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US 10,295,222 B2Granted
Hot water apparatus
AssigneeNoritz Corporation
InventorWataru Ooshita
Life of this patent
Estimating the term…
Abstract
A hot water apparatus includes a burner, a latent heat recovery heat exchanger, a housing, a fixing member, an attachment member, and a straightening vane. The fixing member is configured to fix the latent heat recovery heat exchanger to the housing. The attachment member is configured to attach the fixing member to a case. The straightening vane is arranged in the case. The attachment member protrudes into the case. The straightening vane includes a top plate portion arranged upstream from the attachment member in a direction of flow of the heating gas in the case.
Claims12
A hot water apparatus comprising:
- a burner for generating a heating gas;
- a heat exchanger including a heat exchange portion for exchanging heat between the heating gas which flows outside and water and/or hot water which flows inside and a case which accommodates the heat exchange portion;
- a housing which accommodates the burner and the heat exchanger;
- a fixing member arranged in the housing for fixing the heat exchanger to the housing;
- an attachment member arranged in the housing for attaching the fixing member to the case;
- and
- a straightening vane arranged in the case,
- the attachment member protruding into the case, and
- the straightening vane including a top plate portion arranged upstream from the attachment member in a direction of flow of the heating gas in the case.
6 more elements
A hot water apparatus comprising:
- a burner for generating a heating gas;
- a heat exchanger including a heat exchange portion for exchanging heat between the heating gas which flows outside and water and/or hot water which flows inside and a case which accommodates the heat exchange portion;
- a housing which accommodates the burner and the heat exchanger;
- a fixing member arranged in the housing for fixing the heat exchanger to the housing;
- an attachment member arranged in the housing for attaching the fixing member to the case;
- and
- a straightening vane arranged in the case, wherein
- the attachment member protrudes into the case,
- the straightening vane includes a top plate portion arranged upstream from the attachment member in a direction of flow of the heating gas in the case,
- the fixing member includes a flat plate portion and a projection portion which projects from the flat plate portion toward the case of the heat exchanger, and
- the attachment member is attached to the projection portion and an attachment portion of the case while the projection portion is fitted to the attachment portion.
8 more elements
A hot water apparatus comprising:
- a burner for generating a heating gas;
- a heat exchanger including a heat exchange portion for exchanging heat between the heating gas which flows outside and water and/or hot water which flows inside and a case which accommodates the heat exchange portion;
- a housing which accommodates the burner and the heat exchanger;
- a fixing member arranged in the housing for fixing the heat exchanger to the housing;
- an attachment member arranged in the housing for attaching the fixing member to the case;
- and
- a straightening vane arranged in the case, wherein
- the attachment member protrudes into the case,
- the straightening vane includes a top plate portion arranged upstream from the attachment member in a direction of flow of the heating gas in the case,
- the heat exchanger includes a flange member arranged in an upper end portion of the case,
- the flange member includes an extension portion which extends from the upper end portion of the case to outside of the case, an opening surrounded by the extension portion, and a rising coupling portion which rises upward from the extension portion so as to surround the opening,
- a first cut portion provided in an upper edge of the rising coupling portion is arranged to be superimposed on a second cut portion provided in an upper edge of the upper end portion of the case while the upper end portion of the case is inserted in the opening, and
- the top plate portion is arranged below the first cut portion and the second cut portion.
10 more elements
Dependencies are inferred from the claim text.