公开(公告)号：US5263818A

公开(公告)日：1993-11-23

申请号：US970384

申请日：1992-11-02

申请人： Motoya Ito ,  Minoru Yasuda

发明人： Motoya Ito ,  Minoru Yasuda

IPC分类号： F02M37/20 ,  F02M37/08 ,  F04C2/10 ,  F04C15/00 ,  F04D5/00 ,  F04D9/00 ,  F04C15/02

CPC分类号： F02M37/08 ,  F04C15/0049 ,  F04C15/0053 ,  F04D5/002 ,  F04D9/002 ,  F04C2/102

摘要： A pump comprises an outer rotor and an inner rotor. A plurality of pressure chambers are defined between the outer rotor and the inner rotor to cause fluid to be sucked from a suction port and discharged to a discharge port by the movement of these pressure chambers with changing their volumes. A pressure relief passage is opened between the discharge port and the suction port and communicated directly with a fuel tank provided outside the pump. This causes the pressure in the pressure chamber to be reduced before the pressure chamber is communicated with the suction port. In consequence, it is possible to prevent the fuel of discharge pressure in the pressure chamber from being brought in the suction port, thereby preventing the generation of vapor caused due to vacuum boiling and the reduction of discharge rate.

摘要翻译： 泵包括外转子和内转子。 在外转子和内转子之间限定多个压力室，以使流体从吸入口吸入，并通过这些压力室的体积变化而被排出到排出口。 压力释放通道在排出口和吸入口之间打开，并与设在泵外部的燃料箱直接连通。 这导致在压力室与吸入口连通之前压力室中的压力降低。 因此，可以防止压力室中的排出压力的燃料进入吸入口，从而防止由真空沸腾引起的蒸气的产生和排出速率的降低。

公开(公告)号：US4407642A

公开(公告)日：1983-10-04

申请号：US228043

申请日：1981-01-26

申请人： Ulrich Kemmner

发明人： Ulrich Kemmner

IPC分类号： F04C13/00 ,  F02M37/10 ,  F04C15/00 ,  F04C15/06 ,  F04B17/00 ,  B67D3/00

CPC分类号： F04C15/06 ,  F02M37/10 ,  F04C15/0053 ,  Y10T137/7326

摘要： A fuel supply unit is proposed, in particular an assembly comprising a pumping element and an electromotor to drive it housed together in a common housing, which is secured in an upright position in the interior of a fuel container in such a manner that the pumping element is disposed near the bottom of the fuel container to enable aspiration of fuel from the fuel container until it is as nearly empty as possible. The pumping element has a first intake area oriented toward the bottom of the fuel container and a second intake area remote from the bottom of the fuel container, the second intake area being closable by a closure member movably disposed on the fuel supply unit whenever the fuel level in the fuel container drops below a predetermined level, so that fuel is then aspirated only via the first intake area. The closure member is actuatable by means of a floater body.

摘要翻译： 提出了一种燃料供应单元，特别是一种组件，其包括泵送元件和电动机，以将其容纳在一起容纳在公共壳体中，该公共壳体以直立位置固定在燃料容器的内部，使得泵送元件 设置在燃料容器的底部附近以使得能够从燃料容器抽吸燃料，直到其尽可能地几乎为空。 泵送元件具有朝向燃料容器的底部定向的第一进气区域和远离燃料容器的底部的第二进气区域，第二进气区域可由可移动地设置在燃料供应单元上的关闭构件关闭， 燃料容器中的液位降低到预定水平以下，从而仅通过第一进气区域吸出燃料。 封闭构件可通过浮体进行致动。

公开(公告)号：US4021155A

公开(公告)日：1977-05-03

申请号：US631578

申请日：1975-11-13

申请人： Robert W. Erikson ,  Frank L. Harwath

发明人： Robert W. Erikson ,  Frank L. Harwath

IPC分类号： F04B53/06 ,  F04C15/00 ,  F23K5/14 ,  F04B49/00 ,  F04B21/00

CPC分类号： F04C15/0053 ,  F04B53/06 ,  F23K5/142

摘要： A fuel burner pumping system includes a pump having an inlet communicating with a fuel source and an outlet which communicates with a control valve assembly for regulating the pressure of the fuel supplied to the fuel burner nozzle or nozzles through a nozzle passage leading from an outlet port of a main chamber in the control valve assembly. High pressure fuel is pumped into the main chamber through a first outlet passage leading from the pump. A second outlet passage leading from the pump to the nozzle passage by-passes the control valve assembly so that air may be purged from the system when the pump initially is started. An air purging valve within the second outlet passage is movable between closed and open positions for blocking fuel flow through such passage during normal operation of the pump and for opening the second passage when the pump initially is started. In one form of the invention, the purging valve is operable manually and, in another form of the invention, the air purging valve operates automatically.

摘要翻译： 燃料燃烧器抽吸系统包括具有与燃料源连通的入口的泵和与控制阀组件连通的出口，该控制阀组件用于通过从出口端口引出的喷嘴通道来调节供应到燃料燃烧器喷嘴或喷嘴的燃料的压力 控制阀组件中的主室。 高压燃料通过从泵引出的第一出口通道被泵入主室。 从泵通过喷嘴通道的第二出口通道绕过控制阀组件，使得当泵初始启动时可以从系统中清除空气。 第二出口通道内的空气净化阀可在关闭位置和打开位置之间移动，以在泵的正常操作期间阻止燃料流过该通道，并且当泵初始启动时打开第二通道。 在本发明的一种形式中，清洗阀可手动操作，并且在本发明的另一形式中，空气净化阀自动运行。

公开(公告)号：US3850548A

公开(公告)日：1974-11-26

申请号：US33161173

申请日：1973-02-12

申请人： DELANCEY W

发明人： DELANCEY W

IPC分类号： F04C14/04 ,  F04C14/22 ,  F04C15/00 ,  F04B49/00

CPC分类号： F04C14/223 ,  F04C14/04 ,  F04C15/0053

摘要： In a variable capacity pump with an inlet port and a discharge outlet adapted for connection to a nozzle, a cylinder within the pump body having a casing and a pump stator slidably mounted in the cylinder and receiving a vaned rotor for receiving fluid from said inlet and discharging to said outlet; the improvement which includes a delivery chamber receiving said pumped fluid with a cut off valve opening. Said opening includes a valve seat with a soft valve in one end of the movable stator normally engaging said seat. A spring retainer is normally spaced outwardly of one end of the stator and a weak air release spring is interposed between said retainer and said stator. A discharge pressure spring is interposed between the pump body and said retainer, normally holding the retainer during initial movement of the stator towards and into engagement with the retainer so that initial low pressure air delivered to said chamber lifts the soft valve from said seat for delivery to said nozzle. Solid liquid subsequently pumped to said chamber of progressively increasing pressure causes the stator to move further radially outward against the action of said discharge pressure spring further opening said valve to reach an equilibrium of volume of pumped liquid delivered to said nozzle. The improved pump includes opposed pairs of intake and outlet grooves upon opposite sides of the stator registerable with corresponding pairs of intake and discharge ports extending through the inner and outer walls of the pump cylinder together with opposed bosses upon opposite sides of said stator normally closing one of each pair of intake and discharge ports whereby, the stator is reversible face to face, depending upon the direction of rotation of the rotor. An improved drive shaft seal is incorporated into the pump body which includes a stationary seal element on the body and a rotative seal element engageable therewith and connected with said drive shaft.

摘要翻译： 在具有适于连接到喷嘴的入口和排出口的可变容量泵中，泵体内的气缸具有壳体和可滑动地安装在气缸中的泵定子，并接收用于从所述入口接收流体的叶片式转子， 排放到所述出口; 该改进包括一个接收所述泵送流体的输送室，其具有截止阀开口。 所述开口包括具有软阀的阀座，该阀座在可动定子的一端正常接合所述座。

公开(公告)号：US3635604A

公开(公告)日：1972-01-18

申请号：US3635604D

申请日：1969-12-02

申请人： DANFOSS AS

发明人： PETERSEN JORGEN HARTVIG ,  HANSEN GUNNAR LYSHOJ

IPC分类号： F04C14/06 ,  F04C14/24 ,  F04C15/00 ,  F04C15/06 ,  F04B49/00 ,  F01C1/10 ,  F04C1/06

CPC分类号： F04C15/062 ,  F04C14/06 ,  F04C14/24 ,  F04C15/0053 ,  F04C2220/20

摘要： The invention relates to an oil pump unit for oil burners which includes a known assembly of a geared pump, a sump at a lower level, and a pressure regulator valve. Air vent means are provided which includes apparatus for feeding back to the pump pressurized liquid from the pressure regulator. The pump proper has novel passage means for receiving the fed back pressurized liquid to the pumping chambers to effect a venting of pressurized air from the chambers.

摘要翻译： 本发明涉及一种用于油燃烧器的油泵单元，其包括齿轮泵，下层的油槽和压力调节阀的已知组件。 提供排气装置，其包括用于从压力调节器反馈到泵加压液体的装置。 泵本体具有新颖的通道装置，用于将反馈的加压液体接收到泵送室以实现来自腔室的加压空气的排放。

公开(公告)号：US3474735A

公开(公告)日：1969-10-28

申请号：US3474735D

申请日：1967-05-24

申请人： SAMUEL E GILMORE

发明人： GILMORE SAMUEL E

IPC分类号： F04C15/00 ,  F04D9/00 ,  F04D9/02

CPC分类号： F04C15/0053 ,  F04D9/006

公开(公告)号：US20100183467A1

公开(公告)日：2010-07-22

申请号：US12691457

申请日：2010-01-21

申请人： Gregory S. Sundheim

发明人： Gregory S. Sundheim

IPC分类号： F04C15/00

CPC分类号： F04C18/3441 ,  F04C2/12 ,  F04C13/007 ,  F04C15/0053 ,  F04C23/006 ,  F04C23/02 ,  F04C25/02 ,  F04C28/06

摘要： A portable, rotary vane vacuum pump with an automatic vacuum breaking arrangement that vents the pump to atmosphere whenever the drive motor ceases to rotate the pump. The arrangement prevents lubricating oil in any substantial amount from being undesirably drawn or sucked into the evacuated pump when the drive motor is shut off either intentionally or unintentionally. If the system being evacuated is also still connected to the pump, the arrangement will additionally vent it and greatly limit any amount of oil that may be undesirably sucked back into it. The pump also has a primary oil container that essentially holds all of the oil for the system. The primary container is preferably made of clear, rigid plastic so that the condition of the oil in the system can be visually monitored. It is also removable from the main body of the pump and can be quickly and easily replaced with another container of fresh oil even while the pump is still operating.

摘要翻译： 一种便携式旋片式真空泵，具有自动真空断开装置，每当驱动电机停止旋转泵时，将泵排入大气。 当驱动马达有意或无意地切断时，该布置防止任何实际量的润滑油不期望地被抽吸或抽吸到抽真空泵中。 如果抽真空的系统仍然连接到泵，则该装置还将排放它并且极大地限制可能不期望地被吸回到其中的任何量的油。 泵还具有基本上保持系统的所有油的主油容器。 主容器优选地由透明的刚性塑料制成，使得系统中的油的状态可以被目视监视。 它也可以从泵的主体移除，并且即使在泵仍在运行时也可以快速方便地用另一个新鲜容器替换。

公开(公告)号：US5350285A

公开(公告)日：1994-09-27

申请号：US97069

申请日：1993-07-23

申请人： Uwe Liskow ,  Jochen Thoennissen ,  Uwe Loistl ,  Oliver Wahl

发明人： Uwe Liskow ,  Jochen Thoennissen ,  Uwe Loistl ,  Oliver Wahl

IPC分类号： F02M37/10 ,  F02M37/04 ,  F02M37/20 ,  F04C2/10 ,  F04C15/00

CPC分类号： F02M37/20 ,  F02M37/041 ,  F04C15/0053 ,  F04C2/10 ,  F04C2250/101

摘要： An aggregate for feeding fuel from a supply tank to the internal combustion engine of a motor vehicle, has a pump chamber with a suction opening for receiving fuel and a pressure opening for supplying a fuel and a feeding element rotating in the pump chamber and feeding fuel from the suction opening to the pressure opening. At least one of the chamber end walls in a region of a sealing surface formed between an end surface of the feeding element and one of the chamber walls has an opening which leads to an unloading space, and the opening as considered in a rotary direction of the feeding element is located near one edge which limits the suction opening, and has a radial extension which is at least equal to a radial extension of the suction opening.

摘要翻译： 用于从供应罐向机动车辆的内燃机供给燃料的集料具有泵室，其具有用于接收燃料的吸入口和用于供应燃料的压力开口和在泵室中旋转的进料元件和供给燃料 从吸入口到压力开口。 在供给元件的端面和其中一个室壁之间形成的密封面的区域中的至少一个室端壁具有通向卸载空间的开口，并且沿旋转方向 馈送元件位于限制吸入开口的一个边缘附近，并且具有至少等于吸入开口的径向延伸的径向延伸部。

公开(公告)号：US4619588A

公开(公告)日：1986-10-28

申请号：US603599

申请日：1984-04-25

申请人： Harry W. Moore, III

发明人： Harry W. Moore, III

IPC分类号： F02M37/08 ,  F02M37/10 ,  F04C15/00 ,  F04C15/02 ,  F04C2/10 ,  F16D1/08 ,  H02K21/06

CPC分类号： F04C15/0053 ,  F02M37/08

摘要： One set of circumferentially juxtaposed axial surfaces of the motor magnets of a wet motor gerotor pump are separated circumferentially by a tunnel device having a central bridge portion radially just clearing the rotating armature and bounded by a pair of leg portions extending radially outwards from the central bridge portion to establish a substantially laminar flow path for the fuel. The tunnel device further spaces the armature relative to the gerotor pump cavity. A vent valve is provided in the outlet housing of the pump. A spring biases a ball valve against an imperfect seat encircling the inlet passage to provide a permanent vent bypass passage therebetween. The spring seats the ball valve against the imperfect seat to permit fuel vapors to vent through the vent outlet passage until liquid reaches the ball valve. The liquid then overcomes the bias of the spring to seat the ball against an outlet seat encircling the outlet passage to close the same.

摘要翻译： 湿式电动机转子泵的电动机磁体的一组周向并置的轴向表面由隧道装置分隔开，该隧道装置具有径向刚好清除旋转电枢并由一对从中心桥径向向外延伸的支脚部分 以形成用于燃料的基本层流路径。 隧道装置进一步使衔铁相对于齿轮泵腔空间。 在泵的出口壳体中设置排气阀。 弹簧将球阀偏置在环绕入口通道的不完美座椅上，以在它们之间提供永久的排气旁路通道。 弹簧将球阀安置在不完美的座椅上，以允许燃料蒸气通过排气出口通道排出，直到液体到达球阀。 然后，液体克服弹簧的偏压，将球定位在围绕出口通道的出口座上，以使其闭合。

公开(公告)号：US4222751A

公开(公告)日：1980-09-16

申请号：US937537

申请日：1978-08-28

申请人： Richard F. Shunta

发明人： Richard F. Shunta

IPC分类号： B01D19/00 ,  F04C15/00

CPC分类号： B01D19/0052 ,  F04C15/0053

摘要： A gasoline pump includes a cyclone air separator by which air is removed from the gasoline being pumped. The air is vented to the atmosphere through a vent chamber. The cyclone separator includes a scavenging tube for capturing the air bubbles and is coupled to an orifice between the separator and the vent chamber. The scavenging tube and orifice have diameters selected to capture substantially all of the air bubbles and a float valve couples the vent chamber to the pump inlet to return entrained gasoline to the pump. A damped output control valve regulates the internal pump pressure so the cone of air bubbles formed in the cyclone separator remains relatively constant and is efficiently captured by the scavenger tube.

摘要翻译： 汽油泵包括旋风分离器，通过该旋风分离器从被泵送的汽油中除去空气。 空气通过排气室排放到大气中。 旋风分离器包括用于捕获气泡的扫气管并且联接到分离器和通气室之间的孔口。 清扫管和孔口具有选择的直径以捕获基本上所有的气泡，并且浮阀将排气室连接到泵入口以将夹带的汽油返回到泵。 阻尼输出控制阀调节内部泵压力，使得在旋风分离器中形成的气泡锥保持相对恒定，并被清流管有效地捕获。