419 results about "Hydraulic connection" patented technology

The invention discloses a semi-submersible fan-oscillating water column wave energy device integrated device with heaving plates. The semi-submersible fan-oscillating water column wave energy device integrated device comprises floating fan equipment, a central platform, buoys, hydraulic heaving plate connecting rods, an upper-layer permeable heaving plate, a lower-layer non-permeable heaving plate, a control system, a wind speed monitoring sensor and a laser wave surface displacement sensor. The floating fan equipment is arranged at the upper part of the central platform; the buoy is formed by connecting a permeable protective cover, a hydraulic connecting rod, an OWC device, an air pressure enhancing device, an internal supporting rod, a telescopic supporting plate and a pneumatic turbine. The upper-layer permeable heaving plate and the lower-layer non-permeable heaving plate are connected to the bottom of the buoy through the hydraulic heaving plate connecting rod; the control system is positioned in the lower horizontal plate of the central platform; the wind speed monitoring sensor and the laser wave surface displacement sensor are arranged on a stand column of fan equipment. The fan operation efficiency and the system reliability are improved, the whole life cycle cost is effectively reduced, and good durability and maintainability are achieved.

The invention discloses a reservoir group multi-target collaborative scheduling method, device and equipment, a medium and a product, and relates to the field of reservoir group joint scheduling. Firstly, according to the geographic position, the engineering characteristic and the drainage basin requirement of the reservoir group, the core function level and the cooperation relation of the reservoir group in a target task are determined, and the flood prevention and drought resistance role of the reservoir group is positioned; performing spatial hierarchy division and scheduling topological relation abstraction on the reservoir group, and constructing a scheduling topological structure of multi-target collaborative scheduling of the reservoir group; constructing a reservoir group spatial topological relation graph based on the real hydraulic connection of the reservoir group; determining a multi-target simulation scheduling flow of the reservoir group according to the flood prevention and drought resistance role of the reservoir group, the scheduling topological structure and the spatial topological relation graph of the reservoir group; and performing hydraulic state transfer simulation according to the multi-target simulation scheduling process, determining a hydraulic state matrix and a combined scheduling scheme meeting multi-target cooperation, and performing reservoir group cooperative scheduling according to the hydraulic state matrix and the combined scheduling scheme, so that the overall benefit can be maximized.

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.

An electric drive for a vehicle comprises: an electric machine, a stator connected to a housing and comprising stator end-windings, a rotor rotatable relative to the stator, and a driveshaft connected to the rotor; a transmission to transmit a rotary movement from the driveshaft to a driveline; a sump containing fluid to cool and / or lubricate the electric machine and the transmission; a hydraulic arrangement comprising at least one bi-directional pump, a first suction line hydraulically connected with the pump, a stator path for cooling the stator, a second suction line connected with the pump, and a transmission path for cooling the transmission; a valve arrangement with multiple valves configured such that fluid is either supplied from the sump through the first suction line to the stator path, or through the second suction line to the transmission path.

The invention discloses a self-adaptive adjustment strip tillage machine, and belongs to the technical field of agricultural machinery. The strip tillage machine comprises a rack assembly, and a subsoiler assembly, a strip tillage assembly, a pressing assembly and a hydraulic source assembly are arranged on the rack assembly; at least one subsoiler assembly is provided with a soil moisture content detection device, the signal output end of the soil moisture content detection device is connected with a controller, the pressing assembly comprises a pressing roller frame hinged to the rack assembly, a pressing roller is installed on the pressing roller frame, a hydraulic motor is connected to the pressing roller, and a hydraulic position adjusting assembly is connected between the pressing roller frame and the rack assembly. The output end of the controller is electrically connected with the hydraulic source assembly, and the hydraulic source assembly is in hydraulic connection with the hydraulic position adjusting assembly and the hydraulic motor. The soil moisture content detection device can automatically detect the water content of soil, converts the water content of the soil into an electric signal and transmits the electric signal to the controller, and the controller can adjust the pressing force of the pressing assembly and the rotating speed of the pressing roller according to the water content of the soil.

The application relates to the technical field of ecological pig breeding, and through the structural setting of a breeding component, ecological pig breeding work is facilitated; a third control motor controls the rotation of a conducting belt, ecological pigs can move, stains are transmitted through the conducting belt, can be guided to the guide and discharge pipe and the grid guide and discharge seat for guiding and discharging, a pressurizing control seat controls the extension and retraction adjustment of a scraper through a hydraulic connection seat, so that the scraper can contact the conducting belt to clean the surface of the conducting belt, and an electric control hydraulic telescopic rod changes the height of a support rack through extension and retraction, so that the support rack drives the bottom supporting plate to move, so that the conducting belt, the fixed side block and the third control motor can move in coordination, facilitating maintenance work; through the structural setting of a massage processing component, ecological pig massage work is facilitated; a massage sleeve rod rotates on a bearing seat through a rotating control rod, can contact the ecological pigs to massage the ecological pigs.

The invention belongs to the field of engineering machinery, and discloses a forklift loader and a fork hydraulic system.The fork hydraulic system comprises a first oil cylinder and a second oil cylinder, rod cavities between the first oil cylinder and the second oil cylinder are communicated with each other, a rodless cavity of the first oil cylinder is connected with a first sidesway working oil way, and a rodless cavity of the second oil cylinder is connected with a second sidesway working oil way. A rodless cavity of the second oil cylinder is connected with a second lateral displacement working oil way; and a multi-way valve to which the first side shift working oil path and the second side shift working oil path are hydraulically connected. The two oil cylinders can be driven to generate synchronous transverse movement on the opposite sides, and therefore synchronous lateral movement hydraulic driving is achieved. The distance between the fork knives of the pallet fork is adjusted in a non-manual mode, goods can be conveniently taken by the pallet fork, the left-right position adjustment of heavy goods loaded by the pallet fork on the pallet fork portal frame can be achieved, and the heavy goods can be conveniently and accurately stacked.

A braking system for a motor vehicle for actuating hydraulically actuated wheel brakes, comprising electrically actuated inlet and outlet valves for each wheel brake, a first and a second electrically actuated pressure source, and a reservoir, wherein the first pressure source is hydraulically connected on the pressure side to the inlet valves of a first brake circuit via a first isolating valve, and is additionally hydraulically connected on the pressure side to the inlet valves of a second brake circuit via a second isolating valve, wherein the second pressure source comprises a first and a second pressure outlet, wherein the first pressure outlet is hydraulically connected to the inlet valves of the first brake circuit, and the second pressure outlet is hydraulically connected to the inlet valves of the second brake circuit, wherein the reservoir comprises a first chamber, a second chamber, and a third chamber,wherein the first pressure source is hydraulically connected to the first chamber on the suction side, wherein a first suction inlet of the second pressure source is hydraulically connected to the second chamber, and wherein a second suction inlet of the second pressure source is hydraulically connected to the third chamber, wherein the outlet valves of the first brake circuit are hydraulically connected to the second chamber, and the outlet valves of the second brake circuit are hydraulically connected to the third chamber.

The invention relates to an electrohydraulic steering system (1a) for a vehicle, comprising a steering angle sensor (150), a steering control device (29) that is signal-connected to the steering angle sensor (150), a steering cylinder (75) that is connected to one or more wheels (70) of the vehicle, and a steering unit (50) that is mechanically connected to the steering control device (29) and hydraulically connected to the steering cylinder (75). The steering control device (29) comprises an electric actuator (29a) that is configured to actuate the steering unit (50) based on a steering angle setpoint received from the steering angle sensor (150) in order to adjust a steering angle of the vehicle.

The invention relates to the technical field of hydrogeological exploration, and discloses a same-hole different-diameter water pumping test device for multi-aquifer hydraulic connection exploration, the same-hole different-diameter water pumping test device comprises a shell and a detector, the detector is hung in the shell, the upper side of the shell is internally provided with a water inlet, and the shell is internally provided with a buckle mechanism; the buckle mechanism comprises a fixing plate, an extrusion ring is connected to the outer portion of the fixing plate in a clamped mode, a connecting pipe is fixedly connected to the interior of the extrusion ring, a clamping groove is formed in the extrusion ring, a rotating column is rotationally connected to the interior of the fixing plate, a clamping plate is fixedly connected to the outer portion of the rotating column, and a first spring is arranged on the upper surface of the clamping plate. A second spring is arranged on the lower surface of the clamping plate. The buckling mechanism is not affected by moisture, fixing failure or device damage caused by environmental change of the water absorption expansion material is avoided, firm and stable connection between the extrusion ring and the shell is ensured, and the reliability of hydraulic connection exploration data of multiple aquifers is improved.

A robot has a body, a hydraulic control system physically coupled to the body, and a hydraulically-actuated component physically coupled to the body. The hydraulically-actuated component is hydraulically coupled to the hydraulic control system by a hydraulic hose. The hydraulic hose has a length, at least a portion of which extends from a first end to a second end, and a diameter, wherein the diameter of the hydraulic hose at both the first end and the second end is a first diameter, and wherein the at least a portion of the length includes a tapered section in which the diameter of the hydraulic hose decreases, continuously and monotonically, to a second diameter, the second diameter being less than the first diameter. The body includes a restricted region through which the hydraulic hose passes in traversing a path between the hydraulic control system and the hydraulically-actuated component.

The application discloses a rock drill and a control system thereof. The control system is used for controlling a drill bit of the rock drill. The control system comprises an impact oil cylinder, a propelling oil cylinder, an impact control valve, a propelling sensor and a controller. The controller is electrically connected to the propelling sensor. The impact control valve is hydraulically connected to the impact oil cylinder. The controller is electrically connected to the impact control valve to obtain a flow of an oil circuit of the impact oil cylinder which is matched with a pressure of an oil circuit of the propelling oil cylinder when the pressure of the oil circuit of the propelling oil cylinder detected by the propelling sensor changes. The rock drill and the control system thereof have the beneficial effect that the impact frequency of the impact oil cylinder is matched with the pressure of the oil circuit of the propelling oil cylinder.

The invention relates to an electric machine (1) having a rotor (3), a stator (2), a plurality of winding elements (5) in the form of hollow conductors, which form individual coils of a winding (4) of the electric machine (1) and are each part of a cooling circuit of the electric machine (1), and having a plurality of external phase terminals (L1-L3) electrically connected to the winding elements (5). According to the invention, a hydraulic connection portion (15) to which the winding elements (5) are hydraulically connected and a seal (27) having a plurality of through-openings (28) in which the ends (8) of the winding elements (5) are each arranged are provided, wherein the hydraulic connection portion (15) and the seal (27) have opposite surfaces (29, 30) which overlap one another in order to seal the individual connections of the winding elements (5) at the hydraulic connection portion (15).

A modular electrochemical energy storage system comprises a plurality of modules. These include: at least one energy storage module, which is configured for the electrochemical storage of energy and has a first housing of a first housing type; and at least one control module, which is configured as an inverter and control unit for at least partial control of the energy storage system and comprises a second housing of a second housing type. The first housing and the second housing each comprise at least one housing opening on their upper housing sides and lower housing sides. In this case, a plurality of modules can be stacked vertically one on top of the other, regardless of their housing design, in such a way that, in the case of respective two modules which are vertically adjacent in the stack, a housing opening on the housing lower side of the upper of the two modules overlaps a housing opening on the housing upper side of the lower of the two modules in such a way that, by means of these overlapping housing openings, a vertical line routing for the line-bound connection of a module which is located in the stack (directly or indirectly) above the lower of the two modules is made possible. The connection can be, in particular, an electrical and / or a hydraulic connection.

The invention relates to an intravascular blood pump comprising a pumping device having a pump portion and a drive portion, wherein the pump portion comprises a pump housing having a primary blood flow inlet and a primary blood flow outlet hydraulically connected by a primary passage, and the drive portion comprises a stator and a rotor rotatable about a rotational axis and configured to rotate a primary impeller configured to convey a primary blood flow along the primary passage from the primary blood flow inlet to the primary blood flow outlet, the drive portion further comprising a secondary blood flow inlet and a secondary blood flow outlet hydraulically connected by a secondary passage extending through an axial gap between the rotor and the stator and a secondary impeller arranged at a drive portion end of the rotor and rotatable about the rotational axis together with the rotor.

This invention relates to the field of physical simulation research technology for salt structures, and more particularly to a physical simulation device and method for the formation process of salt structures. In this invention, salt particles are placed at the bottom of a container, a flexible substrate is arranged on top of the salt particles, an armature is placed inside the flexible substrate, and a pressure bag is placed on the flexible substrate, connected to a hydraulic connection port. This invention can determine the evolution process of salt structures by simulating and analyzing the spatial distribution of salt structures, the magnitude and variation of salt structure stress, the stratigraphic deposition process and its influence on the salt structure formation process, and realize the reduction process of salt structures through physical simulation experiments.

The utility model belongs to the field of agricultural machinery, and discloses an anti-skid diverter valve group, a hydrostatic four-wheel drive system and agricultural machinery. The anti-skid diverter valve set is provided with a main oil inlet, a first working oil port, a second working oil port and a diverter valve, and bypass oil ways are arranged at the two ends of the diverter valve. The control valve is used for controlling hydraulic oil of the main oil inlet to be shunted to the first working oil port and the second working oil port through the diverter valve, or controlling the hydraulic oil of the main oil inlet to flow to the first working oil port and the second working oil port through the bypass oil way; and the pressure fine adjustment valve is arranged behind the diverter valve and is hydraulically connected with the first working oil port and the second working oil port. Whether hydraulic oil of the main oil inlet needs to be forcibly shunted or not can be controlled through the control valve, and when shunting is needed, the flow of the front drive motor and the flow of the rear drive motor can be forcibly shunted through the diverter valve so as to enhance the anti-skid effect; moreover, by arranging the pressure fine adjustment valve, the split ratio of the split hydraulic oil can be adjusted in a self-adaptive mode, and the purposes of reducing vibration and impact, reducing pressure loss and saving energy can be achieved.

A mounting box is for being mounted on a trailer front. The mounting box extends along a width, a height and a length and is limited by a front surface including a flat or curved alignment area. The alignment area extends in the length of the mounting box and measures at least 1 m, at least 1.5 m or at least 2 m in a length direction defined by the length of the mounting box. The mounting box includes a connection section, wherein the connection section includes a plurality of box connectors fixedly mounted on the mounting box for providing an electrical, pneumatic or hydraulic connection with corresponding truck connectors. The connection section is arranged above or below the alignment area in a height direction defined by the height of the mounting box, so that the alignment area provides a continuous surface which is uninterrupted by the box connectors.

The invention relates to a thermal management system (10) for a vehicle, having at least one coolant module (100) of a coolant circuit and at least one refrigerant module (200) of a refrigerant circuit, the thermal management system (10) having at least one carrier structure (14) for receiving the coolant module (100) and the refrigerant module (200), wherein the carrier structure (14) is designed to fasten the thermal management system (10) to the vehicle, and wherein the thermal management system (10) has at least one hydraulic connection element (300) for hydraulically connecting the coolant module (100) to the refrigerant module (200). According to the invention, the hydraulic connection element (300) has at least one substantially rigid first hydraulic connection section (302a) and at least one substantially rigid second hydraulic connection section (302b), the first hydraulic connection section (302a) being designed to be movably mounted relative to the second hydraulic connection section (302b) by means of at least one compensating element (303a, 303b, 303c, 303d).

The utility model belongs to the technical field of engineering machinery and provides an external confluence logic valve, an excavator hydraulic system and an excavator, the external confluence logic valve comprises a cartridge valve, a pressure oil inlet, a reversing valve and a pressure oil outlet, the cartridge valve is provided with a working cavity, a spring control cavity and a valve core driving cavity, the pressure oil inlet is communicated with the valve core driving cavity, and the reversing valve is communicated with the working cavity. The reversing valve comprises a first working side and a second working side, the first working side is hydraulically connected to the pressure oil inlet, the second working side is hydraulically connected to the spring control cavity, the reversing valve is used for guiding hydraulic oil of the pressure oil inlet to the spring control cavity or used for pressure relief of the spring control cavity, and the pressure oil outlet is communicated with the working cavity. The reversing valve can directly guide hydraulic oil of the pressure oil inlet to the spring control cavity, so that the valve element of the cartridge valve is rapidly closed, and the response speed of closing of the cartridge valve is greatly increased.

This application pertains to the field of industrial vehicles and discloses a steering hydraulic system and a forklift. The steering hydraulic system includes a steering gear with first and second oil outlets; a steering cylinder with a first connecting oil passage between its first end and the first oil outlet, and a second connecting oil passage between its second end and the second oil outlet; and a booster cylinder, including a first booster cylinder disposed in the first connecting oil passage and a second booster cylinder disposed in the second connecting oil passage. Both the first and second booster cylinders include a small piston cylinder and a large piston cylinder located at both ends. The large piston cylinder is hydraulically connected to the oil outlet of the steering gear, and the small piston cylinder is hydraulically connected to the cylinder chamber of the steering cylinder; and a replenishing valve, which is a replenishing and balancing oil passage disposed between the small piston cylinders of the first and second booster cylinders. By adding a booster cylinder, this application achieves a boosted drive effect, making steering lighter and more flexible. Furthermore, by setting up a replenishing valve, it can be used to achieve oil balance between the two cylinders in a timely manner.

A method for controlling a hydraulic volume in a system including a power brake hydraulically connected to a driving dynamics control. The method includes generating a control signal using the driving dynamics control and providing a control signal for the power brake, for providing hydraulic volumes for the driving dynamics control. The method further includes performing a control of the driving dynamics, returning the hydraulic volume from the driving dynamics control, after the control of the driving dynamics has ended, to a reservoir via previously opened circuit isolating valves, via which the driving dynamics control is connectable to the reservoir. The method also includes closing the circuit isolating valves and controlling the brake pressure in the driving dynamics control using a power piston arranged in a power cylinder, in the event that an active braking maneuver is initiated before or while returning the hydraulic volume.

The invention relates to an intravascular blood pump (1) comprising a pumping device (11) having a pump portion (3) and a drive portion (4), wherein the pump portion (3) comprises a pump housing (2) having a primary blood flow inlet (211) and a primary blood flow outlet (22) hydraulically connected by a primary passage (30) and the drive portion (4) comprises a stator (40) and a rotor (41) rotatable about a rotational axis (10) and configured to rotate a primary impeller (31) configured to convey a primary blood flow along the primary passage (30) from the primary blood flow inlet (211) to the primary blood flow outlet (22), the drive portion (4) further comprises a secondary blood flow inlet (23) and a secondary blood flow outlet (24), the secondary blood flow inlet (23) and the secondary blood flow outlet (24) are hydraulically connected by a secondary passage extending through an axial gap (401) between the rotor (41) and the stator (40) and a secondary impeller (42) arranged at a drive portion end (DSE) of the rotor (41) and rotatable about the rotational axis (10) together with the rotor (41), the secondary impeller (42) comprises one or more secondary impeller blades (421) configured to convey a secondary blood flow along the secondary passage from the secondary blood flow inlet (23) to the secondary blood flow outlet (24) in a direction towards a pump portion end (PSE) of the pumping device (11), the rotor (41) is mounted in a blood cleaning radial slide bearing (47) having an inner rotor bearing surface (4211) and an outer rotor bearing surface (4311), and the secondary impeller (42) forms the inner rotor bearing surface (4211) of the radial slide bearing (47).

The cooling device (8) for a winding (9a, 9b) comprises a support (11) having a first face (11a), a second face (11b) opposite the first face and a first hydraulic connection (12) connected to a first end of the support, the support having a central opening (11c) opening onto the first face and the second face, each face of the support being configured to come into contact with a winding (9a, 9b) wound around the central opening of the support, the hydraulic connection being configured to be supplied with a cooling fluid. The cooling device is made of an electrically insulating ceramic. Figure for the abstract: Fig 3

The anti-leakage valve comprises a valve seat body, an outer sleeve semi-sealed gate valve body and an embedded full-sealed gate valve body, the outer sleeve semi-sealed gate valve body and the embedded full-sealed gate valve body are symmetrically arranged, hydraulic connecting mechanisms connected with a hydraulic control system are symmetrically arranged outside the valve seat body, and each hydraulic connecting mechanism comprises a hydraulic oil cylinder body, an inner piston rod and an outer piston cylinder; an inner piston block is fixedly connected to the end, away from the outer sleeve semi-sealed gate valve body, of the inner piston rod, an outer piston sleeve is fixedly connected to the end, away from the embedded full-sealed gate valve body, of the outer piston cylinder, and a self-locking piece A and a self-locking piece B are arranged at the top of the outer sleeve semi-sealed gate valve body and the top of the embedded full-sealed gate valve body correspondingly. Hydraulic oil is provided for the interior of the well shut-in oil cavity through the hydraulic control system, so that the semi-sealing effect of the outer sleeve semi-sealing gate valve body on a well mouth and the full-sealing effect of the embedded full-sealing gate valve body on the well mouth can be achieved; and when the wellhead is semi-sealed or fully-sealed, the externally-sleeved semi-sealed gate valve body and the internally-embedded fully-sealed gate valve body can be quickly locked.

The present invention relates to a hydraulic brake system of a bicycle, in particular an electric bicycle, comprising a hydraulic unit, which is designed to modulate a hydraulic brake pressure, a control unit, which is designed for the controlled actuation of the hydraulic unit, a brake caliper, and a first brake line, which hydraulically connects the hydraulic unit and the brake caliper to each other, wherein the hydraulic unit does not have a pump, and wherein the brake system is designed to provide a predetermined minimum hydraulic rigidity between the hydraulic unit and the brake caliper.

The invention belongs to the technical field of operation machinery and provides an emergency hydraulic control system and operation machinery. The emergency hydraulic control system comprises a brake unit, an emergency pump unit and a main pump unit. The brake unit comprises a brake valve group and a parking brake oil cylinder, the brake valve group is provided with a first main interface, an emergency interface and a parking brake port, the parking brake port is hydraulically connected to a rod cavity of the parking brake oil cylinder, and the brake valve group is used for guiding pressure oil of the first main interface and the emergency interface to the parking brake port; the emergency pump unit is used for supplying oil to the emergency connector, the emergency pump unit, the emergency connector, the parking braking port and the parking braking oil cylinder form a parking braking control emergency oil way, the main pump unit is used for supplying oil to the first main connector, and the main pump unit, the first main connector, the parking braking port and the parking braking oil cylinder form a parking braking control main oil way. According to the system, locking of the brake disc can be relieved when a parking brake control main oil way loses pressure, and the dragging function of the whole machine is achieved.

The invention relates to an establishment and configuration method of an engineering design and planning model, in particular to application of a stochastic programming model considering real-time constraints in optimal scheduling of a reservoir hydropower station. According to the method, a time period is divided into a current time period and a future time period, discretization description is carried out on water flow in the future time period by adopting a random water flow mode network, and a model objective function is established with the goal of maximizing the expected generating capacity of a reservoir group system in a dispatching period; and configuring model constraint conditions including a water balance equation, upstream and downstream hydraulic connection, generating capacity, reservoir capacity limitation, output limitation and initial and boundary conditions. Meanwhile, the method further provides a step of cutting the model mode network, the water flow mode network is simplified in a systematic and operable mode, and therefore the calculation efficiency and the real-time performance of the model are improved.

A redox flow battery includes a cell arrangement and a measuring apparatus for determining the charging state. The measuring apparatus comprises includes a hydraulic connecting line which connects the first tank to the second tank so that there is a permanent electrical connection between the electrolyte liquids in the two tanks. The measuring apparatus includes at least two electrodes. A first electrode is arranged directly in the positive electrolyte circuit. A second electrode is arranged directly in the negative electrolyte circuit. The redox flow battery includes a control apparatus which is designed such that it can detect a voltage difference between two electrodes.

A drive unit (100) for a motor vehicle (105) comprises a machine housing section (300) with an electric machine (115) and a transmission housing section (305) with a transmission (130), as well as a hydraulic system (135) for cooling and / or lubricating thermal and / or mechanical consumers in the machine housing section (300) and in the transmission housing section (305). The hydraulic system (135) comprises a pump system (200, 600) with a first pump (601). The machine housing section (300) has a first suction point (310) which is hydraulically connected to the first pump (601) via a first suction line (225), and the transmission housing section (305) has a second suction point (400) which is hydraulically connected to the first pump (601) via a second suction line (230). Here, the first pump (601) is designed as a gear pump, which includes more than two externally toothed pump gears (611, 612, 613).