公开(公告)号：US11746777B2

公开(公告)日：2023-09-05

申请号：US16768660

申请日：2018-06-20

申请人： SHIMADZU CORPORATION

发明人： Shinya Imamura ,  Keisuke Ogawa

IPC分类号： F04B53/10 ,  F16K31/06 ,  F04B7/00 ,  F04B49/22 ,  F16K31/08 ,  G01N30/32

CPC分类号： F04B53/1087 ,  F04B7/0076 ,  F04B53/1002 ,  F16K31/0655 ,  F04B49/22 ,  F16K31/08 ,  G01N30/32 ,  G01N2030/326

摘要： A liquid sending device includes a plunger pump, which performs an intake operation of liquid to and a discharge operation of liquid from a pump chamber and in which pressure in the pump chamber in a case where the intake operation is performed is lower compared to a case where the discharge operation is performed, a check valve that is provided at an inlet port, has a spherical valve element and a valve seat, and passively operates according to the pressure in the pump chamber in such a direction that the valve element is seated on or detached, a pressure sensor that detects the pressure, and an attachment detector that compares the pressure with a preset threshold value and detect attachment of the valve element to the valve seat in a case where the pressure in the pump chamber is equal to or lower than the threshold value.

公开(公告)号：US11719208B2

公开(公告)日：2023-08-08

申请号：US17470152

申请日：2021-09-09

申请人： DENSO CORPORATION

发明人： Hiroshi Inoue

IPC分类号： F02M59/46 ,  F02M37/16 ,  F02M37/00 ,  F02M37/04 ,  F02M59/02 ,  F04B7/00 ,  F04B53/10

CPC分类号： F02M59/466 ,  F02M37/00 ,  F02M37/0023 ,  F02M37/04 ,  F02M37/16 ,  F02M59/025 ,  F04B7/0053 ,  F04B7/0076 ,  F04B53/1087 ,  Y10T137/7837

摘要： A high-pressure pump has a metering valve and a valve stopper. The stopper has a regulation portion which an end surface of the valve is brought into contact with. An outer diameter of the regulation portion is equal to an outer diameter of the outer peripheral surface of the valve. A cylindrical sleeve is disposed around the regulation portion. When the end surface of the valve is in contact with the regulation portion, the sleeve covers a tapered surface of the valve.

公开(公告)号：US20190234392A1

公开(公告)日：2019-08-01

申请号：US16376430

申请日：2019-04-05

申请人： BITZER Kuehlmaschinenbau GmbH

发明人： Rainer Grosse-Kracht ,  Hermann Renz ,  Eduardo Martin ,  Jens Mannewitz

IPC分类号： F04B39/12 ,  F04B35/04 ,  F04B7/00

CPC分类号： F04B39/121 ,  F04B7/0076 ,  F04B27/053 ,  F04B35/01 ,  F04B35/04 ,  F04B39/123 ,  F04B39/125 ,  F04B49/06 ,  F04B49/24

摘要： In order to improve a semi-hermetic refrigerant compressor, comprising a reciprocating piston compressor, an electric motor, an overall housing which has a motor housing portion for the electric motor and a compressor housing portion for the reciprocating piston compressor, a suction-side refrigerant path which leads from a suction connection on the overall housing to an inlet chamber of the reciprocating piston compressor, and a pressure-side refrigerant path which leads from an outlet chamber of the reciprocating piston compressor to a pressure connection on the overall housing, such that the refrigerant compressor functions more efficiently, it is proposed that the electric motor is configured as a synchronous motor, in the rotor of which there are arranged permanent magnets for the synchronous operation of the electric motor and a squirrel cage for starting up the electric motor in asynchronous operation.

公开(公告)号：US20190120190A1

公开(公告)日：2019-04-25

申请号：US16225305

申请日：2018-12-19

申请人： DENSO CORPORATION

发明人： Hiroshi INOUE

IPC分类号： F02M59/46 ,  F02M59/02 ,  F02M37/00 ,  F02M37/04 ,  F04B7/00 ,  F02M37/16 ,  F04B53/10

CPC分类号： F02M59/466 ,  F02M37/00 ,  F02M37/0023 ,  F02M37/04 ,  F02M37/16 ,  F02M59/025 ,  F04B7/0053 ,  F04B7/0076 ,  F04B53/1087 ,  Y10T137/7837

摘要： A high-pressure pump has a metering valve and a valve stopper. The stopper has a regulation portion which an end surface of the valve is brought into contact with. An outer diameter of the regulation portion is equal to an outer diameter of the outer peripheral surface of the valve. A cylindrical sleeve is disposed around the regulation portion. When the end surface of the valve is in contact with the regulation portion, the sleeve covers a tapered surface of the valve.

公开(公告)号：US20190017480A1

公开(公告)日：2019-01-17

申请号：US15775206

申请日：2016-10-31

申请人： Kendrion (Villingen) GmbH

发明人： Florian SCHULZ ,  Ralf HEINGL ,  Tsuneo SUZUKI ,  Joachim FLÜHS ,  Holger BRANDENBURG

IPC分类号： F02M59/36 ,  F02M63/00 ,  F04B53/10 ,  F04B7/00 ,  F16K31/06 ,  H01F7/127 ,  H01F7/16

CPC分类号： F02M59/366 ,  F02M63/0019 ,  F02M63/0071 ,  F02M2200/8061 ,  F02M2200/8084 ,  F02M2200/9069 ,  F04B7/0076 ,  F04B53/1082 ,  F16K31/0675 ,  H01F3/00 ,  H01F7/127 ,  H01F7/1607

摘要： An electromagnetic actuator for a valve mechanism, in particular in a common rail system of a motor vehicle, comprising an armature tappet for actuating a valve element located in a channel, and comprising a pole core, the armature tappet being movable axially along a central axis of the actuator when an excitation coil of an excitation system is energized. The pole core therefore has a tubular shape and has a circumferential flange in the area of the pole core end facing the channel, said flange extending inward in relation to the central axis.

公开(公告)号：US20180313313A1

公开(公告)日：2018-11-01

申请号：US15769238

申请日：2016-10-05

申请人： Hitachi Automotive Systems, Ltd.

发明人： Daisuke KITAJIMA ,  Kenichi GUNJI ,  Shinichirou ENOMOTO ,  Masayuki KOBAYASHI ,  Masamichi YAGAI ,  Masahiro MORITAKA

IPC分类号： F02M59/26 ,  F02M59/44 ,  F02M59/48 ,  F04B1/04 ,  F04B1/053 ,  F04B11/00 ,  F04B53/16 ,  F04B7/00 ,  F04B9/04

CPC分类号： F02M59/26 ,  F02M59/442 ,  F02M59/485 ,  F02M2200/16 ,  F02M2200/8015 ,  F02M2200/8053 ,  F04B1/0426 ,  F04B1/0448 ,  F04B1/053 ,  F04B7/0076 ,  F04B9/042 ,  F04B11/0016 ,  F04B53/16

摘要： Provided is a high-pressure fuel supply pump capable of fixing a cylinder to a pump body with excellent sealability in a simple structure even at a high fuel pressure.A high-pressure fuel supply pump including a pump body in which a pressurizing chamber is formed, and a cylinder inserted into a hole formed in the pump body and formed in a cylindrical shape, the high-pressure fuel supply pump including: a protrusion disposed at an end portion of the pump body opposite to the pressurizing chamber, formed from an outer peripheral side to an inner peripheral side with respect to an inner peripheral surface opposite to an outer peripheral surface of the cylinder, and protruding toward the cylinder, wherein the protrusion is formed so as to protrude to a side opposite to the pressurizing chamber with respect to a flat portion of the end portion of the pump body, and the protrusion is formed so as to support the cylinder from a side opposite to the pressurizing chamber.

公开(公告)号：US20180202435A1

公开(公告)日：2018-07-19

申请号：US15919032

申请日：2018-03-12

申请人： DENSO CORPORATION

发明人： Masatoshi KUROYANAGI ,  Hiroshi INOUE ,  Shinichiro KOSHIMOTO

IPC分类号： F04B53/10 ,  F02M59/46 ,  F02M63/00 ,  F16K31/44 ,  F16K1/42 ,  F02M59/36 ,  F04B53/14 ,  F04B53/16 ,  F04B7/00

CPC分类号： F04B53/1087 ,  F02M59/02 ,  F02M59/368 ,  F02M59/46 ,  F02M59/466 ,  F02M63/0035 ,  F02M63/0075 ,  F02M63/0077 ,  F02M63/0078 ,  F04B7/0076 ,  F04B19/22 ,  F04B53/103 ,  F04B53/1032 ,  F04B53/14 ,  F04B53/16 ,  F16K1/32 ,  F16K1/42 ,  F16K1/50 ,  F16K1/54 ,  F16K31/0655 ,  F16K31/44

摘要： A valve seat has an inner passage and outer passages. A suction valve member has first passages and a first projection portion that guides, to the first passages, the fuel that flows from a pressure chamber at the time of valve opening. Therefore, an action force by the dynamic pressure applied to the suction valve member in the valve closing direction is reduced. An action force by the pressure of fuel that flows into pressure equalization grooves counterbalances the action force by the dynamic pressure of the suction valve member. Therefore, self-closing by the dynamic pressure can be inhibited, and the maximum output of an electromagnetic driving unit can be reduced. Fuel flows through a passage radially outside the suction valve member and the first passages. A fluid passage area is securable even when a lift amount of the suction valve member is small.

公开(公告)号：US09932950B2

公开(公告)日：2018-04-03

申请号：US15017909

申请日：2016-02-08

申请人： DENSO CORPORATION

发明人： Hiroshi Inoue

IPC分类号： F02M59/46 ,  F02M37/16 ,  F02M37/00 ,  F02M37/04 ,  F02M59/02 ,  F04B7/00 ,  F04B53/10

CPC分类号： F02M59/466 ,  F02M37/00 ,  F02M37/0023 ,  F02M37/04 ,  F02M37/16 ,  F02M59/025 ,  F04B7/0053 ,  F04B7/0076 ,  F04B53/1087 ,  Y10T137/7837

摘要： A high-pressure pump has a metering valve and a valve stopper. The stopper has a regulation portion which an end surface of the valve is brought into contact with. An outer diameter of the regulation portion is equal to an outer diameter of the outer peripheral surface of the valve. A cylindrical sleeve is disposed around the regulation portion. When the end surface of the valve is in contact with the regulation portion, the sleeve covers a tapered surface of the valve.

公开(公告)号：US09926878B2

公开(公告)日：2018-03-27

申请号：US15264635

申请日：2016-09-14

申请人： DENSO CORPORATION

发明人： Masahiko Suzuki

IPC分类号： F02D41/38 ,  F04B19/22 ,  F02D41/30 ,  F02M59/02 ,  F02M59/46 ,  F04B49/06 ,  F04B49/22 ,  F04B7/00 ,  F04B9/04 ,  F04B53/00 ,  F04B53/10 ,  F02D41/20

CPC分类号： F02D41/38 ,  F02D41/3082 ,  F02D41/3845 ,  F02D2041/2003 ,  F02D2041/2037 ,  F02D2041/389 ,  F02D2200/0602 ,  F02D2200/501 ,  F02M59/022 ,  F02M59/368 ,  F02M59/466 ,  F04B7/0076 ,  F04B9/042 ,  F04B19/22 ,  F04B49/065 ,  F04B49/22 ,  F04B53/001 ,  F04B53/1032 ,  F04B2201/0201

摘要： When a plunger of a high pressure pump is rising, a high pressure pump controller closes a regulator valve by energizing a solenoid of an electromagnetic actuator of the high pressure pump to discharge fuel into a delivery pipe. Further, this fuel discharge energization is stopped before the plunger reaches top dead center at a pump TDC timing. Further, a fuel pressure of the delivery pipe is detected at the pump TDC timing, and based on that detected value, a time Td from the pump TDC timing until a valve opening timing of the regulator valve is estimated. Once the estimated time Td elapses from the pump TDC timing, the solenoid is reenergized to removed a movement speed of a movable portion in a direction that pushes the regulator valve in an opening direction.

公开(公告)号：US09746004B2

公开(公告)日：2017-08-29

申请号：US14412897

申请日：2013-07-19

申请人： Dániel Alexander Wamala

发明人： Dániel Alexander Wamala

IPC分类号： F15B11/04 ,  F04B17/04 ,  F04B35/04 ,  F04B7/00 ,  F15B7/08 ,  F15B15/18 ,  F15B11/08

CPC分类号： F15B11/04 ,  F04B7/0076 ,  F04B17/04 ,  F04B17/044 ,  F04B35/045 ,  F04B2203/0403 ,  F15B7/08 ,  F15B11/08 ,  F15B15/18 ,  F15B2211/20 ,  F15B2211/20561 ,  F15B2211/20576 ,  F15B2211/3057 ,  F15B2211/328

摘要： Pulse controlled linear actuator comprising a working cylinder (9) for receiving a medium introduced through a valve system by a compressor/pump, a piston, the shank (13) of which represents the output of the actuator. It also comprises a central solenoid (1) and alternately moved iron cores (3). The central solenoid (1) and the iron cores (3) are arranged between upper and lower solenoids (2). The iron cores (3) have two separate medium spaces (14, 15). The first medium space (14) leads into the portion of the working cylinder (9) above the piston (10) and under the piston (10). The second medium space (15) is separated from the space between the iron cores (3) by the iron cores (3) and leads into the portion of the working cylinder (9) above the piston (10) and under the piston (10). The valves (4, 8) are counter-phase or phase pulse controlled.