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公开(公告)号：US20180335028A1
公开(公告)日：2018-11-22
申请号：US16049666
申请日：2018-07-30
发明人： Warren Andrew Seith
IPC分类号： F04B43/073 , F04B49/12 , F04B49/06 , F04B43/00 , F04B43/067 , F04B43/02
CPC分类号： F04B43/0736 , F04B43/0081 , F04B43/026 , F04B43/067 , F04B43/073 , F04B49/065 , F04B49/12
摘要： Illustrative embodiments of positive displacement pumps utilizing pressure compensating calibration, as well as related systems and methods, are disclosed. In one illustrative embodiment, a method of operating a positive displacement pump includes sensing, with a pressure sensor disposed at a fluid outlet of the positive displacement pump, a back pressure at the fluid outlet, transmitting a pressure signal associated with the sensed back pressure from the pressure sensor to a controller of the positive displacement pump, and identifying, on the controller, a volume of fluid pumped by the positive displacement pump using the pressure signal.
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公开(公告)号：US10042371B2
公开(公告)日：2018-08-07
申请号：US14955951
申请日：2015-12-01
摘要： According to one aspect of the present disclosure, a drain system, including a sensor in communication with a reservoir and controller, uses algorithmic control of a drain valve to adjust the interval and duration of actuation of the drain valve to regulate a fluid level within the reservoir. In embodiments applying the drain system to a gas compressor system, the disclosed control algorithm enables the controller to prevent the loss of compressed gas through an open path out the drain and further to prevent condensate generated by operation of the compressor system from backing up in the reservoir and reentering the flow of compressed gas. The control algorithm adjusts the interval and period of actuation of the drain valve such that as operating conditions change the drain valve opens more or less frequently for longer or shorter periods in response to varying condensate load.
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公开(公告)号：US10030694B2
公开(公告)日：2018-07-24
申请号：US14108345
申请日：2013-12-17
发明人： Sanjeev Kumar
摘要： In at least one illustrative embodiment, an adjustable joint comprises a housing, a pair of wedges arranged in the housing, and a threaded fastener engaged with at least one of the pair of wedges. The housing may include a first cavity that is sized to receive a spherical end of a shaft and a second cavity that is sized to receive a tube. The pair of wedges may be arranged between the first and the second cavities. The threaded fastener may be configured to (i) move the pair of wedges away from one another when rotated in a first direction and (ii) move the pair of wedges toward one another when rotated in a second direction opposite the first direction.
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公开(公告)号：US09964242B2
公开(公告)日：2018-05-08
申请号：US14729888
申请日：2015-06-03
发明人： Mauro Dell'Acqua , Eros Di Giusto
CPC分类号： F16L19/046 , F16L19/08 , F16L23/02 , F16L23/024 , F16L23/162 , F16L23/22 , F16L2201/20
摘要： A fluid connection joint to couple tubular pipes intended to convey gas, compressed air and other fluids. The fluid connection joint includes a deformable internal ring having sealing surfaces internally to engage with an outer surface of a first tubular element and frontally to engage with a second tubular element. The deformable internal ring is located within a housing that is coupled to a flange of the second tubular element by fixing screws. The tightening of the fixing screws results in a substantially radial compression of the internal ring and seals around the first tubular element and a second substantially axial compression of the frontal seal against the flange.
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公开(公告)号：US20180085900A1
公开(公告)日：2018-03-29
申请号：US15830478
申请日：2017-12-04
发明人： Warren A. Seith , Mark T. Mcclung
CPC分类号： B25B21/02 , B25B13/481 , B25B21/00 , B25B21/002 , B25F5/02
摘要： Illustrative embodiments of impact tools are disclosed. In at least one illustrative embodiment, an impact tool comprises a motor including an output shaft configured to rotate about a first axis and a drive train configured to be driven by the output shaft of the motor and to drive rotation of an output drive about a second axis that is non-parallel to the first axis, wherein the drive train includes an impact mechanism comprising a hammer configured to rotate about a third axis to periodically deliver an impact load to an anvil, the third axis being parallel to and spaced apart from the second axis.
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公开(公告)号：US09915265B2
公开(公告)日：2018-03-13
申请号：US14962705
申请日：2015-12-08
发明人： Michael Peters
IPC分类号： F01C21/06 , F03C2/00 , F03C4/00 , F04C2/00 , F04C29/02 , F04C18/16 , F04B39/02 , F04D29/063 , F04C23/00
CPC分类号： F04C29/021 , F04B39/02 , F04C18/16 , F04C23/008 , F04C29/028 , F04D29/063 , Y10S418/01
摘要： A compressor system with a continuously variable oil injection orifice is structured to regulate a flow of oil from an oil reservoir into a compressor. The orifice includes a first valve member moveable in response to oil pressure toward a second valve member to define a continuously variable flow area. A biasing member urges the first valve member away from the second valve member.
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公开(公告)号：US09871427B2
公开(公告)日：2018-01-16
申请号：US14212494
申请日：2014-03-14
CPC分类号： H02K11/33 , H02K1/141 , H02K3/18 , H02K16/04 , H02K2213/12
摘要： An electric motor having a rotor core with a rotatable shaft extending therethrough, and a stator positioned radially outward of the rotor core is disclosed herein. The stator can include at least one pair of first and second coils circumferentially positioned on opposing sides of the rotor. Each pair of the first and second coils includes first and second elements electronically isolated from one another. A first frequency converter is electrically connected to a first conductive wire and a second frequency converter is electrically connected to a second conductive wire. The first conductive wire is wound about the first element of the first coil and the first element of the second coil in series and the second conductive wire is wound about the second element of the first coil and the second element of the second coil in series.
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公开(公告)号：US09831746B2
公开(公告)日：2017-11-28
申请号：US14526064
申请日：2014-10-28
CPC分类号： H02K9/02 , H02K1/148 , H02K1/20 , H02K2201/03
摘要： A symmetrical cooling system for an electric rotor machine that includes a passageway that is positioned between portions of the stator, and which provides a pathway for a cooling medium. Stator ducts positioned within the stator, or portions thereof, are in fluid communication with the passageway. Cooling medium may flow through the stator ducts from the passageway to ends of the stator so that the cooling medium only travels along a portion of the overall axial length of the stator. The symmetrical cooling system also includes an air gap that is positioned between the stator and the rotor, and which receives cooling medium from the passageway at a midsection of the air gap. Cooling medium received at the midsection of the air gap may then flow towards either first or second ends of the stator.
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公开(公告)号：US09683569B2
公开(公告)日：2017-06-20
申请号：US14837945
申请日：2015-08-27
IPC分类号： F01C21/04 , F04C18/107 , F04C29/00
CPC分类号： F04C18/107 , F01C21/08 , F04C18/16 , F04C29/0007 , F04C29/04
摘要： A compressor includes a rotor having an outer compression surface and a plurality of inner heat exchange surfaces. A coolant supply manifold fluidly connects with a coolant inlet in a first axial end of the rotor, and delivers coolant fluid by way of conduits having an axial distribution in the rotor so as to deliver coolant fluid to the heat exchange surfaces. The coolant may be a refrigerant that undergoes a phase change within the rotor.
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公开(公告)号：US09680351B2
公开(公告)日：2017-06-13
申请号：US14214777
申请日：2014-03-15
摘要： An electrical machine has passages in the rotor. The passages have an inlet port and an exit port disposed at different locations. The passages remove heat from the electrical machine during operation. Another embodiment is an electrical machine rotor. The rotor has passages that remove heat from an electrical machine during operation. Other embodiments include apparatuses, systems, devices, hardware, methods, and combinations for electrical machines and the cooling of electrical machine rotors and/or stators.
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