第一内密封唇,第一外密封唇和第二内密封唇的树脂唇型密封件。 第一内部密封唇缘和第一外部密封唇缘具有面向第一密封流体侧的凹部,并且与形成在凹部的内周和外周上的操作构件和固定构件滑动接触。 第二内密封唇形成在第二密封流体侧。 第二密封唇不会被强制弯曲,另外还可以补偿由于蠕变引起的干涉余量的减少。 为了实现这种结构,第二内密封唇(14)形成为在径向向内朝向第二密封流体侧(B)倾斜延伸的板状唇部,直到内尖端(15)能够与 轴(2)。 外部尖端(16)制成与形成在壳体(3)上的锥形表面(52)或安装在壳体(3)中的安装构件(5)上接触,允许接触表面压力径向向内指向 作用在内周末端(15)上。
    • 6. 发明授权
    • 립타입 시일
    • LIP型密封
    • KR101355153B1
    • 2014-01-27
    • KR1020087015530
    • 2006-11-21
    • 엔오케이 가부시키가이샤
    • 에구치,노부유키
    • F16J15/32
    • F16J15/3236
    • 본 발명은, 제 1 밀봉대상 유체측에 면하여 개구된 오목부를 가지고, 상기 오목부의 내외주에 설치된 작동부재 및 고정부재에 슬라이딩 접촉하는 제 1 내주 시일립 및 제 1 외주 시일립과, 제 2 밀봉대상 유체측에 설치된 제 2 내주 시일립이 일체로 성형되어 있는 수지제 립타입 시일로서, 제 2 내주 시일립이 강제적으로 굴곡되어 있지 않을 뿐만 아니라, 크리프에 의한 체결여유의 저하를 보충할 수 있는 시일을 제공하는 것이다. 이러한 목적을 달성하기 위해, 제 2 내주 시일립(14)을 제 2 밀봉대상 유체측(B)을 향해 내주방향으로 사행하여 연장되는 내주측 선단부(15)가 축(2)에 슬라이딩 접촉하는 판형상의 립으로 하고, 외주측 선단부(16)를 하우징(3) 혹은 하우징(3)에 끼움결합되는 장착부재(5)에 형성된 테이퍼면(52)에 맞닿게 하여, 내주측 선단부(15)에 내주방향의 접촉면압이 작용하도록 하였다.