公开(公告)号：US20240318553A1

公开(公告)日：2024-09-26

申请号：US18679866

申请日：2024-05-31

申请人： Kerr Machine Co.

发明人： Kelcy Jake Foster

IPC分类号： F01B3/00 ,  E21B43/26 ,  F04B53/22 ,  F16K3/24 ,  F16K5/02

CPC分类号： F01B3/0029 ,  F16K5/0271 ,  E21B43/2607 ,  F04B53/22 ,  F16K3/243

摘要： A closure element for a fluid end assembly that has two or more recessed grooves formed in its outer surface. The grooves are axially offset. A seal is placed in one and only one of the grooves. As wear occurs, the seal is relocated to one of the other grooves. Instead of a series of axially offset grooves in a single closure element, a kit may be formed from two or more otherwise identical closure elements, each with a single recessed groove at a different axial position. Another closure element has a series of ledge-like surfaces defining spaces within which a seal may be received. One outer surface surrounds one or more of the other surfaces. A seal is placed in one and only one of the spaces. As wear occurs, the seal is relocated to one of the other spaces.

公开(公告)号：US12078066B1

公开(公告)日：2024-09-03

申请号：US18341149

申请日：2023-06-26

申请人： Hyliion Holdings Corp

发明人： Alex William Ariapad ,  Michael Robert Notarnicola ,  Joshua Tyler Mook

IPC分类号： F01B29/10 ,  F02G5/00 ,  F15B1/26 ,  F16C32/06

CPC分类号： F01B29/10 ,  F02G5/00 ,  F15B1/265 ,  F16C32/0614

摘要： A method of pressurizing a closed-cycle engine includes performing a non-steady state operation in which a working fluid flows to or from a pressurized tank: i) to or from a plurality of sumps defined by respective ones of a plurality of cylinder-piston assemblies of the closed-cycle engine; or ii) to or from one or more air bearings associated with each one of the plurality of the cylinder-piston assemblies; or iii) both and performing, before and/or after performing the non-steady state operation, a steady-state operation in which the working fluid flows through the plurality of sumps and the one or more air bearings along a steady-state loop that is fluidly decoupled from the pressurized tank.

公开(公告)号：US20240280020A1

公开(公告)日：2024-08-22

申请号：US18170357

申请日：2023-02-16

申请人： Dana Motion Systems Italia S.R.L.

发明人： Federica FRANZONI ,  Fabio NATALI ,  Alessandro SASSI

IPC分类号： F01B3/02 ,  F01B3/00 ,  F01B3/10

CPC分类号： F01B3/02 ,  F01B3/0035 ,  F01B3/0085 ,  F01B3/103

摘要： Systems and methods for a variable displacement hydraulic motor. The hydraulic motor, in one example, includes a swash plate with a tilt angle, multiple piston assemblies configured to rotate about a drive shaft. In the motor, each of the piston assemblies includes an inner piston slideably coupled to an outer piston that mates with a cylinder in a cylinder block and a retainer device configured to inhibit axial movement of the outer piston in a first position and permit axial movement of the outer piston in a second position.

公开(公告)号：US12025009B2

公开(公告)日：2024-07-02

申请号：US17958873

申请日：2022-10-03

申请人： Microtecnica S.r.l.

发明人： Domenico Tafuni ,  Pierpaolo Mangione

IPC分类号： F16K11/07 ,  F01B3/00 ,  F01B25/10 ,  F16K27/04

CPC分类号： F01B25/10 ,  F01B3/0002 ,  F16K11/07 ,  F16K27/041

摘要： A valve for controlling the flow of hydraulic fluid to a hydraulic motor. The valve includes a sleeve and a spool. The sleeve includes a first fluid flow port for receiving hydraulic fluid from the supply line; a second fluid flow port for supplying hydraulic fluid to a second valve; a third fluid flow port for receiving hydraulic fluid from a first control line; a fourth fluid flow port for receiving hydraulic fluid from a second control line; and a fifth fluid flow port in fluid communication with the return line. The valve is arranged to be actuated to move the spool between a first position and a second position. When the spool is in the second position, the fifth fluid flow port is in fluid communication with the second, third and fourth fluid flow ports and the first fluid flow port is closed by the spool.

公开(公告)号：US20240200454A1

公开(公告)日：2024-06-20

申请号：US18541945

申请日：2023-12-15

申请人： Danfoss Power Solutions GmbH & Co OHG

发明人： Chris Shrive ,  Christian Feller ,  Matthias Liermann

IPC分类号： F01B1/06 ,  F01B25/02

CPC分类号： F01B1/0686 ,  F01B1/0675 ,  F01B25/02

摘要： A hydraulic control circuit for a hydraulic motor operable at least at two displacements, having a proportional speed control valve with a control valve spool continuously moveable by means of a force generated by a pilot pressure being controlled by a continuously, electrically adjustable pilot valve having an electrical actuator, wherein the control valve spool is moveable between a full-torque end position, a reduced-torque end position, and at least one intermediate position. A time related control current function is provided for controlling the current applied to the electrical actuator for controlling the pilot pressure including a pre-current portion with a constant non-zero current and a current ramp portion during which the current is raised or lowered continuously from a ramp starting current level to an intermediate current level. The current is changed abruptly to a switching current level at the end of the current ramp portion for allowing the movement of the speed control valve spool from one of the two end positions via the at least one intermediate switching position into the other end position.

公开(公告)号：US12000331B2

公开(公告)日：2024-06-04

申请号：US18077007

申请日：2022-12-07

申请人： MAINSPRING ENERGY, INC.

发明人： Adam Simpson ,  Shannon Miller ,  Matt Svrcek

IPC分类号： F02B71/04 ,  F01B11/00 ,  F02B25/08 ,  F02B63/04 ,  F02B71/00 ,  F02B75/28 ,  H02K7/18 ,  H02K35/02 ,  F01B7/02 ,  F02B1/12

CPC分类号： F02B71/04 ,  F01B11/001 ,  F02B25/08 ,  F02B63/041 ,  F02B71/00 ,  F02B75/282 ,  H02K7/1892 ,  H02K35/02 ,  F01B7/02 ,  F01B11/007 ,  F02B1/12

摘要： Various embodiments of the present invention are directed toward a linear generator, comprising: a cylinder having a cylinder wall and a pair of ends, the cylinder including a reaction section disposed in a center portion of the cylinder; a pair of opposed piston assemblies adapted to move linearly within the cylinder, each piston assembly disposed on one side of the reaction section opposite the other piston assembly, each piston assembly including a spring rod and a piston comprising a solid front section adjacent the reaction section and a gas section; and a pair of linear electromagnetic machines adapted to directly convert kinetic energy of the piston assembly into electrical energy, and adapted to directly convert electrical energy into kinetic energy of the piston assembly for providing compression work during the compression stroke.

公开(公告)号：US20240173642A1

公开(公告)日：2024-05-30

申请号：US18529235

申请日：2023-12-05

申请人： XDI Holdings, LLC

发明人： James Charles Juranitch ,  Alan Craig Reynolds ,  Raymond Clifford Skinner ,  Thomas Raymond Juranitch

IPC分类号： B01D3/00 ,  B01D1/14 ,  B01D5/00 ,  C02F1/10 ,  C02F103/10 ,  F01B23/08 ,  F01B23/10 ,  F22B1/24

CPC分类号： B01D3/007 ,  B01D1/14 ,  B01D5/0039 ,  B01D5/006 ,  C02F1/10 ,  F22B1/24 ,  C02F2103/10 ,  C02F2303/10 ,  F01B23/08 ,  F01B23/10

摘要： Embodiments of the present disclosure include a system for harvesting salt, and other valued material, and generating distilled water from at least one of a produced water and salt water. The system can include a direct steam generator (DSG) configured to generate saturated steam and combustion exhaust constituents. The system can include a separation system operating after the DSG, configured to separate salt from the saturated steam and combustion exhaust constituents in at least one of brine form and solid form. The system can include an energy recovery system that includes an expansion turbine configured to recover energy from the steam and exhaust constituents.

公开(公告)号：US11982225B2

公开(公告)日：2024-05-14

申请号：US18117903

申请日：2023-03-06

申请人： ACHATES POWER, INC.

发明人： Fabien G. Redon ,  Ashwin A. Salvi

IPC分类号： B60K1/02 ,  B60K6/26 ,  B60K6/28 ,  B60K6/30 ,  B60K6/46 ,  B60K17/22 ,  F01B7/14 ,  F02B75/28 ,  F02N11/04 ,  B60K6/38 ,  B60K17/02

CPC分类号： F02B75/28 ,  B60K1/02 ,  B60K6/26 ,  B60K6/28 ,  B60K6/30 ,  B60K6/46 ,  B60K17/22 ,  F01B7/14 ,  F02N11/04 ,  B60K2006/268 ,  B60K6/38 ,  B60K17/02

摘要： A hybrid drive system has two sources of driving power: a non-combustion drive system to provide mechanical torque and rotation to a driveshaft, and an opposed-piston, internal combustion engine configured to provide energy for the non-combustion drive system.

公开(公告)号：US11982186B1

公开(公告)日：2024-05-14

申请号：US18080638

申请日：2022-12-13

申请人： Walter B. Freeman

发明人： Walter B. Freeman

IPC分类号： F01B11/00 ,  F01B23/10 ,  F01B25/10 ,  F01B31/08 ,  F01K11/00 ,  F01B31/10 ,  H02K7/18

CPC分类号： F01B23/10 ,  F01B11/001 ,  F01B25/10 ,  F01B31/08 ,  F01K11/00 ,  F01B31/10 ,  H02K7/1884

摘要： A vapor powered electro-mechanical generator comprises a cylinder, which is sealed at both ends in which two pistons slidingly move in opposite directions simultaneously. A tube on which the pistons also slide lies at the center of the longitudinal axis of the cylinder. The tube transfers vapor from the inlet to the pressurized side of the pistons to actuate pistons, while one or more exhaust valves are simultaneously opened on the opposite end of the piston stroke allowing the expanded vapor to flow to a condensing system. The pistons consist of magnets at their peripheral circumference. As the vapor expands, the pistons magnets move through coils of conductive wire producing electric current. Further, repulsion magnets repel corresponding piston magnets to provide a cushioned rebound effect while conserving momentum of the generator.

公开(公告)号：US20240151225A1

公开(公告)日：2024-05-09

申请号：US18500892

申请日：2023-11-02

申请人： Dana Motion Systems Italia S.R.L.

发明人： Luca FONTANESI ,  Alessandro SASSI ,  David GAMBUZZI

IPC分类号： F04B53/14 ,  F01B3/00 ,  F04B19/22

CPC分类号： F04B53/14 ,  F01B3/007 ,  F04B19/22

摘要： The present disclosure relates to a zeroing device comprising a piston movable along an axis, at least one biasing member for biasing the piston along the axis, and an axially displaceable zeroing member limiting axial movement of the at least one biasing member. The present disclosure further relates to a variable displacement hydraulic unit including said zeroing device.