-
公开(公告)号：USD960336S1
公开(公告)日：2022-08-09
申请号：US29829631
申请日：2022-03-07
-
公开(公告)号：US20190186847A1
公开(公告)日：2019-06-20
申请号：US15849416
申请日：2017-12-20
摘要： A heat exchange tube for an HVAC system can include at least one reduced diameter section with an integral flattened ridge. The flow of combustion gases through the heat exchanger tubes may be partially constricted inside the reduced diameter sections. When installed in an HVAC system the integral flattened ridges may be angled to intercept the flow of air outside the heat exchanger tubes.
-
公开(公告)号：USD945579S1
公开(公告)日：2022-03-08
申请号：US29630395
申请日：2017-12-20
-
公开(公告)号：US10415892B2
公开(公告)日：2019-09-17
申请号：US15849416
申请日：2017-12-20
摘要： A heat exchange tube for an HVAC system can include at least one reduced diameter section with an integral flattened ridge. The flow of combustion gases through the heat exchanger tubes may be partially constricted inside the reduced diameter sections. When installed in an HVAC system the integral flattened ridges may be angled to intercept the flow of air outside the heat exchanger tubes.
-
-
-
搜索结果
4 条记录 (耗时 0.009 秒)
筛选
AND
AND
过滤
NOT
NOT
