公开(公告)号：US12025146B2

公开(公告)日：2024-07-02

申请号：US17261953

申请日：2019-08-06

申请人： FPZ S.p.A.

发明人： Andrea Lazari ,  Andrea Cattanei ,  Sergio Ettore Ferigo

IPC分类号： F04D29/28 ,  F01D5/04 ,  F01D5/10 ,  F01D5/14 ,  F02M37/04 ,  F04D5/00 ,  F04D13/06 ,  F04D23/00 ,  F04D29/18 ,  F04D29/30 ,  F04D29/42 ,  F04D29/66

CPC分类号： F04D29/281 ,  F01D5/04 ,  F01D5/048 ,  F01D5/10 ,  F01D5/14 ,  F01D5/141 ,  F02M37/048 ,  F04D5/002 ,  F04D13/06 ,  F04D23/008 ,  F04D29/188 ,  F04D29/30 ,  F04D29/4206 ,  F04D29/666 ,  F05D2240/303 ,  F05D2260/96 ,  F05D2260/961

摘要： A fluid working machine comprises a rotor (7) with a blading (10) comprising 40 to 65 blades that radially project out of a body central and are suitably circumferentially offset on a plane normal to the axis of symmetry of the rotor, according to an appropriate spacing rule that can eliminate or appreciably attenuate the acoustic emission components that are mostly annoying to the human ear or at frequencies close to the resonance frequencies of other parts of the working machine.

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：US11619198B1

公开(公告)日：2023-04-04

申请号：US17743750

申请日：2022-05-13

申请人： Kohler Co.

发明人： James G. Leu ,  Joshua Bledsoe ,  Digambar Govardhan Patil

IPC分类号： F02M37/04 ,  F02M39/02 ,  F02M37/00

摘要： An engine apparatus includes a fuel supply system which may comprise a fuel reservoir, primary fuel supply path extending from a fuel inlet in fluid cooperation with the fuel reservoir to a fuel outlet, pressure pulse source, and first and second pressure-operated fuel pumps located along the primary fuel supply path; each of fuel pumps operably coupled to the pressure pulse source. The fuel pumps may be pulse type pumps arranged in series from a flow standpoint along the primary fuel supply path such that fuel discharged by the first fuel pump is supplied to the second fuel pump. The fuel pumps may be mounted and to the engine or appurtenance thereof in a stacked or side-by-side relationship. The pressure pulse source may be the engine crankcase in some designs. The flow and pressures delivered by the series flow fuel pumps are suitable for use with four stroke/cycle engines.

公开(公告)号：US20220341381A1

公开(公告)日：2022-10-27

申请号：US17858184

申请日：2022-07-06

申请人： Kohler Co.

发明人： Terrence Rotter ,  Todd Baumann ,  Gary Stenz

IPC分类号： F02M37/00 ,  A01D34/00 ,  F02M37/04 ,  F02M5/02

摘要： A carburetor includes a carburetor bowl, a fuel supply pipe, a fuel drain pipe, and a valve. The carburetor bowl is configured to store fuel and provide the fuel to an air passage. The fuel supply pipe is connected a fuel tank and the carburetor bowl. The fuel drain pipe is connected to the carburetor bowl and the fuel supply line. The valve for the fuel drain pipe is configured to open and close in response to an orientation of the carburetor.

公开(公告)号：US11466649B2

公开(公告)日：2022-10-11

申请号：US16771072

申请日：2018-11-19

申请人： Robert Bosch GmbH

发明人： Antonio Scamarcio ,  Pietro De Carlo

IPC分类号： F02M37/08 ,  F02M37/04 ,  F04C2/10 ,  F04B53/14 ,  F04B53/16

摘要： A pumping unit for feeding fuel, preferably diesel fuel, to an internal combustion engine has a pre-feed pump (3), which feeds the fuel to a high-pressure pump (2), is connected to a fuel storage chamber by means of an intake duct (49) and is provided with two gearings (40, 42) engaging with each other and made to rotate by an electric motor (37), a stator (38) of which is housed inside a containing chamber (48) formed in a pump body (32) of the pre-feed pump (3) and hydraulically connected to the intake duct (49).

公开(公告)号：US11441522B2

公开(公告)日：2022-09-13

申请号：US16061070

申请日：2016-11-25

申请人： DENSO CORPORATION

发明人： Tetsuo Hayakawa ,  Hiromi Sakai ,  Daiji Furuhashi

IPC分类号： F02M37/02 ,  F02M37/44 ,  F02M37/10 ,  F02M37/50 ,  F04C2/10 ,  F02M37/04 ,  F04C13/00 ,  B01D35/027 ,  F04C15/06 ,  F02D41/30

摘要： A fuel pump unit includes a suction filter and a fuel pump. The fuel pump includes: a rotatable shaft placed along a rotational axis; a rotor portion that rotates in response to rotation of the rotatable shaft; a suction hole portion, through which the fuel is suctioned into an inside of a rotor receiving chamber; and an outer peripheral wall that surrounds the suction hole portion. The suction filter includes: a filter element that filters the fuel and conducts the filtered fuel into an inside space; and a columnar hole portion having an inner peripheral wall, while the outer peripheral wall and the inner peripheral wall are fitted with each other, so that the columnar hole portion communicates between the inside space and the suction hole portion. The columnar hole portion is placed such that the rotational axis extends on an inner side of the inner peripheral wall.

公开(公告)号：US11313313B2

公开(公告)日：2022-04-26

申请号：US17358605

申请日：2021-06-25

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Masanao Idogawa ,  Satoshi Yoshizaki ,  Manami Yasunaga ,  Eiichiroh Kido

IPC分类号： F02D41/38 ,  F02D41/32 ,  F02M51/06 ,  F02M37/04

摘要： When a rotational speed of an engine is higher than a predetermined rotational speed, a low-pressure fuel injection valve is controlled through the use of a fuel injection time based on an estimated fuel pressure in a low pressure supply pipe and a target fuel injection amount. When the rotational speed of the engine is equal to or lower than the predetermined rotational speed, the low-pressure fuel injection valve is controlled through the use of a fuel injection time based on a detected fuel pressure input from the fuel pressure sensor from the issuance of a command to activate energization of a solenoid to the start of energization of the solenoid and a target fuel injection amount.

公开(公告)号：US11199160B1

公开(公告)日：2021-12-14

申请号：US17410665

申请日：2021-08-24

申请人： William F. Klier

发明人： William F. Klier

IPC分类号： F02M25/00 ,  F02M37/04 ,  F02M37/00 ,  F02D19/06

摘要： A fuel booster system having a fuel inlet port, a fuel outlet port, and a fuel accumulator fluidically coupled to both ports. The fuel inlet port allows fuel to be delivered to the fuel accumulator and the fuel outlet port is in fluid communication with a combustion engine to deliver fuel from the fuel booster system to the combustion engine. A source of pressurized gas is also fluidically coupled to the fuel accumulator to deliver pressurized gas through a gas port in one end of the fuel accumulator. A piston is located within the fuel accumulator and the source of pressurized gas can be discharged into the fuel accumulator to force accumulated fuel from the fuel accumulator and to the engine when the fuel booster system determines that the engine needs more fuel.

公开(公告)号：US11085441B2

公开(公告)日：2021-08-10

申请号：US16468050

申请日：2017-12-11

申请人： Robert Bosch GmbH

发明人： Antonio Scamarcio ,  Nello Medoro

IPC分类号： F04C2/10 ,  F02M63/02 ,  F02M37/08 ,  F02M37/04 ,  F04C15/00 ,  F04C11/00 ,  H02K5/22 ,  H02K11/33

摘要： An electric gear pump comprising: a gerotor rotatable about an axis of rotation A; a support base for the gerotor; a cover which can be joined to the base; a feed duct and a delivery duct; electronic components of the control unit which are fastened on the outer surface of the cover; wherein the feed and delivery ducts are at least partly formed in the cover and comprise an axial section parallel to the axis A and a radial section parallel to the outer surface of the cover; wherein the outer surface of the cover comprises an inset portion; wherein at least a portion of the radial sections of the feed and delivery ducts is configured so as to project externally from the inset portion of the outer surface of the cover and form projecting support portions for the electronic components of the control unit.

公开(公告)号：US11035491B2

公开(公告)日：2021-06-15

申请号：US16024348

申请日：2018-06-29

申请人： Continental Automotive Systems, Inc.

发明人： James Fochtman ,  John Walters ,  Tyler Craven

IPC分类号： F16K31/06 ,  F04B53/10 ,  F02M37/10 ,  H01F7/08 ,  H01F7/16 ,  F02M59/46 ,  F02M51/04 ,  F02M63/00 ,  F02M37/08 ,  F02M59/10 ,  F04B23/02 ,  F02M55/00 ,  F04B39/10 ,  F16K1/42 ,  F16K15/02 ,  F16K27/02 ,  F04B17/04 ,  F16K15/14 ,  F02M51/06 ,  F02M59/36 ,  B21D39/06 ,  F02M37/54 ,  F02M37/04

摘要： A solenoid assembly of a fuel pump includes a housing; a pole piece disposed within the housing; an armature assembly movably disposed within the housing and including an armature and a plunger; and a coil disposed within the housing. A plurality of metal disks are disposed in a stacked arrangement, coupled to the pole piece and situated so as to be impacted by the armature during a full stroke of the armature assembly. The solenoid assembly further includes at least one fluid path in fluid communication with the region surrounding the metal disks, the at least one fluid path configured such that only a portion of a secondary swept volume of fuel associated with the armature assembly during operation of the fuel pump passes through the region and decelerates the armature assembly when the armature assembly moves towards the pole piece responsive to a current passing through the coil.