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公开(公告)号：US12117001B2
公开(公告)日：2024-10-15
申请号：US18218428
申请日：2023-07-05
CPC分类号： F04C18/16 , F04C29/0007 , F04C29/02 , F04C2240/20 , F04C2240/30
摘要： The present disclosure is directed to a screw compressor system having a compressor housing with a pair of screw rotors rotatably supported within a compression chamber. Lubricant is injected into a compression chamber at a first volume ratio and at a second volume ratio greater than the first volume ratio to increase the sealing and lubrication between the screw rotors and rotor bores in the compressor housing as well as to increase heat transfer from a compressed working fluid in the compression chamber.
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公开(公告)号：US12053739B2
公开(公告)日：2024-08-06
申请号：US18317505
申请日：2023-05-15
发明人： Charles John Bergh
CPC分类号： B01D53/261 , B01D53/0446 , B01D53/0454 , B01D53/06 , B01D53/265 , F24F3/1429 , B01D2257/80 , B01D2259/4009
摘要： The present disclosure is directed to a dryer system for drying compressed gas discharged from a compressor. The dryer system includes a refrigeration drying system operable for removing moisture from the compressed gas and a desiccant drying system with a desiccant wheel located in series downstream of the refrigeration drying system operable for removing additional moisture from the compressed gas.
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公开(公告)号：US11992799B2
公开(公告)日：2024-05-28
申请号：US17991929
申请日：2022-11-22
CPC分类号： B01D46/4227 , B01D46/0005 , B01D46/24 , B01D46/88 , B01D2265/028 , B01D2271/022 , B01D2273/14
摘要： A compressor system includes a compression module having an inlet for receiving air; and a filter housing in fluid communication with the compression module. The filter housing is constructed to house a filter, the filter having a sealing feature disposed at a first end of the filter and having an engagement feature disposed at a second end of the filter opposite the first end. The filter housing includes a trap door constructed to contact the engagement feature, and constructed to drive the engagement feature in a direction parallel to an axis of the filter toward the sealing feature and urge the sealing feature into sealing engagement with the filter housing.
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公开(公告)号：US20240091915A1
公开(公告)日：2024-03-21
申请号：US18522948
申请日：2023-11-29
发明人： Warren A. Seith , Justin T. Chellew , Nicholas Garibaldi , Kevin M. Purdy , Mark T. McClung , Madan Kumar Mandal
CPC分类号： B25B21/023 , B25D17/04 , B25D17/06 , B25F5/02 , B25D2211/006 , B25D2211/06 , B25D2216/0007 , B25D2217/0015
摘要： An impact wrench is provided with a battery to power the motor. The impact wrench provides improved portability since the impact wrench does not need to be connected to an electrical extension cord or a pneumatic hose. The output drive, motor, batteries and main handle may be aligned along the axial direction of the tool. The batteries may be located between the motor and the main handle.
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公开(公告)号：US20240077087A1
公开(公告)日：2024-03-07
申请号：US18465313
申请日：2023-09-12
CPC分类号： F04D29/661 , F04D17/10 , F04D29/441 , F04D29/444 , F04D29/464
摘要： A dynamic compressor includes an impeller having impeller vanes disposed around a hub, a shroud, and a diffuser having a shroud surface adjacent to the shroud and a hub surface adjacent to the hub, wherein the diffuser is circumferentially disposed around the impeller. The diffuser includes a plurality of diffuser vanes extending from the hub surface to the shroud surface, each having a vane leading edge and a vane trailing edge. The diffuser includes a centrifugal acceleration stabilizer ring formed in the shroud surface located in a vaneless region defined between an impeller trailing edge and the vane leading edge. The centrifugal acceleration stabilizer ring stabilizes the flow of the fluid by changing the circumferentially-flowing high velocity fluid flow exiting the impeller into a radially-flowing high velocity fluid flow before entering the diffuser, improving the efficiency of the dynamic compressor.
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公开(公告)号：US20240075595A1
公开(公告)日：2024-03-07
申请号：US18239403
申请日：2023-08-29
摘要： An impact tool having a front lubrication assembly. The front lubrication assembly includes a lubrication port, a lubrication passage and at least one lubrication channel that directs a lubricant injected from a front end of the impact tool directly into an impact assembly of the impact tool. The lubrication passage extends through an anvil assembly of the impact tool, along an axis of rotation of the impact drive mechanism. The at least one lubrication channel extends away from the lubrication passage and delivers the lubricant to at the impact mechanism. The front lubrication assembly is accessed on a front end of the impact tool. The anvil assembly may be a split anvil assembly having an external anvil portion and an external anvil portion.
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公开(公告)号：US11919141B2
公开(公告)日：2024-03-05
申请号：US16552227
申请日：2019-08-27
摘要： An electric tool is provided with a second switch that is actuated in order for the tool to be used. The second switch is on a second handle that is grasped by the operator with a different hand than the hand that actuates the main trigger switch. Communication between the second switch and the tool occurs with a wireless signal indicating that the second switch has been actuated.
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公开(公告)号：US20240068471A1
公开(公告)日：2024-02-29
申请号：US18493919
申请日：2023-10-25
发明人： Daniel Brocker , Ziv Arzt , James Simmons , Spencer J. Lynn Zeedyk , Allen G. Braggs , Warren A. Seith
IPC分类号： F04C2/07 , F04B15/02 , F04B45/047 , F04C11/00
CPC分类号： F04C2/07 , F04B15/02 , F04B45/047 , F04C11/006 , F04B43/02
摘要： A diaphragm pump having a crankshaft that is rotatable about a rotational axis and coupled to a piston. The piston is reciprocally displaceable within a piston cylinder along an axis of motion between suction and discharge strokes. A diaphragm housing coupled to the piston cylinder at least partially defines a pumping chamber through which fluid is pumped as the piston reciprocates. The axis of motion, which intersects a connection between the piston and the connecting rod, may not intersect the rotational axis of the crankshaft such that, relative to an arrangement in which the axis of motion does intersect the rotational axis, a peak magnitude of piston side load forces during the discharge stroke is reduced and a peak magnitude of piston side load forces during the suction stroke is increased so as to attain an improved balance between the peak magnitudes of piston side load forces of the discharge and suction strokes.
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公开(公告)号：US20240061029A1
公开(公告)日：2024-02-22
申请号：US18488648
申请日：2023-10-17
摘要： The present application relates to apparatus (400, 500) for measuring an impedance of an electrical load (300) that is configured to be coupled to a controlled current source (200). The apparatus (400, 500) comprises a first coupling node (402) configured to be coupled to a first terminal (302) of the load (300) and a second coupling node (404) configured to be coupled to a second terminal (304) of the load (300). The apparatus further comprises a transformer (406) having a primary winding (408) and a secondary winding (410) and a capacitance (412) connected in series between a first terminal (414) of the secondary winding (410) and the first coupling node (402). A second terminal (416) of the secondary winding (410) is connected to the second coupling node (404). The apparatus further comprises a processing unit (424) is configured to control an excitation signal that is applied to the primary winding (408) so as to cause a variation, corresponding to the excitation signal, in an input current of the load (300), measure the input current and an input voltage of the load (300), and, based on the measured input current and input voltage, determining the impedance of the load (300).
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公开(公告)号：US20240018976A1
公开(公告)日：2024-01-18
申请号：US18476013
申请日：2023-09-27
发明人： Dhruv Kumar , Thomas Gerber , Andrew Austin , Chester Swiatek , Scott Ackerman
CPC分类号： F04D29/667 , F04D29/4206 , F04D27/02
摘要： Integrally geared centrifugal compressor systems are described that include eccentric cartridges that house bearings and seals to maintain rotor concentricity for a variety of pinons integrated in a fixed gearbox design to provide multiple impeller speeds with a single gearbox design. In an aspect, a system includes, but is not limited to, a pinion configured to be rotated by a bull gear about a rotational axis; a rotor coupled to the pinion; and an eccentric cartridge configured to house a bearing assembly through which the rotor extends to support rotation of the rotor, the eccentric cartridge having an outer surface and an inner surface, wherein the inner surface is eccentric relative to the outer surface to align the rotational axis with a center axis of the bearing assembly.
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