364results about "Actuator accumulators" patented technology

An IFP is disclosed. The IFP includes a sealing channel formed axially about an outer diameter (OD), the sealing channel including at least two walls where the at least two walls of the sealing channel having a smaller OD than an inner diameter (ID) of a chamber and a channel is formed between the at least two walls. The IFP also includes an anti-tipping feature fixedly coupled with at least a portion of one wall of the sealing channel, the anti-tipping feature increasing a length of the IFP.

An IFP is disclosed. The IFP includes a sealing channel formed axially about an outer diameter (OD), the sealing channel including at least two walls where the at least two walls of the sealing channel having a smaller OD than an inner diameter (ID) of a chamber and a channel is formed between the at least two walls. The IFP also includes an anti-tipping feature fixedly coupled with at least a portion of one wall of the sealing channel, the anti-tipping feature increasing a length of the IFP.

An internal floating piston (IFP) (25) comprising: A sealing channel (2) formed axially around an outer diameter (OD) of the IFP, wherein the sealing channel comprises: At least two walls (3, 4), wherein the at least two walls of the sealing channel have a smaller OD than an inner diameter (ID) of a chamber; and a tilting protection feature (8) rigidly connected to at least one section of a wall of the sealing channel (2), wherein the tilting protection feature (8) increases the length of the IFP (25).

An internal floating piston (IFP) having circumferential seal groove 2 on its external surface between two walls 3, 4 of the external surface, and an anti-tipping feature 8 increasing a length of said

An accumulator includes: an exterior body including a bottom, a shell and a port; and a bellows provided inside the exterior body and having an S-shape being capable of expansion and contraction. In a case where the bellows has expanded maximally in the accumulator, the bellows has expanded from a free state where no load other than gravitational force is being applied to the bellows.

An auxiliary hydraulic system including an accumulator, a control valve, and a hydraulic connector. The accumulator connects to a primary hydraulic system including a hydraulic pump, a brake circuit, and a steering circuit. The control valve selectively allows or prevents flow from an accumulator to at least one of the brake circuit and the steering circuit. The hydraulic connector selectively connects an external source to the accumulator and the control valve.

The invention belongs to the field of energy accumulators, and provides a high-sealing-performance diaphragm type energy accumulator which comprises a lower shell, a middle shell and an upper shell, the middle shell is in threaded connection to the top of the lower shell, the upper shell is in threaded connection to the top of the middle shell, a main diaphragm is installed in the lower shell, and the main diaphragm is in threaded connection to the top of the middle shell. A standby diaphragm is installed in the middle shell, and a partition plate is further installed in the middle shell. The partition plate and the oil hole are arranged between the main diaphragm and the standby diaphragm, the isolation mechanism is used for shielding the oil hole, the standby diaphragm does not work at the beginning of work, hydraulic oil in the main oil cavity can flow into the main air pressure cavity when the main diaphragm reaches the fatigue limit and is damaged, and therefore the isolation mechanism automatically relieves shielding of the oil hole, and the working efficiency is improved. At the moment, the standby diaphragm can replace the main diaphragm to work, so that the service life of the energy accumulator is doubled, and the situation that a hydraulic system generates major accidents is avoided.

A hydraulic actuator with an integrated accumulator for compressible gas is provided. The hydraulic actuator may include a gas side and a hydraulic side separated by a piston.

The disclosure relates to an hydraulic accumulator, in particular a diaphragm accumulator, having an accumulator housing and a separating element disposed therein, which separates two media spaces from each other, wherein a weld seam is formed by a laser or electron beam welding process without any filler materials, in that at least a part of the wall parts delimiting the transition point are melted to form the weld seam, which closes off the transition point towards the surroundings, in a manner that is free of protrusions with respect to an outer circumferential surface of a connection element.

A method is provided for determining a gas charge pressure PcalcGC of a hydraulic accumulator within a hydraulic fluid system. The method includes receiving pressure decay data representing the pressure decay within a self-pressurizing hydraulic reservoir of the hydraulic fluid system as the self-pressurizing hydraulic reservoir depressurizes from an operating pressure of the self-pressurizing hydraulic reservoir towards atmospheric pressure. The method also includes calculating the gas charge pressure PcalcGC of the hydraulic accumulator using the received pressure decay data of the self-pressurizing hydraulic reservoir.

A hydraulic energy retention system includes a body with a piston separating a hydraulic fluid from a pressurized gas, a discharge port in fluid communication with the hydraulic fluid, and a stop operable to an engaged position to block movement of the piston past the stop and toward the discharge port. The hydraulic energy retention system may be implemented with a hydraulic fluid reservoir, such as a bootstrap reservoir.

The invention relates to a hydraulic system energy accumulator and an energy accumulator pressure detection method, and belongs to the technical field of aviation equipment vibration isolation installation. The energy accumulator comprises an energy accumulation cavity, a spring, an indicating rod and an energy accumulator piston; the energy storage cavity is provided with a storage end and a pressure end, and the storage end is connected with a hydraulic system communicating pipe; the indicating rod and the spring are arranged at the pressure end, the indicating rod is connected with the energy accumulator piston and moves along with the energy accumulator piston, and the pressure of the hydraulic system can be detected by detecting the position of the indicating rod; and the spring is sleeved on the indicating rod and is used for pressing the energy accumulator piston so as to compensate the pressure of the hydraulic system. According to the technical scheme, the pressure of the hydraulic system can be detected.

The invention discloses a modular hydraulic energy recovery device and a recovery method thereof, and relates to the technical field of hydraulic energy recovery. A high-pressure pipeline of a hydraulic system is connected with the three functional modules in parallel through a multi-way pipe fitting, and a modular energy recovery system is formed. The high-pressure module adopts the combination of a leather bag type energy accumulator and a throttle valve, energy absorption is carried out aiming at the working conditions of high system pressure and slow change, and the pressure is stably released by utilizing the elastic energy storage characteristic of the energy accumulator; the high-frequency module is provided with a diaphragm type energy accumulator which is high in response speed, and instantaneous pressure fluctuation is rapidly restrained by dynamically adjusting the opening degree of a throttling valve; the power generation module drives a power generator through a hydraulic motor, and transforms the over-limit energy stored by the energy accumulator into electric energy for storage. The main control module monitors the system pressure and the change rate thereof in real time, dynamically switches the working states of the modules according to preset logic, and introduces a machine learning algorithm to optimize a threshold decision, so that the system adapts to complex working conditions.

A method of inflating a bellows accumulator of a vehicle suspension system includes providing a housing with an accumulator port and an inflation port and inserting a bellows assembly within the housing. The bellows assembly includes an annular bellows wall at least partially defining a variable volume plenum. The bellows assembly is axially extendable between a retracted position and a fully extended position. The air chamber is in fluid communication with the inflation inlet. An energy storage chamber between the housing and the bellows assembly is in fluid communication with the accumulator port. The method further includes evacuating the energy storage chamber when the bellows assembly is not in the fully extended position such that a pressure less than atmospheric pressure is obtained within the energy storage chamber, and supplying pressurized gas to the inflation port.

The disclosure relates to a piston accumulator comprising an accumulator housing and a separator piston which is longitudinally moveably arranged therein and separates two media chambers from one another within the accumulator housing, wherein the accumulator housing is elastically formed in a sandwich-type structure from individual, partially differing layers in such a way that, with the influence of at least one external force, it allows for a curvature as a whole, starting from a starting state, and it returns to the starting state with the removal of the respective force.

A low-pressure liquid inlet manifold and a fracturing apparatus are disclosed. The low-pressure liquid inlet manifold includes a main liquid inlet pipe and N liquid feeding pipes; the N liquid feeding pipes are arranged in sequence; each of the liquid feeding pipes includes a third end and a fourth end, the third end is communicated with the main liquid inlet pipe, and the fourth end is configured to provide low-pressure liquid to a plunger pump; and the low-pressure liquid inlet manifold further includes at least one auxiliary accumulator, which is connected with the main liquid inlet pipe and is arranged corresponding to at least one of the N liquid feeding pipes, an orthographic projection of the auxiliary accumulator on an axis of the main liquid inlet pipe overlaps with an orthographic projection of a corresponding liquid feeding pipe on the axis.

The invention discloses a sliding nozzle hydraulic control system and method.The method comprises the steps that the system comprises an oil inlet pipeline, an oil return pipeline, a working energy storage device, an accident energy storage device, an accident closing device, a high-speed switching device, a low-speed switching device and a pressure releasing device, and the oil inlet pipeline is used for providing hydraulic oil for the system; the oil return pipeline is used for recovering hydraulic oil in the system; the working energy storage device is used for absorbing hydraulic impact and hydraulic fluctuation in the system; the accident energy storage device is used for storing hydraulic energy and providing the hydraulic energy for the hydraulic cylinder which urgently closes the sliding nozzle; the accident closing device is used for urgently closing the hydraulic cylinder, and the quick switching device is used for controlling quick opening and quick closing of the hydraulic cylinder. The low-speed switch device is used for controlling low-speed opening and low-speed closing of the hydraulic cylinder; and the pressure release device is used for releasing pressure in the hydraulic cylinder. Through the technical scheme provided by the invention, the safety of hydraulic control of the sliding gate nozzle can be improved.

A fluid control system (100, 200) for controlling a flow of a process fluid can include an actuator (104, 204) and an energy storage system (102, 202). The actuator can be provided to actuate the valve (120) in order to control the flow of the process fluid, and the energy storage system can actuate the actuator. An energy storage system (100, 200) can include an accumulator (106, 206) in fluid communication with an actuator and a manual pump (108, 208) arranged to charge the accumulator (106, 206).

An IFP is disclosed. The IFP includes a sealing channel formed axially about an outer diameter (OD), the sealing channel including at least two walls where the at least two walls of the sealing channel having a smaller OD than an inner diameter (ID) of a chamber and a channel is formed between the at least two walls. The IFP also includes an anti-tipping feature fixedly coupled with at least a portion of one wall of the sealing channel, the anti-tipping feature increasing a length of the IFP.

1. Method 2. The invention relates to a method for producing at least one part of an accumulator housing (10) for a hydraulic accumulator, said method having the following method steps: - providing accumulator housing parts (12, 14) which are to be connected to one another along mutually adjacent end sides (16, 18), of which at least one end side (16) has a material accumulation (20); - moving the adjacent accumulator housing parts (12, 14) together in such a way that the material accumulation (20) comes into contact with the adjacent end side (18); and simultaneously or subsequently - melting the material accumulation (20) by means of a welding process, and further moving the two accumulator housing parts (12, 14) together during the welding process with a predefinable pressing force; and simultaneously - forming a weld seam running along a connecting point (42) between the accumulator housing parts.

A medicament preparation system includes a water purification module and a medicament proportioning module that is interoperable with a replaceable fluid circuit. The fluid circuit includes a purified water inlet, a product medicament outlet, and a plurality of pumping tube segments. At least a first concentrate container is connected by at least a portion of the fluid circuit to the product medicament output and a first concentration measurement sensor station is positioned in a flow path. A controller is programmed to calculate iteratively a concentration of a first concentrate from the first concentrate container and the purified water from a signal generated by the first concentration measurement sensor station and to regulate one or both of a first pumping actuator engaged with the first pumping tube segment and a second pumping actuator engaged with the second pumping tube segment, responsively to the concentration of the first concentrate and water.

The utility model relates to a piston type energy accumulator which is provided with an energy accumulator shell (10), a separating piston (12) can be guided in the energy accumulator shell in a longitudinal displacement mode, the piston type energy accumulator is provided with a damping piston (18) with a check valve (20), and the damping piston can move into a fluid connector (24) in the energy accumulator shell under the condition that a throttling gap (22) is formed. The throttle gap is a cylindrical annular space which is formed by adjacent walls (28, 32) of the energy store housing and the damping piston, and the check valve has a valve ball (36) which is loaded by the energy store, a damping valve (68) which, in the closed position thereof, blocks a fluid path between the fluid connection and a piston fluid chamber (38) located between the separating piston and the accumulator housing and, in the open position thereof, releases the fluid path, the damping valve (68) being located in the region of an internal thread (26) of the fluid connection and having a longitudinally displaceable valve plate (70), an orifice (72) is introduced into the valve plate coaxially to a longitudinal axis (60) of the piston accumulator.

The disclosure relates to a piston accumulator comprising an accumulator housing and a separator piston which is longitudinally moveably guided therein and separates two media chambers from one another inside the accumulator housing, in particular separating a media chamber with a working gas from another media chamber with a fluid, such as hydraulic oil, wherein the separator piston has two piston parts which are formed as discs with the same outer diameter and which are securely connected to one another and held at a distance from one another via an elastically flexible piston rod, which, with the influence of at least one external force, allows for a curvature as a whole, starting from a starting state, and returns to the starting state with the removal of the respective force.

The mechanism in the invention provides a solution for automated, remote regulating high pressure air in the industrial air tube system. With double layer electromagnetic valves, the mechanism assure the comfortable and safe working platform for humans and equipment. The mechanism comprises: mechanical valve, 20 L pneumatic tank, pressure gauge, sealed metal box, static disc, electromagnetic relay with movable stem, capacitor, low pressure air tube, high pressure air tube, electrical wire, electromagnetic relay.

The disclosure relates to a piston accumulator having an accumulator housing in which a separating piston is longitudinally movably guided which separates two fluid chambers, in particular separates a fluid chamber having a working gas from a further fluid chamber having an operating fluid, such as hydraulic oil, and which separating piston has a damping device, wherein, in addition to the damping device, an inflow device is provided which interacts with the damping device for damping a fluid flow out of the accumulator housing by forming a throttle along a fluid path and which releases a further fluid path by bypassing the other fluid path that has the throttle in order for fluid to flow into the accumulator housing.

The disclosure relates to a hydraulic accumulator, in particular in the form of a piston-type accumulator, having a separating element which is arranged in an accumulator housing and separates two fluid chambers from one another in a fluid-tight manner, in particular a closed accumulator chamber comprising a working gas from a liquid chamber comprising an operating liquid such as hydraulic oil, wherein a fluid connector is fluidically connected to one of the fluid chambers, wherein outside the accumulator housing and fixed thereto is an attachment part with a magnetic field generating device which acts on a fluid connection between the fluid connector of the accumulator housing and a fluid connector of the attachment part in such a way that magnetisable particles can be separated in a cleaning manner from the fluid passing through the fluid connection.

The invention relates to the technical field of hydraulic control, and discloses a loading oil cylinder hydraulic system of a loading vehicle, which comprises a motor pump set, a loading oil cylinder, an oil cylinder upper cavity energy accumulator set and an oil cylinder lower cavity energy accumulator set. The device is characterized in that a rodless cavity of the loading oil cylinder is communicated with the oil cylinder upper cavity energy accumulator group through an oil cylinder upper cavity loading pipeline; a rod cavity of the loading oil cylinder is communicated with the oil cylinder lower cavity energy accumulator set through an oil cylinder lower cavity loading pipeline. Under the dynamic working condition, the volume change of the two working cavities caused by the displacement of the loading oil cylinder piston is absorbed or compensated by the oil cylinder upper cavity energy accumulator group and the oil cylinder lower cavity energy accumulator group which are communicated with the loading oil cylinder piston, so that the fluctuation of the pressure in the two cavities is inhibited, and the stability of the output loading force is maintained. According to the invention, the stability of dynamic loading force when the loading vehicle runs on an uneven road surface can be obviously improved, and the accuracy of dynamic loading test is ensured.

The invention relates to the technical field of compressor lubricating oil station energy accumulators, in particular to an energy accumulator liquid level automatic adjusting system which can achieve automatic oil filling and nitrogen filling and improve the filling efficiency and the system operation stability, an energy accumulator is connected with a liquid level transmitter, and the liquid level transmitter, an oil supply switch valve and a nitrogen filling switch valve are all connected with a distributed control system. When the liquid level in the energy accumulator is low to the first liquid level, the distributed control system transmits a signal to close the oil supply switch valve, and the oil pump injects oil to the energy accumulator through an opening in the oil supply perforated check valve and the oil filling check valve; when the liquid level in the energy accumulator reaches the second liquid level, the oil supply switch valve is opened to enter an oil supply waiting state, and at the moment, the oil pump still injects oil into the energy accumulator until the liquid level reaches the third liquid level; when the liquid level in the energy accumulator reaches a third liquid level, the nitrogen charging switch valve is kept in a closed state, and at the moment, an oil-gas balance state is achieved; and when the liquid level in the energy accumulator reaches the fourth liquid level, the nitrogen charging switch valve is opened to charge nitrogen.

Systems and methods for creating a pressure pulse within a pipeline are disclosed. The method includes isolating a barrel of a pipeline inspection gauge (PIG) station from the pipeline, pressurizing the barrel up to a selected pressure, and opening an isolation valve between the barrel and the pipeline, thereby creating the pressure pulse.

An agricultural machine comprises a tool-holder chassis (200), at least one inter-row unit (100), and a hydraulic system (600) comprising a delivery line (301) suitable for being connected to a primary pump (P) to feed pressurized oil to a hydraulic actuator (103) of the inter-row unit and a return line (302) connected to a reservoir (303); the hydraulic system (600) comprises a divider-distributor (6) arranged in the delivery line (301) and having a primary outlet (60) connected to the hydraulic actuator (103) of the inter-row unit (100) and a plurality of secondary outlets (61) connected to the services of the tool-holder chassis (200); a distributor (4) is arranged in the primary outlet (60) of the divider-distributor (6) and has a first outlet (41) connected to the hydraulic actuator (103) of the inter-row unit and a second outlet (42) connected to the return line (302) leading to the reservoir (303); the hydraulic system (600) being configured so that the distributor (4) can be constantly crossed by pressurized oil from the divider-distributor (6).