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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
    • KR1020080019706A
    • 2008-03-04
    • KR1020087000945
    • 2006-05-24
    • 엔오케이 가부시키가이샤
    • 콘도,요스케타나베,야스아키나카야마,쥰이치이나무라,타미오미즈노야,코이치오타니,타케오하마모토,코키치
    • F16J15/32
    • F16J15/3244F16J15/3228F16J15/3236
    • A resin lip type seal (1) capable of increasing safety against rupture by reducing the rigidity of a plate-like lip (4) bent about the tip point A of a roughly wedge-shaped recessed part (8) to reduce stress concentration at the point A, suppressing the lowering of sealability due to a reduction in the creep of the lip, and increasing the follow-up capability of the lip to the eccentricity of its axis. Slits are formed in the slidable contact surface (41) of the plate-like lip (4) or/and the anti-slidable contact surface (42) thereof. Slits (7) are also formed in the sloped slidable contact surface (21) of the inner lip (2) of the seal. Then, the ratio of the portion of each of the slidable contact surfaces where the slits (7) are formed is set to 1/2 or more of each of the surface areas of the slidable contact surfaces (21, 41, 42). ® KIPO & WIPO 2008
    • 一种树脂唇形密封件(1),其能够通过降低围绕大致楔形凹部(8)的尖端点A弯曲的板状唇缘(4)的刚性来提高安全性,以减少其破裂的安全性,以减少在 点A,抑制由于唇部的蠕变减小引起的密封性的降低,并且增加唇缘对其轴线偏心的随动能力。 在板状唇部(4)的滑动接触表面(41)或/或其可滑动的接触表面(42)上形成狭缝。 狭缝(7)也形成在密封件的内唇缘(2)的倾斜滑动接触表面(21)中。 然后,将形成有狭缝(7)的可滑动接触面的各部分的比例设定为可滑动接触面(21,41,42)的各表面积的1/2以上。 ®KIPO&WIPO 2008