US20060018637A1 - Nozzle of gas hot air gun - Google Patents
Nozzle of gas hot air gun Download PDFInfo
- Publication number
- US20060018637A1 US20060018637A1 US10/899,700 US89970004A US2006018637A1 US 20060018637 A1 US20060018637 A1 US 20060018637A1 US 89970004 A US89970004 A US 89970004A US 2006018637 A1 US2006018637 A1 US 2006018637A1
- Authority
- US
- United States
- Prior art keywords
- nozzle
- gas
- hot air
- air gun
- barrel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
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- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
- A45D20/00—Hair drying devices; Accessories therefor
- A45D20/04—Hot-air producers
- A45D20/06—Hot-air producers heated otherwise than electrically; ventilated by muscle power
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/12—Radiant burners
- F23D14/18—Radiant burners using catalysis for flameless combustion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/28—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid in association with a gaseous fuel source, e.g. acetylene generator, or a container for liquefied gas
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/38—Torches, e.g. for brazing or heating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/48—Nozzles
- F23D14/52—Nozzles for torches; for blow-pipes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H3/00—Air heaters
- F24H3/02—Air heaters with forced circulation
- F24H3/04—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element
- F24H3/0488—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element using fluid fuel
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- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
- A45D20/00—Hair drying devices; Accessories therefor
- A45D20/04—Hot-air producers
- A45D20/06—Hot-air producers heated otherwise than electrically; ventilated by muscle power
- A45D2020/065—Hot-air producers heated otherwise than electrically; ventilated by muscle power heated by gas or fuel
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
Definitions
- This invention relates generally to a gas hot air gun and, more specifically, to a nozzle of gas hot air gun that offers smaller physical size for users to carry around, complete burn of gas to reduce carbon mono-oxide and faster cooling down the whole set after application to prevent users from danger of burn.
- the “Internal structure of a hot air gun” of Taiwan listed pattern no. 83795 comprises of a shell body 1 , a hot air pipe pedestal 2 , an insulated ceramic pedestal 3 , an air pipe 4 and an air blower 5 ;
- the shell body 1 contains all the above components;
- an electrical heating coil 6 wraps around the hot air pipe pedestal 2 externally, the combination is inserted into the insulated ceramic pedestal 3 , the air pipe 4 is installed outmost and fixed internally onto the shell body 1 ; the electrical heating coil 6 generates high temperature air, the air blower 5 blows the hot air out through the air pipe 4 .
- the known hot air guns still have many drawbacks; since they need a power core to plug into the wall power to have the electrical hot wire 6 generate hot air, the length of the electrical hot wire 6 must be long enough to generate the temperature needed, if the electrical hot wire 6 is too long, then the shell body 1 must be large enough to accommodate, such results bulky physical size and not easy for users to carry; if the electrical hot wire 6 is too short, then the temperature is too low to apply; the electrical heating coil 6 remains hot after application, users can not pack the hot air gun up right away; users might get burn carelessly very often, the design of known hot air guns is not very safe, not very practical and needs improvement.
- a nozzle of gas hot air gun in accordance with the present invention comprises a main body, an air blower, an ignition device, a switch set and a nozzle; the main body further comprises of a barrel, a handle, a heating chamber and a mixing chamber are on the inner front of the barrel, a blower and the ignition device are inside the barrel, a gas can is inside the handle; several spray holes are installed on the nozzle; users press the switch set and have gas spray out from the spray holes of the nozzle into the mixing chamber to mix with air properly and then is sent to the heating chamber for complete burn.
- FIG. 1 is a perspective view of the present invention
- FIG. 2 is an assembly view of the present invention
- FIG. 3 is a cross-sectional view of the present invention.
- FIG. 4 is an application view of the present invention.
- FIG. 5 is a cross-sectional view of a further embodiment of the present invention.
- FIG. 6 is another cross-sectional view of a further embodiment of the present invention.
- FIG. 7 is a perspective view of another application of the present invention.
- the present invention comprises a main body 10 , an air blower 20 , an ignition device 30 , a switch set 40 and a nozzle 50 ;
- the main body 10 further consists of a barrel 11 and a handle 12 , a heating chamber 111 is inside the barrel 11 , a gas can 122 is inside the handle 12 , the nozzle 50 contains several spray holes 511 , the switch set 40 have the fluid of the gas can 122 flow into the nozzle 50 and spray out to the mixing chamber 112 through the spray holes 511 ; users can press the switch set 40 to have the fluid of the gas can 122 spray out from the nozzle 50 , the spray holes 511 of the nozzle 50 spray the fluid into the mixing chamber 112 to be mixed with air before entering the heating chamber 111 to be burnt completely in the heating chamber 111 .
- the main body 10 comprises of a barrel 11 , a handle 12 , an intake 13 and a exhalation hole 14 ; a heating chamber 111 and a mixing chamber 112 are on the inner front of the barrel 11 , a daisy shape metal slice 113 and a catalyst 114 are inside the heating chamber 111 , the metal slice 113 is installed inside the heating chamber 111 near the front side of the barrel 11 , the catalyst 114 is installed near the end of the barrel 11 ; a burning chamber 115 is inside the metal slice 113 , the mixing chamber 112 in installed on the barrel 11 that is opposite to the location of the heating chamber 111 ; a shrink 116 near the metal slice 113 is formed on one end of the mixing chamber 112 , the shrink 116 is interlinked to the burning chamber 115 of the metal slice 113 ; several air inhalation holes 117 are around the mixing chamber 112 , a passages 118 is between the metal slice 113 and the barrel 11 ; a tube shape metal net 119 to control the mixing air flow is
- the handle 12 is connected to and beneath the barrel 11 , a first container 123 and a second container 124 are inside the handle 12 , a battery set 121 and a gas can 122 are inside the first and the second container 123 , 124 respectively, the gas can 122 contains burnable fluid, usually is liquid gas; a movable cover 125 is on the bottom of the handle 12 to cover the first and the second container 123 , 124 .
- the intake 13 is installed on the end of the barrel 11 for air to flow into the barrel 11 ; several protective grids 131 are on the intake 13 to prevent users from inserting their fingers in.
- the exhalation hole 14 is on the front of the barrel 11 to expel air from the barrel 11 .
- the air blower 20 in installed internally on the end of the barrel 11 to draw air from the intake 13 into the barrel 11 , a DC motor is applied in this application, the blower 20 further comprises a motor 21 , a fan blade 22 and a temperature sensor 23 ; the motor 21 locates near one side of the exhalation hole 14 , the fan blade 22 is installed on the motor 21 and near one side of the intake 13 to be driven by the motor 21 ; the temperature sensor 23 is installed around the barrel 11 near the heating chamber 111 , the temperature sensor 23 controls the motor 20 , after end of application and when the temperature of the heating chamber 111 below certain temperature, the temperature sensor 23 stops the motor 21 from turning.
- the ignition device 30 is installed inside the metal slice 113 of the heating chamber 111 to ignite the mixed gas in the heating chamber 111 ; the ignition device 30 is installed inside the burning chamber 115 of the metal slice 113 in this application.
- the switch set 40 is installed inside the handle 12 of the main body 10 near the barrel 11 ; the switch set 40 further comprises of a power switch 41 , an ignition switch 42 and a regulation valve 53 ; the power switch 41 connects to the battery set 121 and the blower 20 with electrical wires, the power switch 41 also has a control rod 411 to open and close the gas can 122 ; the ignition switch 42 connects between the battery set 121 and the ignition device 30 with electrical wires; the regulation valve 43 is installed on the gas can 122 to control the gas flow amount of the gas can 122 .
- the nozzle 50 is installed inside the barrel 11 of the main body 10 and located between the blower 20 and the mixing chamber 112 ; the nozzle 50 is in rectangular shape with several spray holes 51 , several fluid paths 52 opposite to the spray holes 51 are on the nozzle 50 , the fluid paths 52 are connect to the spray holes 51 inside the nozzle 50 , the fluid paths also connect to the gas can 122 to have the contents of the gas can 122 spray into the mixing chamber 112 and mix with fresh air through the spray holes 51 ; the evenly distributed spray holes 51 on the nozzle 50 spray out gas simultaneously at a larger area into the mixing chamber 112 to mix the gas and air with good ratio to be burnt completely, such scheme can avoid the generation of carbon mono-oxide.
- the control rod 411 opens the gas can 122 , the gas sprays out from the spray holes 51 of the nozzle 50 , since the spray holes 51 is evenly distributed on the nozzle 50 , the gas entering the mixing chamber spreads properly; at the same time, the blower 20 blow air from the intake 13 into the mixing chamber 112 to mix the gas and the air blown in; when the mix gas passes the shrink 116 , with the shrinking diameter of the shrink 116 , the mixed gas is compressed, the mixed air spays out the shrink 116 at a faster speed, the high speed injected mixed air entering the burning chamber 115 of the metal slice 113 flows to the tube shape metal net 119 that guides the flow direction of the mixed gas (referring to FIG.
- the ignition device 30 ignites the mixed gas and generates flame, the flame expands several tongues of flames from the burning chamber 115 to surround the metal slice 113 and have the temperature of the metal slice 113 rise gradually that forms the first burning; with the better heat exchange rate of the metal slice 113 , when the air flow sent by the blower 20 passes through the passage 118 of the metal slice 113 , air flow can bring the heat on the metal slice 113 to generate hot air; when the hot air passes through the catalyst 114 , the catalyst 114 burns the small quantity left-over gas to reduce the quantity of carbon mono-oxide (CO) that forms the second burning; after two times of burning, the air temperature is higher, the air is safer, the catalyst 114 avoids the burning flame in the metal slice 113 from coming out of the nozzle 14 .
- CO carbon mono-oxide
- the mixed gas needs to have a good ratio of fresh air and gas to be properly burnt, when oxygen contained is too low in the mixed gas, the inhalation holes 117 around the burning chamber 115 offers fresh air; the diameter of the shrink 116 of the mixing chamber shrinks 112 gradually, fresh air is sucked in, mixed with gas and enters the burning chamber 115 to be burnt stably; the quantity of gas can also be controlled by the regulation valve 53 ; since the metal slice 113 inside the heating chamber 111 has very good heat conductivity, the temperature of the metal slice 113 is lifted rapidly after the ignition inside the burning chamber 115 ; if the gas in the heating chamber 111 is not burnt properly, the toxic carbon mono-oxide is generated and is harmful to human body; in order to achieve complete burning, the catalyst 114 can achieve such purpose, the catalyst 114 reacts with the burning gas and generates non-toxic carbon di-oxide, the catalyst 114 can also prevent the flame from coming out of the exhalation hole 14 .
- the motor 21 is installed near the front of the barrel 111 , the fan blade 22 is installed near the end of the barrel 11 , such arrangement makes the air blown by the blower 20 smoother, the gas from the nozzle 50 is easier to be lighted by the ignition device 30 not to be scattered by strong wind.
- the temperature sensor 23 connecting to the blower 20 is installed on the barrel 11 near the heating chamber 111 ; when power switch 41 is turned off, the nozzle 50 stops spraying, the heating chamber 111 stops burning process but still remains in high temperature condition, the temperature sensor 23 detects high temperature and have the blower 20 keep turning, the blower 20 can still turn and send fresh air to lower the heating chamber 111 temperature, the metal slice 113 has good heat conductivity to lower the heating chamber 111 temperature with cool air; when the temperature sensor 23 detects the heating chamber 111 reaches certain cool temperature, the blower 20 is stopped, the design makes the present invention easier to carry and prevent users from danger of burn.
- the nozzle 60 is in round shape with several spray holes 61 , the periphery and empty area inside of the nozzle 60 offers air flow path to mix the gas sprayed by the spray holes 61 .
- the nozzle 70 is in cross shape with several spray holes 71 , the periphery of the nozzle 70 offers air flow path to mix the gas sprayed by the spray holes 71 .
- the nozzle 50 with multiple spray holes design offers mixed gas with proper gas-air ratio for higher temperature hot air; the scheme makes the main body 10 smaller in physical size for smaller storage space and is easier for users to carry.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Nozzles (AREA)
Abstract
A nozzle of gas hot air gun comprising a main body, an air blower, an ignition device, a switch set and a nozzle; the main body further comprises of a barrel, a handle, a heating chamber and a mixing chamber are on the inner front of the barrel, a blower and the ignition device are inside the barrel, a gas can is inside the handle; several spray holes are installed on the nozzle; users press the switch set and have gas spray out from the spray holes of the nozzle into the mixing chamber to mix with air properly and then is sent to the heating chamber for complete burn.
Description
- 1. Field of the Invention
- This invention relates generally to a gas hot air gun and, more specifically, to a nozzle of gas hot air gun that offers smaller physical size for users to carry around, complete burn of gas to reduce carbon mono-oxide and faster cooling down the whole set after application to prevent users from danger of burn.
- 2. Description of the Prior Art
- Heretofore, it is known that the “Internal structure of a hot air gun” of Taiwan listed pattern no. 83795 comprises of a shell body 1, a hot air pipe pedestal 2, an insulated ceramic pedestal 3, an air pipe 4 and an air blower 5; the shell body 1 contains all the above components; an electrical heating coil 6 wraps around the hot air pipe pedestal 2 externally, the combination is inserted into the insulated ceramic pedestal 3, the air pipe 4 is installed outmost and fixed internally onto the shell body 1; the electrical heating coil 6 generates high temperature air, the air blower 5 blows the hot air out through the air pipe 4.
- In real application, the known hot air guns still have many drawbacks; since they need a power core to plug into the wall power to have the electrical hot wire 6 generate hot air, the length of the electrical hot wire 6 must be long enough to generate the temperature needed, if the electrical hot wire 6 is too long, then the shell body 1 must be large enough to accommodate, such results bulky physical size and not easy for users to carry; if the electrical hot wire 6 is too short, then the temperature is too low to apply; the electrical heating coil 6 remains hot after application, users can not pack the hot air gun up right away; users might get burn carelessly very often, the design of known hot air guns is not very safe, not very practical and needs improvement.
- It is therefore a primary object of the invention to provide a nozzle of gas hot air gun that improves the known hot air guns have to apply AC power to generate heat with an electrical heating coil, and offers smaller physical size for users to carry around, complete burn of gas to reduce carbon mono-oxide and faster cooling down the whole set after application to prevent users from danger of burn.
- In order to achieve the objective set forth, a nozzle of gas hot air gun in accordance with the present invention comprises a main body, an air blower, an ignition device, a switch set and a nozzle; the main body further comprises of a barrel, a handle, a heating chamber and a mixing chamber are on the inner front of the barrel, a blower and the ignition device are inside the barrel, a gas can is inside the handle; several spray holes are installed on the nozzle; users press the switch set and have gas spray out from the spray holes of the nozzle into the mixing chamber to mix with air properly and then is sent to the heating chamber for complete burn.
- The accomplishment of the above-mentioned object of the present invention will become apparent from the following description and its accompanying drawings which disclose illustrative an embodiment of the present invention, and are as follows:
-
FIG. 1 is a perspective view of the present invention; -
FIG. 2 is an assembly view of the present invention; -
FIG. 3 is a cross-sectional view of the present invention; -
FIG. 4 is an application view of the present invention; -
FIG. 5 is a cross-sectional view of a further embodiment of the present invention; -
FIG. 6 is another cross-sectional view of a further embodiment of the present invention; -
FIG. 7 is a perspective view of another application of the present invention. - Referring to
FIG. 1 toFIG. 3 , the present invention comprises amain body 10, anair blower 20, anignition device 30, a switch set 40 and anozzle 50; themain body 10 further consists of abarrel 11 and ahandle 12, aheating chamber 111 is inside thebarrel 11, agas can 122 is inside thehandle 12, thenozzle 50 contains several spray holes 511, the switch set 40 have the fluid of the gas can 122 flow into thenozzle 50 and spray out to themixing chamber 112 through the spray holes 511; users can press the switch set 40 to have the fluid of the gas can 122 spray out from thenozzle 50, the spray holes 511 of thenozzle 50 spray the fluid into themixing chamber 112 to be mixed with air before entering theheating chamber 111 to be burnt completely in theheating chamber 111. - The
main body 10 comprises of abarrel 11, ahandle 12, anintake 13 and aexhalation hole 14; aheating chamber 111 and amixing chamber 112 are on the inner front of thebarrel 11, a daisyshape metal slice 113 and acatalyst 114 are inside theheating chamber 111, themetal slice 113 is installed inside theheating chamber 111 near the front side of thebarrel 11, thecatalyst 114 is installed near the end of thebarrel 11; aburning chamber 115 is inside themetal slice 113, themixing chamber 112 in installed on thebarrel 11 that is opposite to the location of theheating chamber 111; ashrink 116 near themetal slice 113 is formed on one end of themixing chamber 112, theshrink 116 is interlinked to theburning chamber 115 of themetal slice 113; severalair inhalation holes 117 are around themixing chamber 112, apassages 118 is between themetal slice 113 and thebarrel 11; a tubeshape metal net 119 to control the mixing air flow is installed between theburning chamber 115 of themetal slice 113 and theshrink 116 of themixing chamber 112, athicker metal net 120 with smaller net holes near theexhalation hole 14 is on one side of themetal net 119. Thehandle 12 is connected to and beneath thebarrel 11, afirst container 123 and asecond container 124 are inside thehandle 12, abattery set 121 and a gas can 122 are inside the first and thesecond container movable cover 125 is on the bottom of thehandle 12 to cover the first and thesecond container intake 13 is installed on the end of thebarrel 11 for air to flow into thebarrel 11; severalprotective grids 131 are on theintake 13 to prevent users from inserting their fingers in. Theexhalation hole 14 is on the front of thebarrel 11 to expel air from thebarrel 11. - The
air blower 20 in installed internally on the end of thebarrel 11 to draw air from theintake 13 into thebarrel 11, a DC motor is applied in this application, theblower 20 further comprises amotor 21, afan blade 22 and atemperature sensor 23; themotor 21 locates near one side of theexhalation hole 14, thefan blade 22 is installed on themotor 21 and near one side of theintake 13 to be driven by themotor 21; thetemperature sensor 23 is installed around thebarrel 11 near theheating chamber 111, thetemperature sensor 23 controls themotor 20, after end of application and when the temperature of theheating chamber 111 below certain temperature, thetemperature sensor 23 stops themotor 21 from turning. - The
ignition device 30 is installed inside themetal slice 113 of theheating chamber 111 to ignite the mixed gas in theheating chamber 111; theignition device 30 is installed inside theburning chamber 115 of themetal slice 113 in this application. - The
switch set 40 is installed inside thehandle 12 of themain body 10 near thebarrel 11; the switch set 40 further comprises of apower switch 41, anignition switch 42 and a regulation valve 53; thepower switch 41 connects to thebattery set 121 and theblower 20 with electrical wires, thepower switch 41 also has acontrol rod 411 to open and close the gas can 122; theignition switch 42 connects between thebattery set 121 and theignition device 30 with electrical wires; theregulation valve 43 is installed on the gas can 122 to control the gas flow amount of the gas can 122. - The
nozzle 50 is installed inside thebarrel 11 of themain body 10 and located between theblower 20 and themixing chamber 112; thenozzle 50 is in rectangular shape withseveral spray holes 51,several fluid paths 52 opposite to thespray holes 51 are on thenozzle 50, thefluid paths 52 are connect to thespray holes 51 inside thenozzle 50, the fluid paths also connect to the gas can 122 to have the contents of the gas can 122 spray into themixing chamber 112 and mix with fresh air through thespray holes 51; the evenly distributedspray holes 51 on thenozzle 50 spray out gas simultaneously at a larger area into themixing chamber 112 to mix the gas and air with good ratio to be burnt completely, such scheme can avoid the generation of carbon mono-oxide. - Referring to
FIG. 4 , when thepower switch 41 is pressed on, thecontrol rod 411 opens the gas can 122, the gas sprays out from thespray holes 51 of thenozzle 50, since thespray holes 51 is evenly distributed on thenozzle 50, the gas entering the mixing chamber spreads properly; at the same time, theblower 20 blow air from theintake 13 into themixing chamber 112 to mix the gas and the air blown in; when the mix gas passes theshrink 116, with the shrinking diameter of theshrink 116, the mixed gas is compressed, the mixed air spays out theshrink 116 at a faster speed, the high speed injected mixed air entering theburning chamber 115 of themetal slice 113 flows to the tubeshape metal net 119 that guides the flow direction of the mixed gas (referring toFIG. 5 ), with the two blocks by thethicker metal net 120 on the front of the tubeshape metal net 119 and the tubeshape metal net 119 itself, since the net holes of thethicker metal net 120 is smaller, the mixed gas is blocked effectively to have most of the mixed gas spays out in all directions. When theignition switch 42 is pressed, theignition device 30 ignites the mixed gas and generates flame, the flame expands several tongues of flames from theburning chamber 115 to surround themetal slice 113 and have the temperature of themetal slice 113 rise gradually that forms the first burning; with the better heat exchange rate of themetal slice 113, when the air flow sent by theblower 20 passes through thepassage 118 of themetal slice 113, air flow can bring the heat on themetal slice 113 to generate hot air; when the hot air passes through thecatalyst 114, thecatalyst 114 burns the small quantity left-over gas to reduce the quantity of carbon mono-oxide (CO) that forms the second burning; after two times of burning, the air temperature is higher, the air is safer, thecatalyst 114 avoids the burning flame in themetal slice 113 from coming out of thenozzle 14. - The mixed gas needs to have a good ratio of fresh air and gas to be properly burnt, when oxygen contained is too low in the mixed gas, the
inhalation holes 117 around theburning chamber 115 offers fresh air; the diameter of theshrink 116 of themixing chamber shrinks 112 gradually, fresh air is sucked in, mixed with gas and enters theburning chamber 115 to be burnt stably; the quantity of gas can also be controlled by the regulation valve 53; since themetal slice 113 inside theheating chamber 111 has very good heat conductivity, the temperature of themetal slice 113 is lifted rapidly after the ignition inside theburning chamber 115; if the gas in theheating chamber 111 is not burnt properly, the toxic carbon mono-oxide is generated and is harmful to human body; in order to achieve complete burning, thecatalyst 114 can achieve such purpose, thecatalyst 114 reacts with the burning gas and generates non-toxic carbon di-oxide, thecatalyst 114 can also prevent the flame from coming out of theexhalation hole 14. - The
motor 21 is installed near the front of thebarrel 111, thefan blade 22 is installed near the end of thebarrel 11, such arrangement makes the air blown by theblower 20 smoother, the gas from thenozzle 50 is easier to be lighted by theignition device 30 not to be scattered by strong wind. Thetemperature sensor 23 connecting to theblower 20 is installed on thebarrel 11 near theheating chamber 111; whenpower switch 41 is turned off, thenozzle 50 stops spraying, theheating chamber 111 stops burning process but still remains in high temperature condition, thetemperature sensor 23 detects high temperature and have theblower 20 keep turning, theblower 20 can still turn and send fresh air to lower theheating chamber 111 temperature, themetal slice 113 has good heat conductivity to lower theheating chamber 111 temperature with cool air; when thetemperature sensor 23 detects theheating chamber 111 reaches certain cool temperature, theblower 20 is stopped, the design makes the present invention easier to carry and prevent users from danger of burn. - Referring to
FIG. 6 , another application example of the present invention, thenozzle 60 is in round shape withseveral spray holes 61, the periphery and empty area inside of thenozzle 60 offers air flow path to mix the gas sprayed by thespray holes 61. Referring toFIG. 7 , thenozzle 70 is in cross shape withseveral spray holes 71, the periphery of thenozzle 70 offers air flow path to mix the gas sprayed by thespray holes 71. Thenozzle 50 with multiple spray holes design offers mixed gas with proper gas-air ratio for higher temperature hot air; the scheme makes themain body 10 smaller in physical size for smaller storage space and is easier for users to carry. - While a preferred embodiment of the invention has been shown and described in detail, it will be readily understood and appreciated that numerous omissions, changes and additions may be made without departing from the spirit and scope of the invention.
Claims (11)
1. A nozzle of gas hot air gun comprising:
a gas can;
a nozzle with several spray holes, a fluid path is on said nozzle to connect to said spray holes inside said nozzle, one end of said fluid path connects to said gas can to have the contents of said gas can spray out through said spray holes.
2. A nozzle of gas hot air gun comprising:
a main body further comprises of a barrel, a handle, a heating chamber and a mixing chamber are on the inner front of said barrel, a battery set and a gas can are inside said handle, gas can contains burnable fluid;
an air blower in installed internally on the end of said barrel and is powered by the battery set;
an ignition device is installed inside said barrel;
a switch set is installed inside said main body;
a nozzle with several spray holes is installed inside said main body, a fluid path is also installed on said nozzle, one end of said fluid path connects to said gas can to have the contents of said gas can spray out through said spray holes, users press said switch set and have gas spray out from said spray holes of said nozzle into said mixing chamber to mix with air and then is sent to said heating chamber for complete burn.
3. The nozzle of gas hot air gun according to claim 2 , wherein said nozzle is installed inside said barrel of said main body.
4. The nozzle of gas hot air gun according to claim 3 , wherein said nozzle is installed between said blower and said mixing chamber.
5. The nozzle of gas hot air gun according to claim 4 , wherein said spray holes of said nozzle are installed toward said mixing chamber.
6. The nozzle of gas hot air gun according to claim 1 , wherein said nozzle is in round shape.
7. The nozzle of gas hot air gun according to claim 1 , wherein said nozzle is in cross shape.
8. The nozzle of gas hot air gun according to claim 1 , wherein said nozzle is in rectangular shape.
9. The nozzle of gas hot air gun according to claim 2 , wherein said nozzle is in round shape.
10. The nozzle of gas hot air gun according to claim 2 , wherein said nozzle is in cross shape.
11. The nozzle of gas hot air gun according to claim 2 , wherein said nozzle is in rectangular shape.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US10/899,700 US20060018637A1 (en) | 2004-07-26 | 2004-07-26 | Nozzle of gas hot air gun |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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US10/899,700 US20060018637A1 (en) | 2004-07-26 | 2004-07-26 | Nozzle of gas hot air gun |
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US20060018637A1 true US20060018637A1 (en) | 2006-01-26 |
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US10/899,700 Abandoned US20060018637A1 (en) | 2004-07-26 | 2004-07-26 | Nozzle of gas hot air gun |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USD799637S1 (en) * | 2015-06-10 | 2017-10-10 | Sata Gmbh & Co. Kg | Air blowing gun |
US10299558B2 (en) * | 2015-10-01 | 2019-05-28 | David & D Ltd. | Hot air blower and blowing method |
EP3594571A1 (en) * | 2018-07-12 | 2020-01-15 | Guilbert Express | Burner for a gas combustion hand tool and hand tool equipped with such a burner |
USD873957S1 (en) * | 2018-05-01 | 2020-01-28 | Rheem Manufacturing Company | Heated hose nozzle |
USD901768S1 (en) * | 2018-10-11 | 2020-11-10 | Ga.Ma S.R.L. | Hair dryer |
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US20060016091A1 (en) * | 2004-07-26 | 2006-01-26 | Arlo Lin | Gas hot air gun |
USD546501S1 (en) * | 2006-01-16 | 2007-07-10 | Matsushita Electric Works, Ltd. | Hair dryer |
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US4516332A (en) * | 1983-06-02 | 1985-05-14 | Wakayama Iron Works, Ltd. | Apparatus for clarifying and circulating hot air for heat-treating textile fabrics |
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US6959707B2 (en) * | 2001-02-09 | 2005-11-01 | Re-Tec Inc. | Gas combustion type hair drier |
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
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USD799637S1 (en) * | 2015-06-10 | 2017-10-10 | Sata Gmbh & Co. Kg | Air blowing gun |
US10299558B2 (en) * | 2015-10-01 | 2019-05-28 | David & D Ltd. | Hot air blower and blowing method |
USD873957S1 (en) * | 2018-05-01 | 2020-01-28 | Rheem Manufacturing Company | Heated hose nozzle |
EP3594571A1 (en) * | 2018-07-12 | 2020-01-15 | Guilbert Express | Burner for a gas combustion hand tool and hand tool equipped with such a burner |
FR3083847A1 (en) * | 2018-07-12 | 2020-01-17 | Guilbert Express | BURNER FOR A GAS COMBUSTION HAND TOOL AND HAND TOOL EQUIPPED WITH SUCH A BURNER |
USD901768S1 (en) * | 2018-10-11 | 2020-11-10 | Ga.Ma S.R.L. | Hair dryer |
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