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11. 发明授权

US11525605B2 Cooling circuit having a gas discharge unit removing gaseous refrigerant from a compressor feed line 有权
公开(公告)号：US11525605B2
公开(公告)日：2022-12-13
申请号：US15157870
申请日：2016-05-18
申请人： BITZER Kuehlmaschinenbau GmbH
发明人： Julian Pfaffl , Klaus Ohser
IPC分类号： F25B31/00 , F04B39/06 , F25B1/02 , F25B1/00 , F04B17/04 , F25B1/04
摘要： A cooling circuit comprises a refrigerant compressor incorporating a suction port and a pressure chamber incorporating a pressure port, a condenser arranged downstream of the pressure port, a fluid collecting chamber in which a reservoir of refrigerant is formed, an evaporator which is located between the condenser and the suction port, a feed unit which is connected at one side to the refrigerant reservoir and to the pressure chamber at the other side and which serves for supplying refrigerant from the refrigerant reservoir to the pressure chamber which incorporates a pumping unit for the refrigerant. It is proposed that in order improve this cooling circuit, the pumping unit comprise a pressure-tight closed housing which is provided with only one inlet and one outlet as access points and a pumping element which is movable for pumping the refrigerant be arranged in the pumping chamber thereof.

12. 发明申请

US20220372961A1 AIR COMPRESSOR 有权
公开(公告)号：US20220372961A1
公开(公告)日：2022-11-24
申请号：US17739143
申请日：2022-05-08
申请人： Wen-San CHOU , Cheng-Hsien CHOU
发明人： Wen-San CHOU , Cheng-Hsien CHOU
IPC分类号： F04B35/04 , F04B39/12 , F04B39/06
摘要： An air compressor contains: a body, a cylinder, a motor, and a transmission mechanism. The body includes multiple positioning orifices which are a first positioning orifice and a second positioning orifice. The cylinder is connected on the body and communicates with an air storage holder. The motor is fixed on the body, a small gear is received in the first positioning orifice, and a connection seat of the motor is accommodated in the first orifice. The transmission mechanism actuates the piston to move in the cylinder reciprocately so as to produce compressed airs. The motor further includes multiple fixing portions extending from a head edge of the casing thereof and configured to engage with the body, thus fixing the motor on the body securely without using any screws.

13. 发明授权

US11499536B2 Cylindrical magnetic coupling with alternating polarity 有权
公开(公告)号：US11499536B2
公开(公告)日：2022-11-15
申请号：US16751266
申请日：2020-01-24
申请人： RENSSELAER POLYTECHNIC INSTITUTE
发明人： Ethan Craig Brown
IPC分类号： F04B35/00 , H02K49/10 , H02K9/19 , F04B53/14 , F04B39/00 , F04B39/06 , F04B37/18
摘要： A magnetically coupled piston pump includes a piston, a pump body, and a set of drive magnets. The piston includes a set of piston magnets. Each piston magnet has poles arranged along a longitudinal axis of the piston, and each piston magnet is arranged in the piston so that the orientation of the poles of each piston magnet is the opposite of the orientation of each adjacent piston magnet. The piston is disposed in and permitted to move within the pump body. The set of drive magnets is arranged outside the pump body. Each drive magnet corresponds to a piston magnet, has poles arranged along the longitudinal axis, and is arranged so that the orientation of the poles is opposite the orientation of the poles of the corresponding piston magnet. A drive unit is coupled to the drive magnets for moving the drive magnets along the longitudinal axis.

14. 发明授权

US11441552B2 Reciprocating piston machine with cooling device 有权
公开(公告)号：US11441552B2
公开(公告)日：2022-09-13
申请号：US16632586
申请日：2018-06-07
申请人： VOITH PATENT GMBH
发明人： Marius Burkauskas
IPC分类号： F04B39/06 , F04B39/12 , F04B53/00 , F16K15/18 , F04B53/08
摘要： A reciprocating piston machine for compressing a fluid, more particularly ambient air, for a compressed air system of a motor vehicle, includes a cylinder housing and a cylinder head constructed layer by layer and including a valve carrier element with an outlet valve, a chamber plate and a head plate with a pressure medium outlet. A cooling medium channel for cooling at least a partial region of the cylinder head and an outlet channel for connecting the outlet valve to the pressure medium outlet are provided and extend through components of the cylinder head, at least in portions. In order to improve the cooling, at least a partial portion of the cooling medium channel and a partial portion of the outlet channel are allocated to the cylinder housing.

15. 发明授权

US11413568B2 Compressed-air drying device 有权
公开(公告)号：US11413568B2
公开(公告)日：2022-08-16
申请号：US16526640
申请日：2019-07-30
申请人： Manitowoc Crane Group France SAS
发明人： Thomas Schmithuesen
IPC分类号： B01D53/02 , B01D53/04 , F04B39/06 , F04B39/16 , B01D53/26
摘要： A drying device for drying intake air fed to a compressed-air system of a vehicle includes a cooling device connected downstream of a compressor in an intake air flow path and draws off heat from the intake air coming from the compressor, a desiccant container connected downstream of the cooling device in the intake air flow path and comprising an adsorbent for removing water from the intake air flowing through the desiccant container, and a regeneration container connected downstream of the desiccant container in the intake air flow path and configured to receive a first portion of the intake air coming from the desiccant container and, as required, returns it to the desiccant container and which feeds heat, drawn off by the cooling device, to the received intake air.

16. 发明申请

US20220154713A1 Piston Assembly for an Unloader Valve of an Air Compressor 有权
公开(公告)号：US20220154713A1
公开(公告)日：2022-05-19
申请号：US17594121
申请日：2020-04-02
申请人： KNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbH
发明人： Joerg MELLAR , Jean-Baptiste MARESCOT , Bertrand CHIROT , Arnaud CHAZELLES , Jean-Louis MEZZA
IPC分类号： F04B49/03 , F04B53/10 , F04B39/06 , B60T17/02
摘要： A piston assembly for an unloader valve of an air compressor includes an unloader piston having an end portion with a first bore of a first bore diameter, an intermediate portion with a second bore of a second bore diameter and an opposite end portion with a third bore of a third bore diameter; a coil spring having a central opening, one end portion disposed in the second bore of the unloader piston and an opposite end portion extending into the first bore of the unloader piston; and a balance piston including a head portion having a diameter to be disposed in the first bore of the unloader piston, and a stem portion extending from the head portion into the central opening of the coil spring and having a diameter smaller than the diameter of the head portion. The diameter of the stem portion at an end portion facing away from the head portion substantially corresponds to an inner diameter of the central opening of the coil spring. The balance piston includes a heat protection element.

17. 发明申请

US20220120264A1 COMPRESSOR AND HYDROGEN STATION 有权
公开(公告)号：US20220120264A1
公开(公告)日：2022-04-21
申请号：US17487231
申请日：2021-09-28
申请人： KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)
发明人： Tomohiro OTSUKA , Naofumi KANEI
IPC分类号： F04B39/06
摘要： A cylinder in a compression stage is provided with a first cooling channel through which a cooling fluid for absorbing heat generated between the cylinder and a first piston ring group flows, a second cooling channel through which a cooling fluid for absorbing heat generated between the cylinder and a second piston ring group flows, and a through hole penetrating a side wall of the cylinder in an intermediate part between the first cooling channel and the second cooling channel A hydrogen gas leaking from a compression chamber to the intermediate part through between the cylinder and a piston and then guided to a leak line. The leak line includes a piping part and a volume expansion unit in which volume in a predetermined distance range is larger than volume of the piping part at the same distance range as the predetermined distance range.

18. 发明申请

US20220120263A1 COMPRESSOR AND HYDROGEN STATION 有权
公开(公告)号：US20220120263A1
公开(公告)日：2022-04-21
申请号：US17487127
申请日：2021-09-28
申请人： KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)
发明人： Tomohiro OTSUKA , Naofumi KANEI
IPC分类号： F04B39/06 , F04B25/00 , F04B39/12
摘要： A compression stage includes a cylinder, a piston, a first piston ring group, and a second piston ring group. The cylinder includes a first cooling channel through which a cooling fluid for absorbing heat generated between the cylinder and the first piston ring group flows, a second cooling channel through which a cooling fluid for absorbing heat generated between the cylinder and the second piston ring group flows, and an intermediate part disposed between the first cooling channel and the second cooling channel. A communication channel is connected to the intermediate part and a connection pipe, and guides a hydrogen gas leaking from a compression chamber through the first piston ring group to the intermediate part, to the outside of the cylinder.

19. 发明授权

US11255319B2 Shaft-cylinder assembly for high temperature operation 有权
公开(公告)号：US11255319B2
公开(公告)日：2022-02-22
申请号：US16297653
申请日：2019-03-09
申请人： Neo Mechanics Limited
发明人： Stanley Moon Kai Ko , Kyong Tae Chang
IPC分类号： F04B39/06 , F16J15/16 , F04B39/04 , F04B53/16 , F16J15/18 , F04B39/02
摘要： The present invention provides a shaft-cylinder assembly for high-temperature operation comprising a pair of first and second dynamic sealing members having a helical coiled seal ring structure configured to be in contact with the shaft for providing dynamic sealing function in the cylinder; and a cylindrical cooling jacket configured to circumferentially surround the dynamic sealing members such that a cavity is defined between the dynamic sealing members inside the cooling jacket; wherein the cooling jacket comprises one or more inflow cooling channels and one or more outflow cooling channels configured to communicating with the cavity and circulating a cooling fluid through the cavity for moving heat away from the dynamic sealing members.

20. 发明授权

US11204025B2 Gas compression cooling system 有权
公开(公告)号：US11204025B2
公开(公告)日：2021-12-21
申请号：US16264104
申请日：2019-01-31
申请人： PC3 TECHNOLOGIES, LLC
发明人： Matthew Pierce
IPC分类号： F04B39/06 , F04B35/00 , F04B25/00 , F28D1/047 , F28D1/04
摘要： A multi-stage gas compression system useful at the production site and at central collection points, having an energy efficient and effective intercooler system. The system includes a reciprocating compressor having a plurality of compressor valves and cylinders configured in series to provide staged compression to the natural gas. Coupled with the compressor are an inlet port for receiving natural gas to be compressed, and an outlet port for delivering compressed fluid from the compressor to a discharge line, to the transmission pipeline or storage. Facilitating transmission and intercooling of the natural gas between cylinders are a plurality of pipes, each pipe in close proximity with an intercooler. The rate of cooling of the intercooler is determined by a control system coupled therewith, including a temperature sensor positioned within pipe proximal to the intercooler, and means to compare the temperature measured by the temperature sensor and an optimal temperature or temperature range, and determine appropriate levels of cooling provided by the intercooler.

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