131 results about "Plug nozzle" patented technology

A spray nozzle is used in a process of quenching a hot glass sheet during a laser scoring process or other high energy glass heating process. The scoring is conducted by a high energy means such as a laser. The nozzle is located in proximity to the glass sheet, creating gas in liquid used to quench the glass located in the nozzle (e.g., water). The gas (e.g., air bubbles) is removed from the quenching liquid. Then, the spray nozzle is used to spray the quenching liquid onto the sheet at a location trailing laser scoring of the sheet, such as using a traveling anvil machine at the bottom of the draw. The spray nozzle (purge nozzle) has a purge opening and tubing leading to a discharge location. The purge nozzle can have a sloped passageway that pre-stages gas bubbles near the purge opening in the nozzle. The spray nozzle can include a cooling coil passing around the nozzle passageway that enables a coolant to travel along the coil. This cools the quenching liquid passing through the nozzle, and increases the solubility of bubbles in the quenching liquid in the nozzle. A gas filter can receive gas-rich quenching liquid from the pressurized quenching liquid source, remove gas from the liquid, and send gas-depleted quenching liquid to the spray nozzle.

A center plug is configured for variable area use in an exhaust nozzle. A forward portion of the plug includes an inlet having a closing flap therein, and an aft portion of the plug includes an outlet. The flap is selectively open during aircraft takeoff operation and up to a preset climb altitude for bypassing a portion of core exhaust flow through the plug, with the flap being closed from preset altitude and cruise operation. Opening the flap correspondingly increases the available flow area for discharging the exhaust flow for reducing velocity thereof, and attenuating noise.

A plugged nozzle monitoring system uses a thermal flow sensor located within a spray nozzle of an agricultural sprayer. The thermal flow sensor is free of moving parts and is made of corrosion-resistant materials. The thermal flow sensor is placed within the fluid flow path through the nozzle and activates an alarm if flow through the nozzle falls below the baseline value.

The thrust of a rocket motor can be varied while maintaining efficiency over a range of pressure ratios using a design that allows for changing the relative position of a plug and a combustion chamber exit. The plug or the chamber exit may be attached to an adaptive control system for position modification. The plug may be positioned in a plug nozzle configuration or in an expansion-deflection (ED) configuration. In either configuration, the elongated downstream portion of the plug allows for efficiency over a wide range of pressure ratios, while ability to change plug position with respect to the chamber exit allows adjustment of rocket thrust.

A thrust vector control system for a plug nozzle rocket engine for propelling and maneuvering a vehicle is disclosed. The plug nozzle rocket engine includes a housing having a nozzle throat, a plug disposed within the housing and positioned within the nozzle throat to define a space between the plug and the nozzle throat, and a thrust diverter moveably disposed relative to the housing to define an asymmetric pressure distribution along the plug for thrust-vectoring. In one embodiment, the thrust diverter is normally biased to a non-thrust-vectoring position, but is moveable in a plane substantially perpendicular to an axis extending longitudinally through the plug.

The invention discloses a glue gun which comprises a glue nozzle, wherein a glue feeding hole is formed in the glue nozzle; a scraper blade is arranged at the head of the glue nozzle; a glue body accommodating cavity is formed in the lower end of the scraper blade; two sides of the glue body accommodating cavity extend towards the head of a nozzle body to form cambered flanges; a through hole is formed in the scraper blade; the lower end of the through hole is communicated with the glue body accommodating cavity; the upper end of the through hole is communicated with the end face of the upper end of the scraper blade; the through hole in the upper end of the scraper blade is connected with a hollow hose; the other end of the hollow hose is connected with a glue body collection device. When the glue gun is used for dispensing glue, redundant glue bodies in a slit can be scraped to another slit with a small amount of glue bodies under the action of the scraper blade, and the residual glue bodies are sucked into the glue body collection device. Therefore, the glue gun has the beneficial effects that the glue dispension is uniform, the redundant glue bodies can be recycled, the waste of glue bodies is effectively reduced, and the cost is reduced.

A filler tube assembly is used with a fuel pump nozzle having a pressure sensing port. The filler tube assembly includes a receiver having an inner wall defining an aperture, which receives the pump nozzle. The inner wall defines an orifice and a seal is coupled to the inner wall about the orifice for defining a chamber between the inner wall, the seal, and the fuel pump nozzle when the fuel pump nozzle is disposed in the aperture. A vacuum tube has a coupled end in fluid communication with the orifice and an open end in fluid communication with the fuel tank. The receiver defines a rim for seating the fuel pump nozzle in the aperture to align the pressure sensing port with the orifice. When fuel covers the open end of the vacuum tube, a pressure change is transmitted through the filler tube assembly to the pressure sensing port.

The invention provides a thin-wall whirl central body structure which consists of a thin-wall annular structure and a thin-wall whirl blade-shaped structure and is characterized in that the thin-wall annular structure is positioned at the outside, connected with a cylinder of an axially symmetrical nozzle by virtue of a support member and used for fixing the thin-wall whirl blade-shaped structure and meanwhile changing the flow direction of airflow flowing through the thin-wall whirl blade-shaped structure into a direction along the axial direction of the nozzle; the thin-wall whirl blade-shaped structure is positioned at a front middle section inside the thin-wall annular structure, arranged along the circumferential direction of the thin-wall annular structure and fixedly connected with the thin-wall annular structure; the sections of the front and rear ends of the thin-wall whirl blade-shaped structure form a certain angle in the circumferential direction, so that the thin-wall whirl blade-shaped structure can shield a hot end member at the front end of the engine, and a hiding function is achieved. The thin-wall whirl central body structure has the following advantages that the regulation range of the throat area of a traditional axially-symmetrical plug nozzle is not influenced; the thin-wall whirl central body structure can be applied to other types of traditional axially-symmetrical nozzles, so that a favorable hiding function is achieved, the structure is simple, and hidden sawtooth shaping can be performed conveniently.

A discharge head features a motor mounting plate configured for mounting on a motor; a base plate configured for mounting on a pump assembly; an elbow transition mounted on the base plate configured for providing discharge from the pump assembly; a seal housing pipe coupled to the elbow transition configured for receiving a mechanical seal or packing arrangement; supporting pipes arranged between the motor mounting plate and the base plate; and ribs arranged between the supporting pipes and the seal housing pipe configured to prevent substantially lateral and torsional movement, including movement due to reacting hydraulic forces at a pump nozzle and inertia from a driver. The discharge head according to the present invention makes it quicker and easier to couple together the shaft of a pump and the shaft of a motor in such VTSH pumps when compared to the techniques known in the art.

In a gas purge apparatus, a load port apparatus, an installation stand for a purging container, and a gas purge method, the inside of the purging container is filled with a cleaning gas until just before transportation, and a placement failure does not happen to the next purging container to be placed. A purge nozzle is moved to a direction separating from a purge port after detecting a movement of a table on which the purging container is installed to an undock position and a stop of a feeding of the cleaning gas.

The invention discloses a binary plug nozzle and an aircraft with the binary plug nozzle. The binary plug nozzle comprises a first side wall panel, a second side wall panel, a first cone body, a second cone body, a first cam and a second cam, wherein the first side wall panel and the second side wall panel are in a hollow structure and used for arranging a cooling pipeline; the first cone body and the second cone body are in the hollow structure; the first cam and the second cam is in the hollow structure; the cooling pipeline is respectively arranged in the first side wall panel and the second side wall panel, one end of each pipeline is connected with a cooling air source, and the other end respectively extends into the hollow parts of the first cone body, the second cone body, the first cam and the second cam and used for accessing cooling gas into the first cone body, the second cone body, the first cam and the second cam. According to the binary plug nozzle, the cooling pipeline is respectively arranged in the first side wall panel and the second side wall panel and used for accessing the cooling gas to reduce temperature of all parts. The binary plug nozzle is simple in structure, low in cost and good in cooling effect.

The invention discloses an automatic cleaning device of a spray nozzle. The automatic cleaning device is characterized in that a cleaning ring and solvent supply devices are additionally arranged on the outside of the spray nozzle of a spray gun, electromagnetic valves are arranged among the solvent supply devices and the cleaning ring, the solvent supply devices are connected with the cleaning ring by pipelines, and the electromagnetic valves are used for stopping solvent supply; solvent inlets are formed in the cleaning ring, an inner conical ring is arranged at the lower end of the inner wall of the cleaning ring, internal threads are arranged at the upper end of the inner wall of the cleaning ring, an outer cone is arranged at the lower end of the spray nozzle, a boss is arranged at the upper end of the spray nozzle, the cleaning ring compresses the boss of the spray nozzle to fix the boss of the spray nozzle, and the spray nozzle is fixed onto a glue nozzle by the aid of the cleaning ring; an outlet channel is communicated with a glue cavity, threads are arranged on an outer circle of the glue nozzle, the cleaning ring is connected with the glue nozzle in a threaded manner, and the glue nozzle is fixed to a shell by the aid of the threads. The automatic cleaning device has the advantages that when flowing into the annular channel from the solvent inlets, solvents are sprayed out of the annular channel under the effect of pressure, and sprayed solvents are aligned with the outer surface of a sphere at the lower end of the spray nozzle and clean the outer surface of the sphere, so that the purpose of automatically cleaning the spray nozzle can be achieved; the automatic cleaning device is applicable to automatically cleaning spray nozzles in spray guns in the paint spraying, glue spraying and glue coating industries and the like.