JPH01144639U

JPH01144639U -

Info

Publication number: JPH01144639U
Application number: JP3773888U
Authority: JP
Priority date: 1988-03-23
Filing date: 1988-03-23
Publication date: 1989-10-04

Description

[Brief explanation of the drawing]

第１図と第２図はそれぞれ本考案の一実施例と
しての給排気筒トツプを示す断面図と斜視図、第
３図は本考案の適用例としての冷暖房機の構成を
示す断面図、第４図は第３図のＡ−Ａ線における
壁貫通スリーブとインナースリーブとの関係を示
す拡大断面図、第５図は従来の給排気筒トツプを
示す断面図である。図において、１は燃焼装置、
２は排気通路、３は内管、４は給気通路、５は外
管、７は給気ガイド、９は排気チヤンバ構造体、
１０はキヤツプ、１１は水切リング、１２は給気
口である。なお、図中同一符号は、同一又は相当
部分を示す。 1 and 2 are a cross-sectional view and a perspective view, respectively, showing the top of an air supply and exhaust pipe as an embodiment of the present invention, and FIG. FIG. 4 is an enlarged sectional view taken along line A--A in FIG. 3, showing the relationship between the wall penetrating sleeve and the inner sleeve, and FIG. 5 is a sectional view showing the top of a conventional air supply and exhaust pipe. In the figure, 1 is a combustion device;
2 is an exhaust passage, 3 is an inner pipe, 4 is an air supply passage, 5 is an outer pipe, 7 is an air supply guide, 9 is an exhaust chamber structure,
10 is a cap, 11 is a drain ring, and 12 is an air supply port. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims

[Scope of utility model registration request]

An inner tube with an open end that forms an exhaust passage for exhausting combustion exhaust gas from the combustion device to the outside, and a supply tube that encloses this inner tube and takes in combustion air from outside to the combustion device around the outside of the inner tube. The jacket tubular body is composed of an outer tube with an open tip that forms an air passage, and the outer tube has an air supply guide that expands in a radial direction at the tip, and the inner tube has an air supply guide that expands in a radial shape. An air supply/exhaust pipe top characterized in that an exhaust side structure is configured such that it faces the air supply guide with a gap therebetween and forms an air supply port outside the outer diameter of the outer tube together with the air supply guide.