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A water diversion valve and a cleaning machine using the same
ActiveCN114688300BOperating means/releasing devices for valvesTableware washing/rinsing machine detailsEnvironmental engineeringWater diversion
The present application relates to a kind of water diversion valve and the cleaning machine of application have the water diversion valve, water diversion valve includes shell, fixed seat, movable column, drive assembly, shell has first water outlet, second water outlet, water diversion cavity is vertically arranged with the partition plate that it can be separated into corresponding first cavity of first water outlet and corresponding second cavity of second water outlet, the bottom of partition plate is provided with the opening that can be connected with first cavity and second cavity;The top of movable column is provided with the sealing plug that can be closed second water outlet when it rises to the top of second cavity, and the opening is closed when it falls to the bottom of second cavity.This application water diversion cavity of water diversion valve is directly connected with the water outlet of cleaning machine, improves the sealing performance of junction;The sealing plug of the present application is opened and closed alternately to first water outlet and second water outlet by movable column lifting, realizes the independent, absolute sealing of first water outlet and second water outlet, improves the sealing property and reliability under water diversion state, is conducive to improving water diversion effect.
Owner:NINGBO FOTILE KITCHEN WARE CO LTD
System, method, and network for controlling distribution of chemicals
A vehicle wash assembly at a vehicle wash location includes a chemical delivery device with a pneumatic drive mechanism operable to cause chemical to be received in a chemical chamber and pressurized chemical to be dispensed therefrom via a chemical outlet, and a control system communicatively coupled to the pneumatic drive mechanism and configured to cause the pneumatic drive mechanism to operate to cause the pressurized chemical to be dispensed from the chemical chamber via the chemical outlet. The control system receives instructions for operation of the chemical delivery device, and in response to receipt of the instructions, the control system analyzes the instructions, generates separate instructions for operating the chemical delivery device based on the analysis, and transmits the separate instructions to cause the chemical delivery device to undergo a dispensing operation according to the separate instructions.
Owner:SONNYS HFI HOLDINGS LLC
Products, systems and methods for controlling fluid dispensing
PendingUS20250332609A1Liquid surface applicatorsMixer accessoriesPhysical chemistryProcess engineering
Systems for controlling chemical dispensing from a chemical delivery device include means for dispensing a chemical, wherein during dispensing an amount of the chemical from the chemical delivery device, the means for dispensing the chemical draws an equal amount of the chemical into the chemical delivery device as the amount of the chemical dispensed. Methods involve causing the means for dispensing a chemical to dispense the chemical. Means for dispensing a fluid and means for mixing the dispensed chemical and fluid are also used in connection with the means for dispensing a chemical. Means for controlling dispensing such as by means for linearly controlling dispensing, along with means for controlling a dilution ratio, means for coordinating dispensing, and means for individually controlling are also used in connection with these means for dispensing a chemical, means for dispensing a fluid and means for mixing.
Owner:SONNYS HFI HOLDINGS LLC
Transmission mechanism and drive mechanism
The present invention discloses a transmission mechanism and a drive mechanism. The transmission mechanism includes a mounting seat, a drive shaft, and a first movable member. The drive shaft can rotate relative to the mounting seat. The first movable member and the drive shaft are synchronously rotated and assembled together, and the drive shaft can drive the first movable member to rotate relative to the mounting seat to two extreme positions and an intermediate position between the two extreme positions. The transmission mechanism also includes a second movable member sleeved outside the drive shaft. The second movable member can rotate relative to the mounting seat to a first position and a second position. An elastic body and a limiting structure are provided between the second movable member and the mounting seat, and the elastic body and the limiting structure cooperate to drive the second movable member to remain in or return to the first position. A transmission structure is provided between the drive shaft and the second movable member. The drive shaft rotates and drives the second movable member to rotate to a second position through the transmission structure. The second position corresponds to an extreme position. The transmission mechanism has the following advantages: a transmission mechanism can drive the two movable members to move to appropriate positions respectively to achieve three gear switching. The structure is simple, compact, and easy to operate.
Owner:INTEX IND (XIAMEN) CO LTD
Low force valves for drug delivery pumps
Disclosed are examples of valve systems and methods of operating the respective valve systems. An example valve system may include a valve body, an inlet component, an outlet component and a valve tube. The valve body may include a first void and a second void. The inlet component may be coupled to the first void and the outlet component may be coupled to the second void. The valve tube may include a side port and may be positioned through the valve body and coupled to the first void, the inlet component, the second void, and the outlet component. Other valve system examples may include including a valve body, a first septum, a second septum, a first piston, a second piston and a tube. The disclosed methods describe the interaction of the respective components of the respective valve system example.
Owner:INSULET CORP
Electro-hydraulic reversing valve
ActiveCN223434786UOperating means/releasing devices for valvesMultiple way valvesThermodynamicsElectromagnetic valve
The utility model discloses an electro-hydraulic reversing valve which comprises a pilot electromagnetic valve and a main valve. The pilot electromagnetic valve is detachably connected with the main valve; after the pilot electromagnetic valve is connected with the main valve, an oil cavity in the pilot electromagnetic valve is communicated with an oil way in the main valve; a first pilot control oil way, a second pilot control oil way, an outer oil supply way, an inner oil supply way, an outer oil discharge way and an inner oil discharge way in the main valve are all casting oil ways, and the number of each oil port is two. The oil paths in the main valve are all formed through casting instead of auxiliary holes, so that the impact resistance of the oil paths can be improved, oil leakage at conical plugs of the auxiliary holes is avoided, the pressure loss of hydraulic oil flowing in the oil paths can be reduced, and the through-flow capacity of the hydraulic oil in the oil paths is improved.
Owner:BEIJING HUADE HYDRAULIC INDAL GROUP
System, method, and network for controlling dilution rates in a vehicle wash
Controlling a dilution rate of mixed chemical dispensed by a fluid management system at a vehicle wash location involves, receiving, by a control system comprising a processor, flow rate data from at least one flow meter coupled to a chemical line of at least one mixing site. In response to the received flow rate data, using the control system to cause at least one metering device to adjust a flow rate of chemical passing through the chemical line. The control system further causes at least one integrated valve of a fluid delivery manifold to dispense motive fluid from a fluid outlet of said fluid delivery manifold. The control system controls an effective orifice area at least one of a valve orifice of the integrated valve or of the chemical line to thereby control the dilution rate.
Owner:SONNYS HFI HOLDINGS LLC
System, method, and network for controlling distribution of chemicals and fluids
A vehicle wash assembly for distribution of fluids at a vehicle wash location includes a vehicle wash component operable to dispense fluid into a fluid line for application onto a vehicle by a downstream applicator, and an inlet or outlet of the vehicle wash component is associated with a port configured with an adjustable effective orifice area. A control system receives instructions corresponding to timing information, a target flow rate and / or a target volume of the fluid to be dispensed from the outlet, analyzes the instructions, and generates separate instructions that differ from those received. The separate instructions include a time for when the vehicle wash component is to be actuated, a duration of operation upon actuation, and an effective orifice area of the port. Upon transmission, the separate instructions cause the vehicle wash component to dispense the fluid according to such instructions during a dispensing operation.
Owner:SONNYS HFI HOLDINGS LLC
Pneumatically driven chemical delivery devices and systems and methods of use
A chemical delivery device for use in a vehicle wash system includes a chemical chamber with a piston, a chemical inlet and a chemical outlet, and a one-way valve. A drive mechanism receives pressurized driving fluid from a pressurized fluid source, and a drive shaft is joined to the piston. During dispensing, the pressurized driving fluid causes the drive shaft to drive the piston to dispense an amount of the chemical, and the one-way valve is closed. During a resetting stroke, the pressurized driving fluid causes the drive shaft to retract the piston, and the one-way valve is open and permits passage of chemical therethrough for dispensing from the chemical chamber in a subsequent dispensing operation. After the resetting stroke, the pressurized driving fluid may retain the drive shaft in the retracted position and the drive mechanism is in an idle state until initiation of the subsequent dispensing operation.
Owner:SONNYS HFI HOLDINGS LLC
Fluid delivery manifold assembly
A manifold for use with a fluid delivery system in a vehicle wash includes a fluid passageway with at least one fluid inlet and at least one fluid outlet. At least one integrated valve includes a plunger housing having an air chamber and is configured to receive a valve limiter and a valve plunger arranged therein, which is movable between a closed position and an open position to block a valve orifice and to permit the passage of fluid from the fluid inlet through the valve orifice for dispensing from the fluid outlet. At least one actuator assembly including an actuator, and the valve limiter is configured such that the actuator adjusts a position of the valve limiter to adjustably control an effective valve orifice area of the valve orifice based on a distance of movement of the valve plunger to the open position.
Owner:SONNYS HFI HOLDINGS LLC
Multi-channel plug valve
The invention relates to the technical field of plug valves, and provides a multi-channel plug valve which comprises a valve body, a valve element, a valve element, a valve element and a valve element. A mounting space is formed in the valve cover; the plug cock is arranged in the valve cavity, can rotate around the central axis of the plug cock and can move along the central axis of the plug cock; the lining is arranged on the inner wall of the valve cavity and matched with the outer wall of the cock; the rotating source is arranged on the valve cover; the selective transmission mechanism is arranged in the mounting space and comprises an input end, a first output end and a second output end; the axial transmission part is movably arranged in the mounting space along the central axis of the cock and is in transmission fit with the second output end; the detection part is arranged on the valve body; and a controller. According to the multi-channel plug valve, the sealing state of the lining can be detected in real time, the plug cock is controlled to axially move to press the lining so as to compensate sealing, and then the sealing performance of the multi-channel plug valve is improved.
Owner:KEKE VALVE ZHEJIANG
Combination valve
The utility model relates to a combination valve which comprises a manifold block provided with a main flow channel, a liquid outlet flow channel, a plurality of valve cavities located between the main flow channel and the liquid outlet flow channel, and communicating flow channels used for communicating the main flow channel and the valve cavities respectively. The cover assembly is mounted on the manifold block, and a mounting cavity opposite to the valve cavity is formed in the cover assembly; the mounting cavity and the valve cavity are arranged in a separated mode through the valve assembly, and the valve assembly can move to control connection and disconnection of the valve cavity and the communicating flow channel; the driving assembly is arranged in the mounting cavity, is connected with the valve assembly and is used for driving the valve assembly to move; the communicating flow channel is provided with a first end communicated with the main flow channel and a second end communicated with the valve cavity, and the main flow channel is provided with a liquid inlet end; at least one communicating flow channel is obliquely arranged, and the second end of the oblique communicating flow channel is located on the side, away from the liquid inlet end, of the first end in the flowing direction of fluid in the main flow channel. The communication flow channel is arranged to be of an inclined structure, so that the flow in the communication flow channel can be increased.
Owner:HANGZHOU COBETTER SEMICONDUCTOR SEPARATION MEMBRANE CO LTD
Cooling module
The cooling module includes: a manifold being made of resin and including a plurality of housings joined to one another; and a rotary valve formed by arranging a valve body rotating about a rotation axis in a cylindrical valve chamber formed in the manifold. The manifold includes a plurality of internal flow paths through which fluid flows and a plurality of ports that are connected to a plurality of the internal flow paths and through which the fluid flows in or flows out. The rotary valve has a full communication mode in which, when the fluid is flowed in from one port of a plurality of the ports, the fluid can be flowed out from all the other ports.
Owner:AISIN CORP
A pneumatically controlled high-pressure balanced sewage two-position three-way reversing ball valve structure
ActiveCN116498794BOperating means/releasing devices for valvesHydro energy generationClosed chamberHigh pressure water
The present invention discloses a pneumatically controlled, high-pressure, balanced sewage, two-position, three-way reversing ball valve structure, comprising: a valve seat, a valve ball, and a valve ball centering sleeve installed within a valve body; the valve seat having three openings: a left opening and a right opening, located at the left and right ends of the valve seat, respectively, and a center opening located in the center of the valve seat; a port A located on the left side of the valve body, communicating with the center opening of the valve seat; a port B located on the right side of the valve body, communicating with the right opening of the valve seat; a high-pressure water wellhead connector connected to the left end of the valve body, the port of the high-pressure water wellhead connector being port P, forming a chamber C within the high-pressure water wellhead connector; a feedback piston sealing sleeve forming a closed chamber D at the right end of the feedback piston; chambers C and D being connected via a balancing pipe. The valve valve has reliable sealing performance, requires relatively low water cleanliness, and can be used in sewage reversing valves; it also features fast response speed and high flow rate.
Owner:ZHENGZHOU YIFENG RODLESS PUMP CO LTD
Refrigerant circuit and heat pump
The present invention relates to a refrigerant circuit, in particular a refrigerant circuit for a heat pump, and to a heat pump for heating and cooling a building. The refrigerant circuit comprises a first heat exchanger (8) configured to function as an evaporator or as a condenser, and a second heat exchanger (7) also configured to function as a condenser or as an evaporator.The refrigerant circuit further comprises a compression section (90) located downstream of the first heat exchanger (8) or downstream of the second heat exchanger (7), an expansion section (20) located downstream of the second heat exchanger (8) or downstream of the first heat exchanger (7), a first directional control valve (3) configured to supply refrigerant to the expansion section (20) and to discharge refrigerant from the expansion section (20), and a second directional control valve (4) configured to supply refrigerant to the compression section (90) and to discharge refrigerant from the compression section (90).
Owner:VIESSMANN HOLDING INTERNATIONAL GMBH
Chemical delivery assemblies and systems and methods of use
PendingUS20250332618A1Liquid surface applicatorsMixer accessoriesProcess engineeringMechanical engineering
A chemical delivery device for use in a vehicle wash system includes two or more chemical chambers, each with an inlet configured to receive chemical and with an outlet configured for dispensing the chemical; a piston arranged between the inlet and the outlet and including a one-way valve and a circumferential seal; and a drive mechanism for simultaneously driving the pistons. In a dispensing stroke, the drive mechanism drives the pistons to cause chemical dispensing, and the one-way valves are in the closed state resulting corresponding amounts of the chemicals being drawn into the chemical chamber via the inlets as to the amounts being dispensed. In a resetting stroke, the drive mechanism retracts the pistons, and the one-way valves are in the open state such that the corresponding amounts of the chemicals drawn in from the chemical supplies are transmitted through the pistons for dispensing in a subsequent dispensing operation.
Owner:SONNYS HFI HOLDINGS LLC
Multi-way valve and vehicle
Owner:ZHEJIANG GEELY HLDG GRP CO LTD +1
Chemical distribution and mixing systems and methods of use
An assembly for delivery of mixed chemical for use in a vehicle wash system includes a chemical delivery device for dispensing chemical having a piston with a one-way valve and a pneumatic drive mechanism; and a fluid delivery manifold configured to deliver motive fluid for mixing with the dispensed chemical having an integrated valve with a valve plunger therein configured to be pneumatically actuated. During a dispensing operation, chemical and fluid are dispensed and mixed at a mixing site of the assembly. During a resetting stroke of the chemical delivery device, the drive shaft and the piston are pneumatically retracted away from the outlet to a retracted position, and the one-way valve is in an open state and permits passage of chemical through the one-way valve for dispensing from the chemical chamber in a subsequent dispensing operation.
Owner:SONNYS HFI HOLDINGS LLC
Products, systems and methods for distribution of fluids and mixed chemicals
A fluid delivery manifold for use with a fluid delivery system includes a fluid passageway and at least one integrated valve, each with a plunger housing having an air chamber. The air chamber and the fluid passageway are non-fluidly coupled relative to each other. A valve plunger in the plunger housing blocks a valve orifice of the fluid outlet in a closed position to prevent passage of fluid, and opens to permit fluid to pass from a fluid inlet of the passageway through the valve orifice for dispensing from a fluid outlet. An actuator assembly coupled to each integrated valve includes an actuator configured to adjust a position of a valve limiter to adjustably control an effective valve orifice area of the valve orifice based on a distance of movement of the valve plunger to the open position.
Owner:SONNYS HFI HOLDINGS LLC
Proportional valve
ActiveUS12529430B2Operating means/releasing devices for valvesMultiple way valvesMechanical engineeringMechanics
A proportional valve includes a casing and a valve trim. The casing has at least one fluid inlet, a fluid outlet, at least one first connection passageway, at least one second connection passageway and an accommodating space. The first connection passageway is connected with the fluid inlet. The second connection passageway is connected with the fluid outlet. The valve trim is located in the accommodating space, including a flow splitter an adjusting rotor. The flow splitter has at least one third connection passageway and at least one fourth connection passageway. The third connection passageway is connected with the first connection passageway. The fourth connection passageway is connected with the second connection passageway. The adjusting rotor has a channel and at least one blocking portion. The adjusting rotor is rotatably disposed on the flow splitter so that the blocking portion blocks a part of the third connection passageway.
Owner:COOLER MASTER CO LTD
Hot water mixing valve
ActiveUS20250361941A1Operating means/releasing devices for valvesTemperatue controlMechanicsValve seat
A mixing valve including a body having first and second inlets, an outlet, and a mixing chamber. A first valve seat is located between the first inlet and the mixing chamber, and a second valve seat is located between the second inlet and the mixing chamber. A shuttle is moveable in the mixing chamber between the first and second valve seats and includes a first plug facing the first valve seat and a second plug facing the second valve seat. The plugs have trim surfaces that are one of, or a combination of, a fast-opening shape, a linear shape, and an equal percentage shape.
Owner:WATTS REGULATOR CO
Valve core and a pull-out faucet thereof
The present invention relates to a valve core. The valve core comprises a valve housing, a valve handle, a rotor, a driving plate, a movable valve sheet and a fixed valve sheet. The driving plate is disposed on the bottom of the rotor, the movable valve sheet disposed inside the valve housing and below the driving plate; the fixed valve sheet disposed inside the valve housing and located at the bottom of the valve housing. The driving plate has a limiting portion; the valve housing has two inner blocks. Only when the limiting portion is aligned with the limiting recess, the movable valve sheet is capable of sliding with the driving plate in a direction of closing inlet water, when the limiting portion is exposed to a periphery of the rotor, the limiting portion inserts into the limiting recess; and when the driving plate rotates in a state where the limiting portion and the limiting recess are misaligned, the limiting portion is blocked by the inner blocks, so as to stop the movable valve sheet from sliding with the driving plate in a direction of closing inlet water. The present invention also relates to a pull-out faucet.
Owner:NINGBO WANHAI VALVE TECH CO LTD
Double-water-outlet faucet structure
The utility model provides a double-water-outlet faucet structure. A first water pipe and a second water pipe which are independent are arranged in a stand column of the double-water-outlet faucet structure. The lower fixed connector is located at the axial upper end of the stand column, a first annular water channel on the peripheral side of the lower fixed connector is communicated with a first water pipe, the lower movable connector is rotationally arranged outside in a sleeving mode and provided with a first water outlet nozzle, the lower movable connector is sleeved with the lower rotary arm, an inner first water outlet channel is connected with the first water outlet nozzle, and a lower water outlet is formed in the tail end of the lower rotary arm. A second annular water channel on the peripheral side of the upper rotating arm is communicated with a second water pipe, the upper movable connector is arranged outside in a sleeved mode and provided with a second water outlet nozzle, the upper rotating arm is arranged outside in a sleeved mode, a second water outlet channel inside the upper rotating arm is connected with the second water outlet nozzle, and an upper water outlet is formed in the tail end of the upper rotating arm. Diversified water use requirements are met, water use convenience and flexibility are improved, the defect that installation is limited in places can be overcome, and the application range of faucet products is widened.
Owner:XIAMEN SANCHANG SANITARY WARE TECH CO LTD
System, method, and network for controlling distribution of chemicals and fluids
A vehicle wash assembly includes a chemical delivery device, a motive fluid delivery device, a mixing site fluidly coupled thereto for mixing dispensed chemical and motive fluid to form a mixture, and a control system integrated into the vehicle wash assembly and communicatively coupled to the chemical and fluid delivery devices, which causes a drive mechanism of the chemical delivery device to dispense chemical from the chemical outlet, and a valve of the motive fluid delivery device to dispense the motive fluid from the motive fluid outlet. The control system receives instructions for operation of the vehicle wash assembly, and in response, the analyzes the instructions, generates separate instructions for operating the chemical delivery device and the fluid delivery device based on the analysis, and transmits the separate instructions to cause the chemical delivery device and the fluid delivery device to operate according to the separate instructions.
Owner:SONNYS HFI HOLDINGS LLC
Products, systems and methods for distribution of fluids and mixed chemicals
A fluid delivery system for dispensing fluid in a vehicle wash includes at least one integrated valve, each with a plunger housing having an air chamber configured to receive a valve limiter. A valve plunger in the plunger housing has open and closed positions, and blocks a valve orifice when closed, and permits the passage of fluid through the valve orifice for dispensing from a fluid outlet when opened. An actuator assembly is coupled to each integrated valve, and each includes an actuator and the valve limiter. A control system is communicatively coupled to each actuator and is configured to receive a selection corresponding to a selected outlet pressure and based on the selection, causes the actuator assembly to adjust a position of the valve limiter to reach a target flow rate or a target outlet pressure of the motive fluid when the valve plunger is in the open position.
Owner:SONNYS HFI HOLDINGS LLC
Pressure swing adsorption device and rotary valve thereof
The present invention discloses a rotary valve, which includes: a valve body, which is a cylindrical structure, and is provided with three flow channel groups; and a valve sleeve, whose coaxial sealing sleeve is provided on the valve body, and the valve sleeve is evenly provided with multiple through holes, the inner end of each through hole extends to form a vertical groove, and the vertical groove is divided into three sections along the vertical direction, corresponding to the ports of different flow channel groups respectively. A switching valve is provided at the through hole, and the switching valve connects the through hole to the two sections of the vertical groove, thereby switching the corresponding two flow channel groups to a working state. The valve body rotates around the axis relative to the valve sleeve so that the multiple through holes are combined and connected with the ports of the two flow channel groups in the working state, thereby changing the process operation mode. Each through hole is connected to at most one port of the valve body. The present invention also discloses a pressure swing adsorption device. The rotary valve of the present invention can switch the working state of the flow channel group, realize online switching of the timing process, meet the demand for improvement of process conditions due to fluctuations in on-site raw materials, and enhance production flexibility.
Owner:CHINA PETROLEUM & CHEMICAL CORP +1
Bidirectional torque double-isolation release ball valve and assembling method thereof
The invention discloses a bidirectional torque double-isolation release ball valve and an assembling method thereof, the ball valve comprises a valve body and two ball valve assemblies, and a fluid channel is arranged in the valve body; each ball valve assembly comprises a ball valve element, an adjusting nut, a valve seat and a gland, the ball valve element is arranged in the valve body, an overflowing through hole is formed in the ball valve element, a first seat body and a second seat body of the valve seat are arranged on the two opposite sides of the ball valve element, the first seat body is connected with the edge of one end of the overflowing through hole, and the second seat body is connected with the edge of the other end of the overflowing through hole. The adjusting nut is arranged in the middle of the fluid channel in a screwed mode, the position of the adjusting nut can be axially adjusted relative to the fluid channel, the interior of the gland is through, the gland is arranged at the end of the fluid channel in a screwed mode, the position of the gland can be axially adjusted relative to the fluid channel, the adjusting nut can push the first seat body, and meanwhile the gland can form back pressure on the second seat body. According to the ball valve, reverse jacking force and return pressure can be applied to the ball valve element, and radial limiting of the ball valve element is achieved.
Owner:MATORLY (SHENZHEN) FLUID ENG CO LTD
Refrigerator
To shorten the time until a start of a heating operation from when a command of the heating operation is received again after stopping the heating operation.SOLUTION: If a heating operation or a defrost operation in which a coolant in a refrigerant in a refrigerant circuit circulates in the same direction as in a cooling operation proceeds immediately before a refrigeration cycle operation is stopped in an air conditioner 100, a position of a valve body 52 after a non-operation is maintained at a second position, or is moved to the second position. As a result, it is possible to shorten the time until the start of the heating operation from a non-operation state.SELECTED DRAWING: Figure 6
Owner:DAIKIN INDUSTRIES LTD
Chemical delivery devices and systems and methods of use
Chemical delivery devices for vehicle wash systems include a chemical chamber with an inlet and an outlet and a piston arranged therebetween. The piston includes a one-way valve. A drive mechanism moves the piston in an advancing and retracting direction. Driving the piston in the advancing direction results in the one-way valve closing, and an amount of the chemical on a first side of the piston is dispensed from the outlet and a corresponding amount of the chemical to the amount dispensed is drawn into the chemical chamber at a second side of the piston, via the inlet. Retracting the piston in the retracting direction results in the one-way valve opening and the corresponding amount of the chemical drawn in from the chemical supply is transmitted through the one-way valve from the second side to the first side of the piston for subsequent dispensing from the chemical chamber.
Owner:SONNYS HFI HOLDINGS LLC
Flow path switching device
ActiveUS12523309B2Operating means/releasing devices for valvesMultiple way valvesRotary valveElectric machinery
Disclosed is a flow path switching device including: a case including a first nozzle into which fluid is introduced, a second nozzle through which fluid is discharged, a plurality of inner outflow pipes through which fluid supplied from the first nozzle flows, a plurality of inner inflow pipes through which the fluid supplied to the second nozzle flows, and a flow path connection portion in which a space is formed to communicate the plurality of inner outflow pipes with the first nozzle or to communicate the plurality of inner inflow pipes with the second nozzle; a valve rotatably disposed in the space of the flow path connection portion, and having a first chamber connecting one of the plurality of inner inflow pipes and the first nozzle according to placement, and a second chamber connecting one of the plurality of inner outflow pipes and the second nozzle; and a motor disposed in one side of the valve and rotating the valve. Each of the first nozzle, the inner outflow pipe, and the flow path connection portion forms a flow path perpendicular to each other inside. A first chamber hole connecting the first chamber and a nozzle flow path formed inside the first nozzle is formed in the valve. A cross-sectional area of the nozzle flow path is reduced to a size corresponding to the first chamber hole from an inlet portion of the first nozzle towards the flow connection portion.
Owner:LG ELECTRONICS INC