Abstract: A combination shower arm and water filter having an integrated design for attachment between a water pipe behind a shower wall and a showerhead. The combination shower arm and water filter including a body having a first hollow arm and a second hollow arm connected to a central cartridge holding portion. The filter holding portion has a central opening with a filter cartridge or element removably held in a hollow chamber formed above the filter holding portion by means of a cap that is removably secured to the an upwardly extending annular portion formed on the filter holding portion. Water entering the combined shower arm and filter assembly through the first hollow arm is directed into the hollow chamber for passage through filter media in the filter cartridge or element before it exits through the second hollow arm and out a showerhead.

Abstract: A shower nozzle comprises a base and a joint, wherein the base includes a cover and a watering plate, the cover includes a connecting hole formed at a central portion thereof, and the cover includes a plurality of watering apertures arranged thereon; the joint includes a screwing mount and a coupling member, the screwing mount includes a peripheral tab extending from a lower end of an outer rim thereof, an engaging bore fixed on a lower end of an inner wall thereof, and a fitting projection attached around an outer periphery of the engaging bore, and the coupling member includes a screw portion secured on an upper end of an outer periphery thereof, and includes a number of outlets disposed on a lower end of the outer periphery thereof.

Abstract: The invention relates to an apparatus and a method for injecting a multiple-phase jet with a variable direction and/or opening, by the fluidic interaction between the multiple-phase jet and one or more actuation jets.

Abstract: A shower plate and a water-saving shower using the same are disclosed. The shower plate provided in a head body of shower used to supply fluid along an inner path thereof, the shower plate includes a plurality of spray holes configured to spray the supplying fluid out, wherein a predetermined amount of the spray hole are direction changing spray holes comprising a direction changing parts projected inwardly there from. The water-saving shower includes a shower plate provided in a head body of a shower used to supply fluid along an inner path thereof, the shower plate comprising a plurality of spray holes configured to spray the supplying fluid out, wherein a predetermined amount of the spray hole are direction changing spray holes comprising a direction changing parts projected inwardly there from, and a filter provided in the head body to filter foreign substances contained in the supplying fluid before the supplying fluid reaches the shower plate.

Abstract: The invention relates to a device for spraying water, provided with a seal support (21) arranged between the body (1) and the perforated sheet (23) and in contact with the above. The seal support is mounted such as to be able to be removed from the body (1) with the joint (20). The above finds application in the production of non-woven materials.

Abstract: A nozzle for dispensing a random pattern of liquid adhesive filaments. The nozzle may include first and second air shim plates, an adhesive shim plate and first and second separating shim plates. The first and second air shim plates each have respective pairs of air slots. Each air slot has a process air inlet and a process air outlet and the air slots of each pair converge toward one another such that the process air inlets are farther apart than the process air outlets in each pair. The adhesive shim plate includes a plurality of liquid slots each with a liquid outlet. Four process air outlets are associated with each of the liquid outlets. The process air slots are adapted to receive pressurized process air and the liquid slots are adapted to receive pressurized liquid adhesive. The pressurized process air discharges from each group of the four process air outlets and forms a zone of turbulence for moving the filament of liquid adhesive discharging from the associated liquid outlet in a random pattern.

Abstract: The present invention aims at making it possible to easily fill liquid into a droplet spraying and applying head module, while saving work. The droplet spraying and applying head module includes a droplet spraying and applying head and a tank. The droplet spraying and applying head includes a liquid chamber for containing liquid and a plurality of nozzles communicating with the liquid chamber, and sprays droplets through the nozzles The tank contains liquid to be supplied to the liquid chamber, and communicates with the liquid chamber. The droplet spraying and applying head and the tank are coupled to each other with a coupling member. A revolute joint is interposed between the coupling member and the droplet spraying and applying head.

Abstract: A spraying head for bathing comprises an outer housing and an inner housing. In a center of a top edge of the outer housing is mounted a locking seat having plural water outlet openings and outer threads, and an engaging section mounted with a water-stop ring is formed on a lower end of the locking seat. The inner housing is mounted in the outer housing, and the inner housing is combined with a water outlet panel and is mounted with a locking assembly having inner threads and an abutting flange. The inner threads of the locking assembly are threaded with the outer threads of the locking seat in such a manner that the abutting flange is abutted against the water-stop ring, so as to form a sealing condition. And a bolt cooperates with a spacer and a nut enabling the water outlet panel to fix in the locking seat.

Abstract: Disposable cup for preparing, applying and preserving a paint to be set up on a paint spray gun characterized in that it includes on one of its end faces a closable vent device (7) forming a vent valve with valve duct (22) and valve plug (25) which allows when opened, to let the air pass for occupying the inner volume that empties and when closed, to close liquid-tightly the opening (6) of air passage to form a container for the preparation of the paint and then to form a pot for the preservation of the leftover paint. This invention is of interest to manufacturers of paint spray guns.

Abstract: The present invention provides a device for reducing the amount of water or other fluid discharged at a tap (4), which device comprises a body member (1) having an inlet adapted to be connected to a supply of water or other fluid, dual outlets through which the fluid is to be discharged to the locus, one fluid path between said inlet and said outlet is controlled by a flow/pressure responsive valve mechanism (10) located in the inner fluid path (9) between said inlet and outlet.

Abstract: A shower head structure includes a front cover disc, a water outlet disc, a joint base, a water stopper body and a water stopper. The shower head body is installed to the joint base, and the water stopper body is connected to the water outlet disc, and the water stopper is installed into the hollow hole of the water stopper body. When water flows into the shower head body, the water pressure pushes the water stopper and the water gasket to block the hollow hole and stop water coming out from outlet disc, but the water will come out from the periphery of the water stopper body instead. If an accessory is installed, the water stopper is pushed to interconnect a passage, so that the water will be supplied to the accessory from the middle of the front cover disc to produce a variety of splashes.

Abstract: The invention concerns a water spraying device comprising a filter and a perforated plate which can be removed by being slid respectively through an opening or a hole emerging into a well provided in the body. A pin being inserted in the well to maintain two plugs of the opening and of the holes when the pin is entirely inserted in the well.

Abstract: The present invention aims at making it possible to easily fill liquid into a droplet spraying and applying head module, while saving work. The droplet spraying and applying head module includes a droplet spraying and applying head and a tank. The droplet spraying and applying head includes a liquid chamber for containing liquid and a plurality of nozzles communicating with the liquid chamber, and sprays droplets through the nozzles The tank contains liquid to be supplied to the liquid chamber, and communicates with the liquid chamber. The droplet spraying and applying head and the tank are coupled to each other with a coupling member. A revolute joint is interposed between the coupling member and the droplet spraying and applying head.

Abstract: A nozzle assembly for use in atomizing and generating sprays from a fluid. The nozzle assembly includes two members, each with generally planar surfaces, that are joined together. A first set of channels is formed in the generally planar surface of a first one of the members to form, in cooperation with the generally planar surface of the second of the members, a plurality of filter passageways. A plenum chamber is formed in the first member. The plenum chamber is in fluid communication with and downstream of the plurality of filter passageways. A second set of channels is formed in the generally planar surface of the first member to form, in cooperation with the generally planar surface of the second member, a plurality of nozzle outlet passageways. These nozzle outlet passageways are in fluid communication with the plenum chamber.

Abstract: Provided are a nozzle and a related substrate treatment apparatus. The substrate treatment apparatus includes a process chamber, a supporting member disposed in the process chamber to support substrates, and a nozzle disposed in the process chamber to supply treatment fluid. The nozzle includes an outer tube along which a plurality of spraying holes are formed and which has a first end that is closed and an inner tube inserted into the outer tube through a hole formed on a second end of the outer tube.

Abstract: The invention relates to a shower head containing a cup-like housing (1) that, in particular, is injection molded out of plastic. The cup bottom has an opening (3) for placing a connection element (4) therethrough. A spray disk element (7) is to the housing and can be joined to said housing (1) by means of a simple plugging-in, snapping-in or turning. The shower head is comprised of two parts and, optionally, of a separate seal (8, 15, 20).

Abstract: A shower head for purifying water includes a filter cartridge positioned within in a holding part, a purified water flow path passing through a purification material and a raw water flow path not passing through the purification material. A flow path switching valve switching between the purified and raw water flow paths is incorporated in a head part. A delivery flow switching valve positioned downstream of the flow path switching valve switches between a straight delivery port and a shower delivery port. The valves are controlled independently of each other. A germicidal ceramic and/or sintered magnetic body is installed in the flow path between the valves.

Abstract: A water spreader arrangement for use in an evaporative air cooler in which the spreader includes an inlet leading to generally vertical projections disposed over several levels. The projections are adapted to divide a single stream of water entering the inlet into many outlet streams, all of which have a predetermined ratio of flow rates. The outlet streams can be fed to an evaporative pad of an evaporative cooler. In a preferred form, the outlet streams have substantially the same flow rate. Preferably, a cooler incorporating this water spreader arrangement would include several spreaders around the upper periphery of the evaporative pads.

Abstract: A nozzle for use with a fire hose is capable of varying a discharge pattern while maintaining the total water discharge amount at a fixed level. A first tube 4 is connected to a fire hose, a second tube 5 is screwed onto the first tube, and a throttle valve 40 is disposed on the inside of the second tube. A throttled portion 10 between the second tube and the throttle valve maintains the total water discharge amount at a fixed level. The position of the second tube 5 is varied by rotating a grip 42, and thus the total water discharge amount setting is varied. A third tube 13 is screwed onto the second tube, and a fourth tube 14 is screwed onto the third tube. The position of the third tube 13 is varied by rotating a grip 60, and thus the discharge pattern is varied. The position of the fourth tube 14 is varied by rotating a grip 66, and thus the flow rate of a self-protection water spray is regulated.

Abstract: A combination shower arm and water filter having an integrated design for attachment between a shower wall and a showerhead. The combination shower arm and water filter includes a housing having a number of components that may be easily manipulated, and which may be connected to any available showerhead, without the need of special tools. The combination shower arm and water filter allows an attached showerhead to be extended, moved or rotated into more accessible positions by actuation of the movable portions.

Abstract: According to one embodiment of the invention, a flow conditioning system for fluid jetting tools includes a housing having a plurality of jet nozzle openings and a fluid straightener disposed within the housing. The fluid straightener is defined by one or more vanes, and the vanes form a plurality of flow channels within the housing. Each flow channel is associated with at least one jet nozzle opening.

Abstract: A liquid sprayer includes a casing (1) having a flow-through channel composed of sequentially joined inlet portion (2) formed as a converging tube, a cylindrical portion (3) and an outlet portion (4) formed as a conical diffuser. A length of cylindrical portion (3) is not less than a radius thereof. A cone angle of the diffuser forming the outlet portion (4) of the flow-through channel is greater than a cone angle of the converging tube forming the inlet portion (2) of the same channel. Alternatively, the converging tube forming the inlet portion of the flow-through channel is made conoid-shaped. Implementation of the liquid sprayer allows steady-state fine-dispersed liquid flow to be generated at the minimal energy consumption.

Abstract: A burner (1), fed with a mixture of fuel and air, comprising a body (2) consisting of two half-shells having a plane of symmetry, inside said body a Venturi tube (3) being defined, provided with and inlet (4) into which said mixture of fuel and air is introduced, said Venturi tube (3) communicating upwardly with a distributing chamber (5) of said mixture of fuel and air, said distributing chamber (5) communicating upwardly with a burner head (8), closed upwardly by a diffuser (9), on which openings are made for the outflow and the subsequent combustion of said mixture of fuel and air, said distributing chamber (5) exhibits a first portion (6) and a second portion (7), said first portion (6), communicating with said Venturi tube, comprising at least a first stretch (6a; 6c; 6e) having a cross section of substantially constant width and at least a second stretch (6b; 6d) having cross section that increases progressively along a direction parallel to said plane of symmetry towards an end of said distributing cha

Abstract: A process and apparatus for atomizing a fluid is disclosed herein. The fluid is mixed with an atomizing fluid in a plurality of locations and passed through a nozzle.

Abstract: A shower head having a plurality of nozzles, with the exterior finish of both the shower head housing and the nozzles being consistent. For example, both the shower head and the nozzles may have either a chrome or a brass exterior finish. The nozzles of the shower head of the present invention each include a nozzle insert positioned therein, with the nozzle insert having a flexible nozzle tip protruding from the nozzle. Each nozzle insert includes an passageway in fluid communication with the water inlet of the shower head whereby water introduced into the shower head is ejected from the shower head through the passageway in the nozzle insert. The flexibility of the nozzle tip provides a convenient mechanism for eliminating build-up of, e.g., calcium or other deposits by manually flexing the nozzle tip.

Abstract: Apparatus and methods are provided for a fluid fertilizer distributor 10, 200, 300, or 400 for distributing fluid fertilizer conducted from a supply vessel 11 to each of a plurality of applicator lines 44. The fluid distributor may regulate a fluid fertilizer flow rate by selectively moving a flow restrictor 50, 250, 350, or 450 relative to the distributor housing. The distributor housing may include a supply inlet port 12, 212, 312, or 412 and a plurality of distributor out ports 16, 216, 316, or 416 each for fluid communication with a respective one of the plurality of applicator lines 44. The fluid distributor may separate the fluid fertilizer into a plurality of fluid flow paths prior to reducing the pressure in the fluid to avoid gas flashing or vaporization prior to separation. Thereby, fluid distribution may be effected upon a substantially liquid fluid within the fluid distributor, which may result in substantially uniform fertilizer application, with reduced rate variation between applicator lines.

Abstract: A fluid jetting device is comprised of: a plurality of chambers arranged in a matrix form; nozzles formed in the plural chambers, respectively; a fluid pressure applying portion arranged on at least one planes of the plural chambers; a plurality of fluid pool sub-streams for supplying fluids to the plural chambers; a fluid pool main stream connected to one edges of the plural fluid pool sub-streams; and a fluid supplying portion for supplying a predetermined fluid to the fluid pool main stream. The fluid supplying portion is connected to a portion of the fluid pool main stream in the vicinity of this fluid pool main stream along a longitudinal direction thereof.

Abstract: A showerhead which automatically adjusts the outlet pressure of the water in accordance with changes in water pressure, and eliminates the operation of a faucet, thus enabling showers to be taken comfortably. The showerhead (1) spurts the water, which is flowing from a water source to the specified pipes, through the outlet holes (H) of the shower nozzle (5). The shower nozzle (5) comprises waterproof elastic materials such as silicon rubber or the like. The elastic surface of the shower nozzle (5) incorporates outlet holes (H) which can be enlarged and reduced in accordance with changes in water pressure inside the showerhead (1).

Abstract: A water spreader arrangement for use in an evaporative air cooler in which the spreader includes an inlet leading to generally vertical projections disposed over several levels. The projections are adapted to divide a single stream of water entering the inlet into many outlet streams, all of which have a predetermined ratio of flow rates. The outlet streams can be fed to an evaporative pad of an evaporative cooler. In a preferred form, the outlet streams have substantially the same flow rate. Preferably, a cooler incorporating this water spreader arrangement would include several spreaders around the upper periphery of the evaporative pads.

Abstract: An irrigation system for supplying aerated water to plants includes a diffuser. Oxygen is diffused into water by the diffuser to generate aerated water. The aerated water is supplied to an irrigation device which supplies the aerated water to the plants.

Abstract: A flow path switching device comprising two flow paths having pressure losses different from each other, and a valve body provided corresponding to one of the two flow paths which has a lower pressure loss, the two flow paths being switched by opening/closing the flow path having the lower pressure loss with the valve body, and a shower unit having the flow path switching device. It is possible to provide a low pressure-loss flow path switching device for which it is not necessary to open/close the two flow paths at the same time and which is simple in construction and can save space.

Abstract: A constant flow apparatus for adapting a fluid flow passing through a pipe at constant value comprises a tubular body to be mounted inside the pipe, an orifice disposed at the output end side of the tubular body, a movable needle with a flat tip portion positioned opposite the orifice, a spring supporting the needle with appropriate elastic force, and an elastic tubular sealing member having a circumferential bulging portion provided on the outside of the tubular body to cover the tubular body. The constant flow apparatus can be fixedly mounted in the pipe irrespective of the diameter of the pipe, and adapt the fluid flow passing through the pipe, preventing the needle from vibration.

Abstract: A water spreader arrangement for use in an evaporative air cooler in which the spreader includes an inlet (28) leading to generally vertical projections (38) disposed over several levels. The projections (34, 37, 38) are adapted to divide a single steam of water entering the inlet (28) into many outlet streams, all of which have a predetermined ratio of flow rates. The outlet streams can be fed to an evaporative pad of an evaporative cooler. In a preferred form, the outlet streams have substantially the same flow rate. Preferably, a cooler incorporating this water spreader arrangement would include several spreaders around the upper periphery of tho evaporative pads.

Abstract: A burner nozzle having a hot face, side surfaces, and a plurality of internal gas flow passages and comprising a plurality of slits oriented in at least two different directions, wherein a selected number of the slits are formed in the hot face and/or side surfaces. The optimized location and depth of the slits relieve stresses that arise from temperature differences within the burner nozzle, caused by operation in high temperature furnaces, thereby extending the life (time to failure by fracture) of the burner nozzle.

Abstract: A hollow bar is provided in a bathroom and connected with a faucet 10 and a shower head 1. The hollow bar comprises a slide bar 3 for the hook 2 of the shower head or a grip bar 15 for a user. Water treating material such as a filter medium, ion exchange resin and ceramics is placed in the hollow bar and water jetted from the faucet 10 passes the water treating material in the hollow bar. The water is treated by the water treating material and the treated water is guided to and dispensed from the shower head.

Abstract: A liquid jetting head includes a nozzle plate, a liquid passage plate and a sealing plate. The nozzle plate is provided with a plurality of nozzle orifices. The liquid passage plate has a first face and a second face which are opposite to each other. The liquid passage plate is provided with a plurality of grooves which are arranged in a first direction perpendicular to a longitudinal direction of the groove on the first face, each groove having a communication port which passes through from the first face to the second face. The sealing plate for sealing opening faces of the grooves. The sealing plate is jointed to the first face so that a plurality of pressure generating chambers are formed. The nozzle plate is jointed to the second face such that the communication holes are communicated with the nozzle orifices respectively.

Abstract: A water mist cooling system including a supply of water at a supply outlet. A plurality of misting nozzles are serially connected by hollow tubing means to form a line having two ends. A pump has an inlet connected to the supply outlet, and an outlet connected to a first of two ends of a line of nozzles. The pump is controlled whereby water is pumped by the pump at a preselected pressure through said hollow tubing means to the misting nozzles and thence exiting the nozzles as water mist to the atmosphere. Pressure regulator means is connected to the other of said ends of the line of misting nozzles to provide a line flushing function.

Abstract: A selected range arc settable spray nozzle with pre-set table precipitation rate in which the arc of coverage adjustment is coupled to an upstream flow throttling valve. As the arc of coverage is adjusted, the opening of the upstream flow throttling valve is proportionally adjusted to maintain the precipitation rate substantially constant independent of arc of coverage adjustments. Upstream flow throttling achieved by use of pre-selected number of larger slots for desired flow whose opening area is varied as the arc is being set. The precipitation rate is set by adjusting the throttling valve to provide the desired flow rate for the maximum arc of coverage setting. A pressure compensating valve may also be provided.

Abstract: A shower device having a hollow body is disclosed. The body has a water inlet end and a water outlet end configured with respect to the water inlet end. The hollow body is installed with filtering materials. The water inlet end is installed with a ball joint which can rotate through 360 degrees for being connected with a water supply tube. The ball joint has channel; water flows through the channel to the body. The water outlet end is installed with a cover. The cover is installed with a plurality of water outlet holes.

Abstract: To supply a Multi-tube extruding equipment that is capable of producing uniform film of thickness variation that is minimized to almost “zero” level. This equipment 1 comprises Joint 2 that connects this equipment and the fluid coating material supply equipment by hoses etc. A bunch of tubes 3 of which one ends 3a at the inlet of the fluid coating material are fastened to the Joint 2 and the other ends 3b at the outlet of the material are lined up in a single plane and connected to the die lips 5 in the cross machine direction Slit 5a which converts the fluid material flown in from the inlet 3a and flown out from the outlet 3b of the tubes into a film of a pre-determined thickness, and extrudes out the film of the width A through the die lips 5.

Abstract: The system for injecting gas for a detonation projection gun does not incorporate mechanical closing valves or systems for the supply of combustible gas or other inert additive compounds such as nitrogen, argol, helium or the like. On the contrary, the supply of gas or compounds occurs directly and separately to the detonation chamber (1) through a series of independent passages, one for the comburant and at least another passage for the combustibles, each passage being comprised of an expansion chamber (8) and of a plurality of distribution conduits (9) having a reduced cross-section and/or extended length.

Abstract: A method and apparatus for flowing liquid metal through a casting nozzle includes an elongated bore having at least one entry port, at least one upper exit port, and at least one lower exit port. A baffle is positioned proximate to the upper exit port to divide the flow of liquid metal through the bore into at least one outer stream and a central stream, the outer stream flowing through the upper exit port and the central stream flowing past the baffle and toward the lower exit port. The baffle is adapted to allocate the proportion of liquid metal divided between the outer stream and the central stream so that the effective discharge angle of the outer stream exiting through the upper exit port varies based on the flow throughput of liquid metal through the casting nozzle.

Abstract: A prostrate garden sprinkler base comprises a prostrate main body provided with a hose connector, a spray tube member in communication with the hose connector, and a shield for concealing and protecting the spray tube member. The shield is provided with a plurality of through slots which are arranged in such a pattern that water streams emitted by jet nozzles of the spray tube member are sprayed out via the through slots of the shield for watering a garden, lawn, golf course, and the like.

Abstract: A water mist cooling system including a reverse osmosis apparatus for producing pure water at an outlet. A plurality of misting nozzles are serially connected by hollow tubing means to form a line having two ends. A pump has an inlet connected to the outlet of the reverse osmosis apparatus, and an outlet connected to a first of two ends of a line of nozzles. The pump is controlled whereby pure water is pumped by the pump at a preselected pressure through said hollow tubing means to the misting nozzles and thence exiting the nozzles as pure water mist to the atmosphere.

Abstract: There is disclosed a showerhead apparatus for radical-assisted deposition including a showerhead of a two-stair structure separated by a given distance, which has a first buffer for uniformly distributing a raw material gas and a second buffer for uniformly distributing a plasma gas, wherein a plasma is generated within the showerheads and the raw material gas sprayed into the plasma is constantly maintained, thus forming a uniform thin film on a wafer or a substrate.

Abstract: A hollow bar is provided in a bathroom and connected with a faucet 10 and a showerhead 1. The hollow bar comprises a slide bar 3 for the hook 2 of the showerhead or a grip bar 15 for a user. Water treating material such as a filter medium, ion exchange resin and ceramics is placed in the hollow bar and water jetted from the faucet 10 passes the water treating material in the hollow bar. The water is treated by the water treating material and the treated water is guided to and dispensed from the showerhead.

Abstract: A sprayer device includes a housing coupled to a water reservoir, a block having a passageway and a number of outlets. A locking member is slidably received in the passageway of the block to block some of the outlets of the block alternatively when the blocking member is slided along the passageway of the block. A number of paddle wheels are rotatably received in the block for controlling the outward flowing water. A shaft is received in the block, and a cap is threaded to the block and has a valve seat for engaging with the shaft to control the outward flowing water.

Abstract: A tubular burner has a body comprising a diffuser portion provided with openings for discharging a mixture of air and fuel fed to the body through a Venturi tube arranged inside the body. The body has a cross section shaped in such a way that a distance between an outer wall of the Venturi tube and an inner wall of the body, when measured in a radial direction of the Venturi tube, has a first value substantially constant over a first portion of a perimeter of the Venturi tube and a second value greater than the first value over a second portion of the perimeter. A chamber is defined in the second portion between the outer wall of the Venturi tube and the inner wall of the body. The mixture passes through the chamber before being discharged through the openings. The chamber is delimited at a bottom thereof by laminar flow generating means for generating a substantially laminar flow of the mixture.

Abstract: This invention is a shower filtration skin care device. Its main shell is composed of upper and lower portions that lock together to form a single piece. This locked piece is constructed so as to join the threaded tube at the bottom of an existing hand-held spray nozzle and the threaded orifice at the top of the nozzle hose, forming a suitable space within the main shell to contain the filter body or filter seat with a built-in filter body. In addition, this space may also contain a secondary shell holding a skin care product. When the above elements are so assembled, the quality of water exiting the hand-held spray nozzle will be improved. Furthermore, when the hand-held spray nozzle is used to wash one's body, one's skin will simultaneously receive the therapeutic benefits of the skin care products contacting it.

Abstract: A vehicle washer nozzle device in which a nozzle is easily installed in a body and the injection direction can be three-dimensionally adjusted. The nozzle is fitted in the body. A passage passes through the nozzle. A partition defines four injection ports in the passage. The partition includes a generally triangular guide, which increases in dimension toward the injection ports, and a horizontal partition, which intersects the triangular guide. Two inclined guide surfaces of the guide guide the flow of cleaning liquid. The location of the maximum dimension of the triangular guide is located inward of the imaginary projection of the passage.