52 results about "Spark arrestor" patented technology

The invention relates to a silencer being designed with sound absorptive material (13, 23) and a conduit section (1, 2) with one or more conduits (1) for leading gas flow into the silencer and with one or more outlets (2) for leading gas form the silencer. The sound absorptive material (13, 23) and the conduit section (1, 2) constitutes a protrusion extending from part of an outer shell (4) such as from an end cap (5, 6) constituting part of the shell for the silencer, or from an internal member, such as a baffle (9, 10) possibly separating at least two through-flowed chamber (12) of the silencer. Not-through-flowed cavities (17, 27) are arranged essentially adjacent to or at least partly surrounding said sound absorptive material (13, 23), thereby constituting one or more resonators acoustically communicating with said at least one through-flowed chamber. The silencer may also be designed so as to act as a spark-arrestor. Also, the invention relates to a combustion engine provided with such silencer.

The insert for an engine exhaust system has at least one conical section of flexible mesh or rovings of metallic or other high temperature resistant fiber or tape. Each section includes a rigid anchor or attachment ring having an outer diameter closely conforming to the inner diameter of the exhaust pipe, with the anchor ring being welded to the mesh or roving or tape material or the mesh or roving or tape being crimped between two concentric rings. A smaller diameter support ring may be provided at the opposite end of the conical mesh, with the support ring braced by a series of radial arms. The device may serve to reduce the sound output of the exhaust system, and/or may serve as a spark arrestor as well.

A spark arresting incinerator apparatus for burning combustible solid materials without the release of hot embers or ash capable of igniting materials outside the incinerator includes a firebox to contain the combustion, a grate disposed across the bottom of the firebox to support materials to be burned, an ash box disposed below the firebox and grate and connected to the firebox, the ash box having at least one screened and shielded combustion air inlet, a generally pyramidal cupola disposed above and connected to the firebox, and a chimney disposed above and connected to the cupola for the exit of combustion gases from the incinerator. The chimney includes a plurality of baffle plates each extending partially across the interior of the chimney, with the baffle plates disposed in staggered offset relation to each other, and also preferably includes a spark arrestor connected to the top of the chimney.

An air cleaning system (10) is disclosed comprising a fire protection system. The fire protection system comprises at least one of (i) a spark arrestor (21), (ii) a particle feeder (31), (iii) a fire detection system; and (iv) a fire extinguishing system. A preferred spark arrestor comprises a particle pre-separator (22). A preferred particle pre-separator has a core-and-vane assembly that prevents air traveling through the particle pre-separator from traveling in a straight line.

The insert for an engine exhaust system has at least one conical section of flexible mesh of metallic or other high temperature resistant fiber. Each section includes a rigid anchor or attachment ring having an outer diameter closely conforming to the inner diameter of the exhaust pipe, with the anchor ring being welded to the mesh material or the mesh being crimped between two concentric rings. A smaller diameter support ring may be provided at the opposite end of the conical mesh, with the support ring braced by a series of radial arms. A coil spring may be placed within the mesh for additional support, and/or the outer surface of the mesh may be wrapped with a glass fiber batt for additional sound control if desired. The device may serve to reduce the sound output of the exhaust system, and/or may serve as a spark arrestor as well.

Provided is a modular fire pit system adaptable for use with a plurality of removable fire pit accessories. An exemplary embodiment of the modular fire pit system includes a modular ring for engaging a rim of a combustion bowl of a fire pit. The modular ring includes an annular portion for removably engaging the rim of the combustion bowl. The annular portion includes a central aperture, interior to a perimeter of the annular portion, for defining an opening to the combustion bowl. The annular portion also includes a lip portion protruding into the central aperture and defining a surface for interchangeably supporting one of the plurality of removable fire pit accessories. The removable fire pit accessories can include a snuffer lid, a grilling surface, a spark arrestor, or a wok.

A high-frequency and high-voltage pulse generator for sterilization relates to a pulse generator. A control circuit and a pulse generating circuit are provided; the control circuit is provided with a voltage comparator, a triode, a first NAND gate, a second NAND gate, a coupler, and a relay; the pulse generating circuit is provided with a relay normally open switch, MOSFET switching tube, first transformer, second transformer, diode, capacitor, spark arrestor. Based on the traditional high-frequency pulse device, a timer based on NE555 is designed, and DSP is used to digitally process the sterilization signal, so that the interference of the sterilization circuit is greatly reduced. Capacitor charging and discharging is used to obtain high-voltage pulses, so that the output pulse can reach 12-100kV/cm, and the width is controlled at the microsecond level, and the pulse front is controlled at the nanosecond level, which can effectively sterilize and will not change the food composition. ; It can be turned on and off in an instant and has a large flow capacity and reliable operation.

A spark arrestor for processing metal workpieces includes an annular body having an upper end wall provided with a first opening and a lower end wall provided with a second opening. The annular body has a pair of generally aligned, circumferentially offset, downwardly open first recesses, each structured to be received over at least a portion of the metal workpiece. Each recess may have having a plurality of downwardly extending first shield elements. Lateral surfaces of the annular body disposed between the downwardly open first recesses have a pair of lateral second recesses which have a plurality of second shield elements extending downwardly therefrom. A torch receiving opening is provided in the annular body to facilitate insertion of the torch. The upper end wall first opening preferably has a grid structure to resist outward migration of sparks and flames from the interior of the spark arrestor.

A centrifugal spark arrestor having a main body portion with a first end and a second end spaced from one another. The main body has an interior wall defining a flow path for the flow of air through the main body and a longitudinal axis. An inlet is positioned at the first end and extends generally perpendicular to the longitudinal axis. The inlet is in operative communication with the flow path. An outlet is positioned at the second end; the outlet is in operative communication with the flow path. At least one baffle is positioned within the main body portion between the first and second ends, partially extending into the flow path. Air is pulled into the inlet and forced initially in a direction perpendicular to the longitudinal axis and against the interior wall. The air is forced through the main body portion to the outlet in a centrifugal flow path. The baffle is engaged by the air flowing through the main body portion with any particles entrained within the air impinging upon the baffle.

The present invention relates to spark traps/arrestors that are unproved relative to those that currently exist. For example, the present invention relates to a spark arrestor/trap that comprises a plurality of features that allows sparks/embers to be more effectively extinguished. The spark trap/arrestor of the present invention has at least two of vanes, conical devices and u-turns that allows for sufficient oxygen and a tortured path that is sufficiently long so as to effectively extinguish sparks and/or embers that enter the system. Alternatively, the system relates to a spark arrestor that comprises all of vanes, conical devices and u-turns that allows for sufficient oxygen and a tortured path that is sufficiently long so as to effectively extinguish sparks and/or embers that enter the system. In one embodiment, the various pans of the spark arrestor can he separated allowing for easy cleaning of the system.

The invention discloses high-temperature resistant film-coated special bag dust collection equipment, which mainly comprises a furnace body, a spark arrestor, a main fan, a back suction fan, a three-way valve, a special film-coated bag dust collector, a collecting and filtering wind valve of a pipeline system of complete facilities, a film force pressure gauge, a temperature controller, a relief valve and an ash bin wall vibrator. The equipment can reduce energy consumption and improve dust removal rate and automation.

The invention discloses a lightning protection device of pitch control system accessories. The lightning protection device is characterized by being formed by a power collector plate, a carbon fiber brush and a gasket pressing plate; a base plate of the carbon fiber brush plate is fixed in the middle of the front edge of the power collector plate through a screw in a stacked mode; the gasket pressing plate is fixed in the middle of the upper plate surface of the power collector plate through a bolt in a stacked mode. According to the lightning protection device of the pitch control system accessories, the lightning electric charge quantity can be effectively absorbed and released through a power collector claw, meanwhile the electric charge produced in the operation process of a pitch control system is released through a spark discharger, and accordingly the lightning stroke of an insulator, a lead and a fan circuit which are arranged in the pitch control system can be effectively prevented, the structure is simple, the maintenance is convenient, and the installation is easy.

A smoking pipe is constructed of a flat sheet having perforated creases enabling the sheet to be folded into a rectangular tube. The tube may be held together by adhesive or other fastening solutions. An aperture in the sidewall of the sheet contains a metal screen that can be folded into the interior of the tube to prevent loss of combustibles contained therein. At one end of the sheet, a cotton barrier forms a spark arrestor when the pipe is assembled.