JPH027419U - - Google Patents
Info
- Publication number
- JPH027419U JPH027419U JP8429088U JP8429088U JPH027419U JP H027419 U JPH027419 U JP H027419U JP 8429088 U JP8429088 U JP 8429088U JP 8429088 U JP8429088 U JP 8429088U JP H027419 U JPH027419 U JP H027419U
- Authority
- JP
- Japan
- Prior art keywords
- diameter
- fuel gas
- pilot burner
- throttle part
- gas nozzle
- 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.)
- Pending
Links
- 239000002737 fuel gas Substances 0.000 claims description 9
- 239000007789 gas Substances 0.000 claims description 6
- 238000002485 combustion reaction Methods 0.000 claims description 2
- 239000003570 air Substances 0.000 claims 1
- 239000012080 ambient air Substances 0.000 claims 1
- 238000002347 injection Methods 0.000 claims 1
- 239000007924 injection Substances 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Pre-Mixing And Non-Premixing Gas Burner (AREA)
Description
第１図ないし第４図は本考案の実施例を示し、
第１図は一部を破断した拡大図、第２図はパイロ
ツトバーナ装備部分の拡大正面図、第３図は同拡
大平面図、第４図は瞬間湯沸器の概略構成図であ
る。第５図は従来構造を示す一部破断図である。
１５……炎孔、１６……筒体、１７……ガスノ
ズル、１８……燃焼用空気吸入口、２０……燃料
ガス噴出路、２１……縮径絞り部、２２……燃料
ガス噴出口、２３……拡径段部。
1 to 4 show embodiments of the present invention,
FIG. 1 is an enlarged partially cutaway view, FIG. 2 is an enlarged front view of the pilot burner equipment part, FIG. 3 is an enlarged plan view of the same, and FIG. 4 is a schematic configuration diagram of the instantaneous water heater. FIG. 5 is a partially cutaway view showing a conventional structure. 15... Flame hole, 16... Cylindrical body, 17... Gas nozzle, 18... Combustion air intake port, 20... Fuel gas jetting path, 21... Diameter reducing part, 22... Fuel gas jetting port, 23... Expanded diameter stepped portion.
Claims (1)
側に、その筒体１６の内部へ燃料ガスを噴出する
ガスノズル１７を設け、前記筒体１６の周壁、又
は、ガスノズル付設側端部に、前記ガスノズル１
７からの燃料ガス噴出に伴い周囲空気Ａを前記筒
体１６の内部へ吸入する燃焼用空気吸入口１８を
形成したパイロツトバーナであつて、前記ガスノ
ズル１７において、その燃料ガス噴出路２０に縮
径絞り部２１を形成すると共に、その縮径絞り部
２１と燃料ガス噴出口２２との間に、前記燃料ガ
ス噴出口２２を前記縮径絞り部２１よりも大径と
する噴出速度変化抑制用の拡径段部２３を形成し
たパイロツトバーナ。 ２ 前記燃料ガス噴出口２２の径Ｄを、前記縮径
絞り部２１の径ｄの３．５倍から４．５倍の範囲
の径とした請求項１記載のパイロツトバーナ。 ３ 前記縮径絞り部２１の出口と前記燃料ガス噴
出口２２との間の距離ｌを、前記縮径絞り部２１
の径ｄの１２．５倍から１７．０倍の範囲の距離
とした請求項１又は２記載のパイロツトバーナ。[Claims for Utility Model Registration] 1. A gas nozzle 17 for spouting fuel gas into the interior of the cylinder 16 is provided at the other end of a cylinder 16 having a flame hole 15 formed at one end, and the peripheral wall of the cylinder 16 is , or the gas nozzle 1 is attached to the gas nozzle attached side end.
A pilot burner is provided with a combustion air inlet 18 for sucking ambient air A into the cylinder body 16 as fuel gas is ejected from the gas nozzle 17, and the fuel gas ejection passage 20 of the gas nozzle 17 has a reduced diameter. A throttle part 21 is formed between the diameter-reducing throttle part 21 and the fuel gas jet port 22, and the fuel gas jet port 22 is made larger in diameter than the diameter-reducing throttle part 21 for suppressing changes in jetting speed. A pilot burner in which an enlarged diameter stepped portion 23 is formed. 2. The pilot burner according to claim 1, wherein the diameter D of the fuel gas injection port 22 is within a range of 3.5 to 4.5 times the diameter d of the diameter reducing constriction portion 21. 3. The distance l between the outlet of the diameter-reducing throttle part 21 and the fuel gas jet port 22 is determined by the distance l between the outlet of the diameter-reducing throttle part 21
3. The pilot burner according to claim 1, wherein the distance is between 12.5 and 17.0 times the diameter d of the pilot burner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8429088U JPH027419U (en) | 1988-06-24 | 1988-06-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8429088U JPH027419U (en) | 1988-06-24 | 1988-06-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH027419U true JPH027419U (en) | 1990-01-18 |
Family
ID=31308986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8429088U Pending JPH027419U (en) | 1988-06-24 | 1988-06-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH027419U (en) |
-
1988
- 1988-06-24 JP JP8429088U patent/JPH027419U/ja active Pending