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公开(公告)号：US11542892B1
公开(公告)日：2023-01-03
申请号：US17523521
申请日：2021-11-10
摘要： A turbocharged compressor system using an Organic Rankine Cycle system to recover waste heat from a compression process. The Organic Rankine Cycle system circulates an organic fluid through an evaporator, where the organic fluid vaporizes and is expanded in a turbine section of a turbocharger to drive a compressor section of the turbocharger. The organic fluid vapor is condensed in a condenser and is pumped to the evaporator once again for recirculation. The compressor section of the turbocharger pre-compresses a working fluid before entering an airend in a compression system. As the working fluid exits the airend, it may be delivered to the evaporator, where the waste heat from the working fluid evaporates the organic fluid flowing in the Organic Rankine Cycle system. The working fluid may also be circulated between intercoolers in multi-stage compressor systems.
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公开(公告)号：US11491616B2
公开(公告)日：2022-11-08
申请号：US15172501
申请日：2016-06-03
发明人： Sean C. Ely , Pinhua Xie , Jason Christopher Bartoszek , Joshua Odell Johnson , Warren A. Seith , Vikram Madineni , Timothy Richard Cooper
摘要： A hand-held power tool is provided that includes a housing assembly, an output spindle, and a motor endbell. The housing assembly supports an electric motor having a rotor configured to rotate when the electric motor is supplied with power. The output spindle protrudes from an output end of the housing assembly, and is functionally coupled to the rotor such that the output spindle rotates in response to a rotation of the rotor. The motor endbell is located on the housing assembly adjacent the electric motor and opposite the output spindle. An illustrative controller is operable to determine phases of a fastening operation in which the hand-held power tool is operating. The phases of the fastening operation of the hand-held power tool include two phases including: (1) a continuous run phase and (2) an impacting phase.
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公开(公告)号：US20220333596A1
公开(公告)日：2022-10-20
申请号：US17858500
申请日：2022-07-06
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 , F04C11/00 , F04B45/047
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：US20220288530A1
公开(公告)日：2022-09-15
申请号：US17202091
申请日：2021-03-15
发明人： Henry Y. Mark , Randy Eng
IPC分类号： B01D53/26
摘要： Compressed air dryer systems are described. In an aspect, a system includes, but is not limited to, a plurality of dryer modules and a controller operable to regulate a run-time of each of the plurality of dryer modules. Each dryer module is configured to direct a portion of cooling medium past a stream of compressed air. Each dryer module includes a temperature sensor in thermal communication with the portion of cooling medium, and a chiller configured to reduce a temperature of the portion of cooling medium based on the sensed temperature and a temperature set-point. The controller communicatively is coupled with the plurality of dryer modules and operable to monitor a plurality of run-times. Each run-time is associated with a corresponding dryer module. The controller is further operable to direct operation of each dryer module based on its run-time by modifying the temperature set-point of the dryer module.
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公开(公告)号：US11408434B2
公开(公告)日：2022-08-09
申请号：US16709442
申请日：2019-12-10
发明人： Noel Blair
摘要： A centrifugal compressor impeller includes a plurality of blades on a front side that extend from a first axial side to an outer radial end of the impeller. The centrifugal impeller includes a back side having a nonlinear backwall. The backwall can include a flat area hear a bore of impeller, a flat area near a tip of the impeller, and a convex surface between the flat areas of the bore and the tip. In some forms the impeller further includes a concave surface between the convex surface and the tip to form an s-shape. A transition or inflection point can denote the change from convex to concave. The convex and/or concave surfaces can take any variety of forms such as constant radius sections and/or compound curves.
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公开(公告)号：US11369920B2
公开(公告)日：2022-06-28
申请号：US16731262
申请日：2019-12-31
摘要： A compressed air drying system is provided for removing moisture from compressed air. The dryer operates in two modes in response to the demand for compressed air. In a first mode of operation, a refrigeration compressor runs continuously and the speed of a condenser fan is varied to maintain a constant cooling temperature. In a second mode of operation, the refrigeration compressor runs intermittently between on and off periods. As result, the cooling temperature fluctuates during the second mode of operation.
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公开(公告)号：US20220193881A1
公开(公告)日：2022-06-23
申请号：US17127084
申请日：2020-12-18
发明人： Huajun Tao , Hongjie Zhou , Yunzhong Yu , James F. Bouchard
IPC分类号： B25F5/02
摘要： A pneumatic tool includes, but is not limited to, an air motor cylinder defining an interior configured to receive an air motor and further defining an inlet configured to receive pressurized air to supply to the air motor; a tool handle defining a source fluid passageway fluidically coupled between the inlet and an air inlet configured to receive pressurized air, the source fluid passageway configured to direct a first portion of pressurized air received by the inlet to the inlet of the air motor cylinder; an air pressure indicator coupled to the air motor cylinder and configured to provide an indication of a dynamic air pressure of the pneumatic tool; and an indicator fluid passageway fluidically coupled between the air pressure indicator and the source fluid passageway, the indicator fluid passageway configured to divert a second portion of pressurized air received by the air inlet to the air pressure indicator.
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公开(公告)号：US11359632B2
公开(公告)日：2022-06-14
申请号：US14530177
申请日：2014-10-31
摘要： A gas compressor is disclosed that includes a first rotor having a first rotor body, the first rotor body including a plurality of helical lobes, an infernal volume within the first rotor body defined by a wall, and a turbine disposed within the internal volume, the turbine including a turbine body and a plurality of airfoils extending substantially radially from the turbine body to the wall, where the internal volume is structured to enable a cooling fluid to flow therethrough. The gas compressor further includes a second rotor body including a plurality of helical flutes, an inlet manifold and an outlet manifold, both disposed within the second rotor body, and a body channel within at least one flute extending from and in fluid communication with the inlet manifold to the outlet manifold, where the body channel is structured to enable a cooling fluid to flow therethrough.
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公开(公告)号：US11247321B2
公开(公告)日：2022-02-15
申请号：US15958046
申请日：2018-04-20
摘要： Illustrative embodiments of impact tools with impact mechanisms rigidly coupled to electric motors are disclosed. In at least one illustrative embodiment, an impact tool may comprise an impact mechanism, an electric motor, and a control circuit. The impact mechanism may comprise a hammer and an anvil, the hammer being configured to rotate about a first axis and to periodically impact the anvil to drive rotation of the anvil about the first axis. The electric motor may comprise a rotor that is rigidly coupled to the impact mechanism, the electric motor being configured to drive rotation of the hammer about the first axis. The control circuit may be configured to supply a current to the electric motor and to prevent the current from exceeding a threshold in response to the hammer impacting the anvil.
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公开(公告)号：US20210199154A1
公开(公告)日：2021-07-01
申请号：US17203029
申请日：2021-03-16
IPC分类号： F16C17/03
摘要： A hydrodynamic bearing in the form of a flex pad bearing includes configurations structured to change a bearing characteristic. One form of the bearing includes a nonlinear back wall that includes a circular arc and a transition, where the back wall extends radially outward of a ligament. The bearing can include an opening for the deposit of a weighted mass, wherein the opening can threadingly receive a threaded weighted mass. In one form a sidewall that includes the back wall segment can have an average outer radius which determines a thickness of the flex pads. A ratio of the pad between the thickness and diameter of a central passage can be set to achieve the change in bearing characteristic.
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