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1. 发明授权

US3563473A Gas burner unit 失效
标题翻译：气体燃烧器单元
公开(公告)号：US3563473A
公开(公告)日：1971-02-16
申请号：US3563473D
申请日：1968-10-14
申请人： EUROP RISCALDAMENTO FER
发明人： FERROLI TREDICESIMO LUCIANO
IPC分类号： F23D14/10 , B05B1/14
CPC分类号： F23D14/10
摘要： A gas burner unit for providing a discharge of a combustible gas to mix with the surrounding air so as to support a flame. The gas burner unit has gas-receiving and gas-discharging chambers which are defined, in part, between a pair of opposed longitudinally extending sidewalls which define between themselves a narrow longitudinally extending slit through which the gas-receiving and gas-discharging chambers communicate with each other. At the gasdischarging chamber these walls are of an undulatory, wavy configuration and are ''''in phase'''' so that the alternating ridges and depressions of one wall are respectively in alignment with the alternating depressions and ridges of the other wall. These walls terminate distant from the slit in elongated wavy edges between which a front wall of the burner unit extends, with this front wall being also of a wavy configuration and being formed with discharge openings through which gas discharges. These openings are respectively situated adjacent the ridges of the walls so as to form two rows of openings with the openings of one row laterally offset from and longitudinally staggered with respect to the openings of the other row.

2. 发明授权

US3589343A Boiler having tapered duct elements 失效
标题翻译：锅炉具有切割的导管元件
公开(公告)号：US3589343A
公开(公告)日：1971-06-29
申请号：US3589343D
申请日：1969-01-17
申请人： EUROP RISCALDAMENTO FER
发明人： LUCIANO FERROLI TREDICESIMO
IPC分类号： F24H1/32 , F24H1/38 , F22B23/00
CPC分类号： F24H1/38 , F24H1/32
摘要： A boiler wherein the hot combustion gases flow upwardly through ducts to transfer their heat to a fluid such as a liquid which engages the duct walls at the sides of the latter opposition from the duct interiors. The boiler is composed of a number of sections which butt against each other. The face of one section which butts against the face of an adjoining section is formed with a series of vertically extending half channels, and the channels of the butting faces of adjoining sections register to form gas ducts up which the hot combustion gases flow. Each of the butting faces of each section is formed with a series of these half channels located one next to the other so that the butting faces of the pair of adjoining sections form a plurality of upwardly directed ducts for the gases. The ducts taper in an upward direction so as to have at their upper ends outlets which are of smaller cross-sectional area than their bottom inlet ends. Also, inclined fins distributed along the interior of the half channels of one section coact with oppositely inclined fins distributed along the interior of the half channels of the butting section to form helicoidal fins in the interior of the gas ducts, and these fins are located closer to each other in the region of the upper outlet end of the gas ducts than in the region of the lower inlets thereof.

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