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    • 41. 发明授权
    • 내연기관
    • KR100992057B1
    • 2010-11-05
    • KR1020040039872
    • 2004-06-02
    • 만 디젤 앤 터보 에스이
    • 에일츠페터
    • F02M61/10
    • F02M43/04F02M43/02F02M59/462
    • 분사 시스템(1)에 의해 종래의 연료 및 이것을 부분적으로 대체하는 오리멀젼(ormulsion)이 제공될 수 있는 내연기관에 있어서, 상기 오리멀젼과 분사 시스템(1) 부품의 접촉 및 그에 따른 마모 문제를 최소로 줄이기 위해, 종래의 연료용 압력원(3)이 반대 방향의 체크 밸브(23, 24)를 구비한 2개의 평행한 유동 경로(20, 21)를 통해 연료관(16)에 연결되고, 상기 연료관(16)은 분사 노즐 근방에서 오리멀젼 관(17)에 연결되며, 상기 오리멀젼 관(17)은 순방향으로 개방하는 체크 밸브(25)를 구비하고 내연기관의 사이클로 활성화 가능한 오리멀젼용 압력원(7)으로부터 분기되며, 상기 압력원(7)의 압력은 오리멀젼 관(17)에 배치된 체크 밸브(25) 및 종래의 연료용 압력원(3)에 배치된, 역류 방향으로 개방하는 체크 밸브(24)의 개방 압력보다 크고, 노즐 니들(11)의 개방 압력보다 작게 한다.
    • 43. 发明公开
    • 특히 엔진의 연료 분사 장치용 고압 펌프
    • 高压泵,特别是内燃机燃油喷射装置
    • KR1020060127128A
    • 2006-12-11
    • KR1020067016092
    • 2005-01-13
    • 로베르트 보쉬 게엠베하
    • 로드리게스-아마야네스토르멘니켄미햐엘브렌들레페터브레도우팔코
    • F02M59/46F04B53/10F16K15/04F16K15/06
    • F16K15/063F02M59/102F02M59/366F02M59/462F04B1/0452F04B53/10F04B53/1002F16K15/044
    • The invention concerns a high pressure pump comprising at least one pump component (16) wherein, upon the suction stroke of a pump piston (20), fuel from the fuel supply conduit (50) is sucked by an intake valve (30), the fuel being delivered by a delivery valve (32) upon the delivery stroke of the pump piston (20). The intake valve (30) comprises a component (44) whereof one sealing surface (48) inclined towards its longitudinal axis (45) co-operates with a valve seat (42c) arranged in a valve cage (40). Said valve component (44) enables, in an open state, when the sealing surface (48) of the valve component (44) is released from the valve seat (42c), a flow cross- section between the fuel supply conduit (50) and the pump working space (24) to be cleared between said valve component (44) and the valve cage (40). The valve component (44) being opened, a zone (52) provided with the smallest flow cross-section between the valve component (44) and the valve cage (40), in the direction of the flow circulating from the fuel supply conduit (50) towards the pump working space (24), is provided downstream of the flow and the sealing surface (48) of the valve component (44).
    • 本发明涉及一种包括至少一个泵组件(16)的高压泵,其中在泵活塞(20)的吸入行程上,来自燃料供应管道(50)的燃料由进气阀(30)吸入, 在泵活塞(20)的输送行程上,由输送阀(32)输送燃料。 进气阀(30)包括一个组件(44),一个密封表面(48)朝向其纵向轴线(45)倾斜,与配置在阀笼(40)中的阀座(42c)配合。 所述阀组件(44)能够在打开状态下当所述阀组件(44)的密封表面(48)从所述阀座(42c)释放时,所述燃料供应管道(50) 以及在所述阀部件(44)和阀保持架(40)之间被清除的泵工作空间(24)。 所述阀部件(44)被打开,所述区域(52)在所述阀部件(44)和所述阀保持架(40)之间沿从所述燃料供应管道(...)流动的流动方向上设置有最小的流动横截面 50)朝向泵工作空间(24)移动,设置在阀部件(44)的流动和密封表面(48)的下游。
    • 46. 发明公开
    • 고압 연료펌프
    • 高压燃油泵
    • KR1020010020755A
    • 2001-03-15
    • KR1020000020007
    • 2000-04-17
    • 미쓰비시덴키 가부시키가이샤
    • 오니시요시히코오지마코오이치아리마다께미모리카쿠히데키
    • F02M37/00
    • F04B53/1037F02M59/462F02M59/464F02M63/0225F04B11/0016F04B11/0091
    • PURPOSE: A high pressure fuel pump is provided to improve volume efficiency and prevent generation of fretting of a valve by forming a back pressure chamber communicated with a high pressure fuel discharge passage so as to face a center part of a plate having a fuel discharge port on a casing in a high pressure fuel supply body. CONSTITUTION: A piston(33) is reciprocated via a cam roller(47) and a tappet(44) by rotation of a camshaft of an engine. When the piston(33) is lowered, pressure is reduced within a fuel pressurizing chamber(32), fuel within a low pressure fuel supply passage(1) of a high pressure fuel pump(60) is made to flow into the fuel pressurizing chamber(32) via a valve(20). When the piston(33) is elevated, fuel within the fuel pressurizing chamber(32) is supplied to a delivery pipe(8) via a fuel discharge passage(4), a high pressure damper(5) and a check valve(6) and is supplied to a fuel injection valve. In this case, a communication hole(63) connected to the fuel discharge passage(4) is formed in a casing(62) in a high pressure fuel supply body(61) of the high pressure fuel pump(60) and is communicated to a back pressure chamber(64) facing a center part of a plate(22) of the valve(20).
    • 目的:提供一种高压燃油泵,通过形成与高压燃料排放通道连通的背压室,以便面对具有燃料排出口的板的中心部分,从而提高体积效率并防止产生微动作用 在高压燃料供应体的套管上。 构成:通过发动机的凸轮轴的旋转,活塞(33)经由凸轮辊(47)和挺杆(44)往复运动。 当活塞(33)下降时,燃料加压室32内的压力降低,高压燃料泵(60)的低压燃料供给通路(1)内的燃料流入燃料加压室 (32)通过阀(20)。 当活塞(33)升高时,燃料加压室(32)内的燃料经由燃料排出通路(4),高压阻尼器(5)和止回阀(6)供给到输送管(8) 并被供应到燃料喷射阀。 在这种情况下,在高压燃料泵(60)的高压燃料供给体(61)的壳体(62)上形成与燃料排出通路(4)连接的连通孔(63),并与 背压室(64),其面对阀(20)的板(22)的中心部分。
    • 47. 发明公开
    • 고압 연료펌프
    • 高压燃油泵
    • KR1020010020735A
    • 2001-03-15
    • KR1020000019284
    • 2000-04-12
    • 미쓰비시덴키 가부시키가이샤
    • 미야지와카기오오니시요시히코다나카가쓰노리오지마고오이치
    • F02M37/00
    • F04B1/0465F02M59/462F02M59/464
    • PURPOSE: A high pressure fuel pump is provided to improve volume efficiency and prevent generation of fretting of a valve by forming first and second fuel suction ports and first and second fuel discharge ports provided on a valve performing opening and closing for a low pressure fuel suction passage and a high pressure fuel discharge passage on the outside in the radial direction of an opening part of a fuel pressurizing chamber. CONSTITUTION: In a high pressure fuel pump(60) supplying fuel within a fuel pressurizing chamber(32) sucked via a low pressure fuel passage(1) by reciprocating motion of a piston according to rotation of a camshaft of an engine to a fuel injection valve via a valve(61) and via a fuel discharge passage, the valve(61) is incorporated together with a housing(37) and a sleeve(72) into a recessed part(10b) of a casing(10). The valve(61) is formed by arranging first and second fuel suction ports(66,68) and first and second fuel discharge ports on the outside in the radial direction of an opening part(200) of the fuel pressurizing chamber(32) on the outer peripheral part. As a result, the vicinities of the fuel suction ports(66,68) and the fuel discharge ports are pinched by strong force between the casing(10) and the sleeve(72) and generation of a gap can be suppressed.
    • 目的:提供一种高压燃油泵,通过形成第一和第二燃料吸入口以及设置在执行打开和关闭的低压燃料吸入阀上的第一和第二燃料排放口来提高体积效率并防止产生微动作用 在燃料加压室的开口部的径向外侧的外侧具有高压燃料排出通路。 构成:在通过活塞根据发动机的凸轮轴的旋转与燃料喷射的往复运动的情况下,通过低压燃料通道(1)吸入的燃料加压室(32)内供给燃料的高压燃料泵(60) 阀通过阀(61)并且经由燃料排出通道,阀(61)与壳体(37)和套筒(72)结合到壳体(10)的凹部(10b)中。 阀61是通过在燃料加压室32的开口部200的径向上的外侧设置第一和第二燃料吸入口66,68和第二燃料排出口, 外围部分。 结果,燃料吸入口(66,68)和燃料排出口附近被壳体(10)和套筒(72)之间的强力夹住,并且能够抑制间隙的产生。