公开(公告)号：US5497760A

公开(公告)日：1996-03-12

申请号：US324193

申请日：1994-10-17

申请人： Lorne B. Alden ,  J. Timothy Cole ,  James A. Kleva ,  Erin D. Lonergan

发明人： Lorne B. Alden ,  J. Timothy Cole ,  James A. Kleva ,  Erin D. Lonergan

IPC分类号： F24C15/32

CPC分类号： F24C15/322

摘要： An efficient convection oven is described. The oven utilizes a single inlet centrifugal induced back draft fan disposed in a sidewall thereof between vertical burners and combustion chambers to constantly mix products of combustion from the combustion chambers with air from within the oven cavity and recirculate the same. The fan design of the instant invention permits air changes within the oven cavity in the range of 85 to 100 per minute and the vertical burner fan combustion chamber combination permits a dramatic increase in the rack space within the oven cavity for a given oven exterior envelope.

摘要翻译： 描述了一种有效的对流烘箱。 烘箱利用设置在垂直燃烧器和燃烧室之间的侧壁中的单个入口离心诱导的后通风机，以将来自燃烧室的燃烧产物与来自炉腔内的空气持续混合并使其再循环。 本发明的风扇设计允许炉腔内的空气变化在每分钟85至100的范围内，并且垂直燃烧器风扇燃烧室组合允许对于给定的烘箱外部封套在烤箱腔内的架空间的显着增加。

公开(公告)号：US5845631A

公开(公告)日：1998-12-08

申请号：US915916

申请日：1997-08-21

申请人： James A. Kleva ,  Andrzej Sliwowski

发明人： James A. Kleva ,  Andrzej Sliwowski

IPC分类号： A21B1/26 ,  A47J37/00 ,  A21B1/08 ,  F24C3/00 ,  F24C15/32

CPC分类号： A21B1/26

摘要： An oven (1) for baking foods having a baking cabinet (2), at least one door (3), a plurality of burners (4), a plurality of annular heat exchange tubes (6) for receiving in an annulus (7) at an intake end (8) combustion gases (5) from the burners (4), a flue (9) for conducting the combustion gases (5) out of the oven (1), and a blower device (11) for recirculating air from within the baking cabinet (2), over the heat exchange tubes (6) and back into the baking cabinet (2). In the improvement, a first bracket (20) is removably attached to the oven (1), a second bracket (21) is attached to the oven (1) and spaced a distance from the first bracket (20). A plurality of annular heat exchange tubes (6) are disposed between the brackets (20, 21) with the intake end (8) of each tube attached to the second bracket (21) and the discharge end (10) of each heat exchange tube (6) attached to the first bracket (20) so as to form a removable rack (25) of the heat exchange tubes (6). Each heat exchange tube forms a curved configuration such that the length of the curved configuration of each heat exchange tube is greater than a distance (X) between the brackets so that each heat exchange tube is independently free to expand and contract with heating and cooling of the heat exchange tubes without significant force being placed on the brackets.

摘要翻译： 一种用于烘烤具有烤箱（2），至少一个门（3），多个燃烧器（4）的食品的烘箱（1），用于容纳在环形空间（7）中的多个环形换热管（6） 在来自燃烧器（4）的进气端（8）燃烧气体（5），用于将燃烧气体（5）导出烘箱（1）的烟道（9）和用于再循环空气的送风装置（11） 从烘烤柜（2）内部通过热交换管（6）并返回烘烤柜（2）。 在改进中，第一支架（20）可移除地附接到烤箱（1），第二支架（21）附接到烤箱（1）并且与第一支架（20）间隔一定距离。 多个环形热交换管（6）设置在支架（20,21）之间，每个管的进气端（8）附接到第二支架（21）和每个换热管的排出端（10） （6），其连接到所述第一支架（20），以形成所述热交换管（6）的可移除的支架（25）。 每个热交换管形成弯曲构造，使得每个热交换管的弯曲构造的长度大于支架之间的距离（X），使得每个热交换管独立地随着加热和冷却而自由地膨胀和收缩 没有显着力的热交换管被放置在支架上。