US20070256647A1 - Gas water heater - Google Patents
Gas water heater Download PDFInfo
- Publication number
- US20070256647A1 US20070256647A1 US11/618,258 US61825806A US2007256647A1 US 20070256647 A1 US20070256647 A1 US 20070256647A1 US 61825806 A US61825806 A US 61825806A US 2007256647 A1 US2007256647 A1 US 2007256647A1
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- United States
- Prior art keywords
- water heater
- flange
- gas water
- disposed
- heat
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
- F24H1/40—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water tube or tubes
- F24H1/41—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water tube or tubes in serpentine form
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H8/00—Fluid heaters characterised by means for extracting latent heat from flue gases by means of condensation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
Definitions
- the invention relates to a gas water heater, and more particularly to a gas water heater for discharging condensed water and recycling thermal energy.
- FIG. 1 is a schematic view of a conventional water heater 10 .
- the water heater 10 comprises a combustion chamber 12 , a pipe assembly 14 and a heat exchanger 15 .
- Burning fuel in the combustion chamber 12 generates a high temperature gas, including carbon dioxide (CO2) and vapor.
- a high temperature gas including carbon dioxide (CO2) and vapor.
- Passing through the heat exchanger 15 cold water from an inlet 14 a of the pipe assembly 14 is heated by high temperature gas.
- Hot water is then provided from an outlet 14 b of the pipe assembly 14 .
- the heating efficiency of the water heater ranges between 72% and 83%.
- the vapor may condense into water, which adversely affects combustion, and may erode pipe assembly 14 and the heat exchanger 15 .
- a gas water heater capable of recycling waste gas and discharging condensed water, improving heat efficiency is desirable.
- the invention provides a gas water heater with heat conductors.
- Heat conductors comprise a special flange for guiding the condensed water.
- An embodiment of a gas water heater comprises a combustion chamber, a pipe assembly, a heat exchange device, and a plurality of heat conductors.
- the combustion chamber provides a gas flow.
- the heat exchange device is disposed above the combustion chamber.
- the heat conductors are disposed in parallel in the heat exchange device.
- Each heat conductor comprises a body, a plurality of through holes, and a first flange.
- the body has an oblique side facing the gas flow.
- the through holes are disposed on the body.
- the first flange is formed along the oblique side of the body for collecting condensed water.
- a gas water heater comprises a combustion chamber, a pipe assembly, a heat exchange device, and a plurality of heat conductors.
- the combustion chamber provides a gas flow.
- the heat exchange device is disposed above the combustion chamber.
- the heat conductors are disposed in parallel in the heat exchange device.
- Each heat conductor comprises a body, a plurality of through holes, and a first flange.
- the body has a V-shaped side facing the gas flow.
- the through holes are disposed on the body.
- the first flange is formed along the V-shaped side of the body for collecting condensed water.
- FIG. 1 is a schematic view of a conventional water heater
- FIG. 2 is a sectional view of a first embodiment of a gas water heater
- FIG. 3 is a schematic view of the first embodiment of a heat exchange device and heat conductors thereof
- FIG. 4 shows schematic front, top, and right side views of the first embodiment of the case and the heat exchange device
- FIGS. 5A-5C show different types of scratches of the first embodiment of the heat conductor
- FIG. 6 is a schematic view of a second embodiment of the gas water heater
- FIG. 7 is a schematic view of the second embodiment of a heat exchange device and heat conductors
- FIG. 8 shows schematic front, plan, and right side views of the second embodiment of the case and the heat exchange device
- FIGS. 9A-9C show different types of scratches of the second embodiment of the heat conductor.
- FIGS. 10A-10B shows the arrangement of a first flange of the heat conductor common to the first and second embodiments.
- FIG. 2 is a cross-sectional schematic view of a first embodiment of a gas water heater 20 comprising a combustion chamber 30 , a pipe assembly 40 , a heat exchange device 50 , a plurality of heat conductors 60 .
- the combustion chamber 30 provides a gas flow 31 .
- the pipe assembly 40 comprises an inlet 40 a and an outlet 40 b.
- the heat exchange device 50 comprises a first heat exchanger 51 , a second heat exchanger 52 , and a case 53 .
- the second heat exchanger 52 is disposed above the combustion chamber 30 and the first heat exchanger 51 is disposed between the second heat exchanger 52 and the combustion chamber 30 .
- the case 53 covers the heat conductors 60 .
- each heat conductor 60 comprises a body 61 , a plurality of through holes 62 , and a first flange 63 .
- the body 61 has an oblique side facing the gas flow 31 , and each first flange 63 is formed along the oblique side of the body 61 for collecting the condensed water. Particularly, the first flange 63 protrudes passing through the paper.
- the body 61 further comprises a surface 64 .
- the case 53 of the heat exchange device 50 further comprises a second flange 53 a, disposed at the edge of the case 53 and corresponding to the first flanges 63 of the heat conductors 60 .
- the case 53 further comprises a drain 54 , disposed at the edge of the case 53 , under the first flange 63 and the second flange 53 a, corresponding to the first flanges 63 of the heat conductors 60 and the second flange 53 a of the case 53 .
- the inlet 40 a and the outlet 40 b are connected to the through holes 62 a and 62 b respectively.
- the pipe assembly 40 between the inlet 40 a and the outlet 40 b passes through all the through holes 62 of the heat conductors 60 .
- the combustion chamber 30 provides the gas flow 31 and the cold water from the inlet 40 a is heated in the pipe assembly 40 by the gas flow 31 .
- the hot water is then discharged from the outlet 40 b.
- the thermal efficiency of the gas water heater 20 is improved because the gas flow 31 is both applied to the first heat exchanger 51 and the second heat exchanger 52 .
- the heat energy can be used twice, decreasing energy loss.
- vapor is produced by high temperature gas.
- the vapor adhering to the heat conductors 60 is condensed into water that can be collected by the first flanges 63 of the heat conductors 60 .
- the condensed water flowing along the oblique side of each body 61 (as indicated by the direction of the arrow shown in FIG. 4 ) of each first flange 63 is collected in the second flange 53 a of the case 53 .
- the condensed water is discharged via the drain 54 , protecting the pipe assembly 40 and the heat conductors 60 against erosion.
- the condensed water can be collected by the first flange 63 and the second flange 53 a formed at one side of the case 53 , reducing material consumption and cost.
- the surface 64 of each heat conductor 60 further comprises a plurality of scratches to guide the condensed water.
- the direction of the scratches 65 a is substantially vertical to that of the gas flow 31 .
- the direction of the scratches 65 b is substantially parallel to that of the gas flow 31 .
- the direction of the scratches 65 c is substantially parallel to the first flange 63 .
- each heat conductor 60 ′ comprises a body 61 ′ with a V-shaped side facing the gas flow 31 , a plurality of through holes 62 ′, and a first flange 63 ′ formed along the V-shaped side of the body 61 ′ for collecting condensed water.
- the second flange 53 ′a of case 53 ′ which is V-shaped, is disposed under the first flanges 63 ′.
- the drain 54 ′ is disposed at the center of the case 53 ′, corresponding to the second flange 53 ′a.
- the condensed water flows in the direction indicated by the arrow, and is collected by the second flange 53 ′a.
- the condensed water is discharged by the drain 54 ′, protecting the pipe assembly 40 ′ and the heat conductors 60 ′ against erosion.
- condensed water can be collected by the first flange 63 ′ and the second flange 53 ′a formed at one side of the case 53 ′, reducing material consumption and cost.
- each heat conductor 60 further comprises a plurality of scratches to guide the condensed water.
- the direction of the scratches 65 ′a is substantially vertical to that of the gas flow 31 .
- the direction of the scratches 65 ′b is substantially parallel to that of the gas flow 31 .
- the direction of the scratches 65 ′c is substantially parallel to the first flange 63 ′.
- the first flange 63 or 63 ′ can be disposed at two opposite sides of the surface 64 or 64 ′. Moreover, the fist flange 63 or 63 ′ can be disposed at only one side on surface 64 or 64 ′.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
- Details Of Fluid Heaters (AREA)
Abstract
A gas water heater is disclosed. The gas water heater comprises a combustion chamber, a pipe assembly, a heat exchange device, and a plurality of heat conductors. The combustion chamber provides a gas flow. The heat exchange device is disposed above the combustion chamber. The heat conductors are disposed in parallel in the heat exchange device. Each heat conductor comprises a body, a plurality of trough holes, and a first flange. The body has an oblique side facing the gas flow. The through holes are disposed on the body. The first flange is formed along the oblique side of the body for collecting condensed water.
Description
- The invention is a Continuation-in-Part Application of application Ser. No. 11/379,836, entitled WATER HEATER AND METHOD OF OPERATING THE SAME, filed on Apr. 24, 2006, the disclosure of which is hereby incorporated by reference in its entirety for all purposes as if fully set forth herein.
- The invention relates to a gas water heater, and more particularly to a gas water heater for discharging condensed water and recycling thermal energy.
-
FIG. 1 is a schematic view of aconventional water heater 10. Referring toFIG. 1 , thewater heater 10 comprises acombustion chamber 12, apipe assembly 14 and aheat exchanger 15. Burning fuel in thecombustion chamber 12 generates a high temperature gas, including carbon dioxide (CO2) and vapor. Passing through theheat exchanger 15, cold water from aninlet 14 a of thepipe assembly 14 is heated by high temperature gas. Hot water is then provided from anoutlet 14 b of thepipe assembly 14. The heating efficiency of the water heater ranges between 72% and 83%. Thus, a considerable amount of heat energy generated during the heating process is dissipated, generally in the form of waste gas. Moreover, the vapor may condense into water, which adversely affects combustion, and may erodepipe assembly 14 and theheat exchanger 15. - Thus, a gas water heater capable of recycling waste gas and discharging condensed water, improving heat efficiency is desirable.
- The invention provides a gas water heater with heat conductors. Heat conductors comprise a special flange for guiding the condensed water.
- An embodiment of a gas water heater comprises a combustion chamber, a pipe assembly, a heat exchange device, and a plurality of heat conductors. The combustion chamber provides a gas flow. The heat exchange device is disposed above the combustion chamber. The heat conductors are disposed in parallel in the heat exchange device. Each heat conductor comprises a body, a plurality of through holes, and a first flange. The body has an oblique side facing the gas flow. The through holes are disposed on the body. The first flange is formed along the oblique side of the body for collecting condensed water.
- Another embodiment of a gas water heater comprises a combustion chamber, a pipe assembly, a heat exchange device, and a plurality of heat conductors. The combustion chamber provides a gas flow. The heat exchange device is disposed above the combustion chamber. The heat conductors are disposed in parallel in the heat exchange device. Each heat conductor comprises a body, a plurality of through holes, and a first flange. The body has a V-shaped side facing the gas flow. The through holes are disposed on the body. The first flange is formed along the V-shaped side of the body for collecting condensed water.
- A detailed description is given in the following embodiments with reference to the accompanying drawings:
- The invention can be more fully understood by reading the subsequent detailed description and examples with references made to the accompanying drawings, wherein:
-
FIG. 1 is a schematic view of a conventional water heater; -
FIG. 2 is a sectional view of a first embodiment of a gas water heater; -
FIG. 3 is a schematic view of the first embodiment of a heat exchange device and heat conductors thereof, -
FIG. 4 shows schematic front, top, and right side views of the first embodiment of the case and the heat exchange device; -
FIGS. 5A-5C show different types of scratches of the first embodiment of the heat conductor; -
FIG. 6 is a schematic view of a second embodiment of the gas water heater; -
FIG. 7 is a schematic view of the second embodiment of a heat exchange device and heat conductors; -
FIG. 8 shows schematic front, plan, and right side views of the second embodiment of the case and the heat exchange device; -
FIGS. 9A-9C show different types of scratches of the second embodiment of the heat conductor; and -
FIGS. 10A-10B shows the arrangement of a first flange of the heat conductor common to the first and second embodiments. - The following description is of the best-contemplated mode of carrying out the invention. This description is made for the purpose of illustrating the general principles of the invention and should not be taken in a limiting sense. The scope of the invention is best determined by reference to the appended claims.
-
FIG. 2 is a cross-sectional schematic view of a first embodiment of agas water heater 20 comprising acombustion chamber 30, apipe assembly 40, aheat exchange device 50, a plurality ofheat conductors 60. Thecombustion chamber 30 provides agas flow 31. Thepipe assembly 40 comprises aninlet 40 a and anoutlet 40 b. Theheat exchange device 50 comprises afirst heat exchanger 51, asecond heat exchanger 52, and acase 53. Thesecond heat exchanger 52 is disposed above thecombustion chamber 30 and thefirst heat exchanger 51 is disposed between thesecond heat exchanger 52 and thecombustion chamber 30. Thecase 53 covers theheat conductors 60. - Referring to
FIG. 3 , theheat conductors 60 are disposed in parallel in theheat exchange device 50. As shown inFIG. 2 , eachheat conductor 60 comprises abody 61, a plurality of throughholes 62, and afirst flange 63. Thebody 61 has an oblique side facing thegas flow 31, and eachfirst flange 63 is formed along the oblique side of thebody 61 for collecting the condensed water. Particularly, thefirst flange 63 protrudes passing through the paper. As shown inFIGS. 5A-5C , thebody 61 further comprises asurface 64. - Additionally, the
case 53 of theheat exchange device 50 further comprises asecond flange 53 a, disposed at the edge of thecase 53 and corresponding to thefirst flanges 63 of theheat conductors 60. Referring again inFIG. 4 , thecase 53 further comprises adrain 54, disposed at the edge of thecase 53, under thefirst flange 63 and thesecond flange 53 a, corresponding to thefirst flanges 63 of theheat conductors 60 and thesecond flange 53 a of thecase 53. - As shown in
FIG. 3 , theinlet 40 a and theoutlet 40 b are connected to the throughholes pipe assembly 40 between theinlet 40 a and theoutlet 40 b passes through all the throughholes 62 of theheat conductors 60. When thegas water heater 20 is used, thecombustion chamber 30 provides thegas flow 31 and the cold water from theinlet 40 a is heated in thepipe assembly 40 by thegas flow 31. The hot water is then discharged from theoutlet 40 b. The thermal efficiency of thegas water heater 20 is improved because thegas flow 31 is both applied to thefirst heat exchanger 51 and thesecond heat exchanger 52. Thus, the heat energy can be used twice, decreasing energy loss. - Furthermore, during the burning process, vapor is produced by high temperature gas. The vapor adhering to the
heat conductors 60 is condensed into water that can be collected by thefirst flanges 63 of theheat conductors 60. The condensed water flowing along the oblique side of each body 61 (as indicated by the direction of the arrow shown inFIG. 4 ) of eachfirst flange 63 is collected in thesecond flange 53 a of thecase 53. The condensed water is discharged via thedrain 54, protecting thepipe assembly 40 and theheat conductors 60 against erosion. Thus, the condensed water can be collected by thefirst flange 63 and thesecond flange 53 a formed at one side of thecase 53, reducing material consumption and cost. - Furthermore, for enhancing collection of condensed water, the
surface 64 of eachheat conductor 60 further comprises a plurality of scratches to guide the condensed water. As shown inFIG. 5A , the direction of thescratches 65 a is substantially vertical to that of thegas flow 31. As shown inFIG. 5B , the direction of thescratches 65 b is substantially parallel to that of thegas flow 31. As shown inFIG. 5C , the direction of thescratches 65 c is substantially parallel to thefirst flange 63. - Referring to
FIGS. 6-9C , most of the structures in a second embodiment of agas water heater 20′, with the exception ofsecond flange 53 ′a ofcase 53′ of aheat exchange device 50′, the disposition of adrain 54′, and the shape of a plurality ofheat conductors 60′ are similar to those in the first embodiment. Due to the different type of theheat exchange device 50′ and theheat conductors 60′, the arrangement of apipe assembly 40′ is different from the first embodiment. - In the second embodiment, each
heat conductor 60′ comprises abody 61′ with a V-shaped side facing thegas flow 31, a plurality of throughholes 62′, and afirst flange 63′ formed along the V-shaped side of thebody 61′ for collecting condensed water. Thesecond flange 53 ′a ofcase 53′, which is V-shaped, is disposed under thefirst flanges 63′. Additionally, thedrain 54′ is disposed at the center of thecase 53′, corresponding to thesecond flange 53 ′a. As shown inFIG. 8 , the condensed water flows in the direction indicated by the arrow, and is collected by thesecond flange 53 ′a. Finally, the condensed water is discharged by thedrain 54′, protecting thepipe assembly 40′ and theheat conductors 60′ against erosion. - Thus, condensed water can be collected by the
first flange 63′ and thesecond flange 53 ′a formed at one side of thecase 53′, reducing material consumption and cost. - Furthermore, for enhancing collection of condensed water, each
heat conductor 60 further comprises a plurality of scratches to guide the condensed water. As shown inFIG. 9A , the direction of the scratches 65 ′a is substantially vertical to that of thegas flow 31. As shown inFIG. 9B , the direction of the scratches 65 ′b is substantially parallel to that of thegas flow 31. As shown inFIG. 9C , the direction of the scratches 65 ′c is substantially parallel to thefirst flange 63′. - Additionally, as shown in
FIGS. 10A-10B , in the first embodiment and the second embodiment, thefirst flange surface fist flange surface - While the invention has been described by way of example and in terms of the preferred embodiment, it is to be understood that the invention is not limited thereto. To the contrary, it is intended to cover various modifications and similar arrangements (as would be apparent to those skilled in the art). Therefore, the scope of the appended claims should be accorded the broadest interpretation so as to encompass all such modifications and similar arrangements.
Claims (27)
1. A gas water heater, comprising:
a combustion chamber, providing a gas flow;
a pipe assembly;
a heat exchange device disposed above the combustion chamber;
a plurality of heat conductors disposed in parallel in the heat exchange device, each heat conductor comprising:
a body having an oblique side facing the gas flow;
a plurality of through holes disposed on the body accommodating the pipe assembly therethrough; and
a first flange formed along the oblique side of the body for collecting condensed water.
2. The gas water heater as claimed in claim 1 , wherein the body comprises a surface, the through holes disposed on the surface.
3. The gas water heater as claimed in claim 2 , wherein the first flange is disposed at both sides of the surface.
4. The gas water heater as claimed in claim 2 , wherein the first flange is disposed at one side of the surface.
5. The gas water heater as claimed in claim 2 , wherein the surface comprises a plurality of scratches, guiding the condensed water.
6. The gas water heater as claimed in claim 5 , wherein the direction of the scratches is substantially vertical to that of the gas flow.
7. The gas water heater as claimed in claim 5 , wherein the direction of the scratches is substantially parallel to that of the gas flow.
8. The gas water heater as claimed in claim 5 , wherein the direction of the scratches is parallel to the first flange.
9. The gas water heater as claimed in claim 1 , wherein the heat exchange device further comprises a case, covering the heat conductors.
10. The gas water heater as claimed in claim 9 , wherein the case comprises a second flange disposed at the edge of the case, corresponding to the first flange.
11. The gas water heater as claimed in claim 9 , wherein the case comprises a drain, disposed at the edge of the case, corresponding to the first flange and the second flange.
12. The gas water heater as claimed in claim 1 , wherein the heat exchange device further comprises a first heat exchanger and a second heat exchanger, and the first heat exchanger is disposed between the second exchanger and the combustion chamber.
13. The gas water heater as claimed in claim 1 , wherein the heat conductors are heat fins.
14. A gas water heater, comprising:
a combustion chamber, providing a gas flow;
a pipe assembly;
a heat exchange device disposed above the combustion chamber;
a plurality of heat conductors disposed in parallel in the heat exchange device, each heat conductor comprising:
a body with a V-shaped side facing the gas flow;
a plurality of through holes disposed on the body accommodating the pipe assembly therethrough; and
a first flange formed along the V-shaped side of the body for collecting condensed water.
15. The gas water heater as claimed in claim 14 , wherein the body comprises a surface, the through holes disposed on the surface.
16. The gas water heater as claimed in claim 15 , wherein the first flange is disposed at both sides of the surface.
17. The gas water heater as claimed in claim 15 , wherein the first flange is disposed at one side of the surface.
18. The gas water heater as claimed in claim 15 , wherein the surface comprises a plurality of scratches, guiding the condensed water.
19. The gas water heater as claimed in claim 18 , wherein the direction of the scratches is vertical to that of the gas flow.
20. The gas water heater as claimed in claim 18 , wherein the direction of the scratches is substantially parallel to that of the gas flow.
21. The gas water heater as claimed in claim 18 , wherein the direction of the scratches is substantially parallel to the first flange.
22. The gas water heater as claimed in claim 14 , wherein the heat exchange device further comprises a case, covering the heat conductors.
23. The gas water heater as claimed in claim 22 , wherein the case comprises a second flange disposed at the center of the case, corresponding to the first flange.
24. The gas water heater as claimed in claim 14 , wherein the second flange is V-shaped.
25. The gas water heater as claimed in claim 14 , wherein the case comprises a drain disposed the center of the case, corresponding to the first flange and the second flange.
26. The gas water heater as claimed in claim 14 , wherein the heat exchange device comprises a first heat exchanger and a second heat exchanger, and the first exchanger is disposed between the second heat exchanger and the combustion chamber.
27. The gas water heater as claimed in claim 14 , wherein the heat conductors are heat fins.
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/379,836 US7434545B2 (en) | 2006-04-24 | 2006-04-24 | Water heater and method of operating the same |
AU2006203117A AU2006203117B2 (en) | 2006-04-24 | 2006-07-20 | Water heater device |
CNA200610099196XA CN101063546A (en) | 2006-04-24 | 2006-08-02 | Gas water heater |
JP2006316991A JP2007292438A (en) | 2006-04-24 | 2006-11-24 | Gas water heater |
US11/618,258 US20070256647A1 (en) | 2006-04-24 | 2006-12-29 | Gas water heater |
CN200710092111XA CN101063544B (en) | 2006-04-24 | 2007-04-02 | Gas water heater |
JP2007163903A JP2008164275A (en) | 2006-12-29 | 2007-06-21 | Gas water heater |
HK08100030.4A HK1109446A1 (en) | 2006-04-24 | 2008-01-03 | Gas water heater |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/379,836 US7434545B2 (en) | 2006-04-24 | 2006-04-24 | Water heater and method of operating the same |
US11/618,258 US20070256647A1 (en) | 2006-04-24 | 2006-12-29 | Gas water heater |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/379,836 Continuation-In-Part US7434545B2 (en) | 2006-04-24 | 2006-04-24 | Water heater and method of operating the same |
Publications (1)
Publication Number | Publication Date |
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US20070256647A1 true US20070256647A1 (en) | 2007-11-08 |
Family
ID=39709118
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/379,836 Active 2026-11-22 US7434545B2 (en) | 2006-04-24 | 2006-04-24 | Water heater and method of operating the same |
US11/618,258 Abandoned US20070256647A1 (en) | 2006-04-24 | 2006-12-29 | Gas water heater |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/379,836 Active 2026-11-22 US7434545B2 (en) | 2006-04-24 | 2006-04-24 | Water heater and method of operating the same |
Country Status (5)
Country | Link |
---|---|
US (2) | US7434545B2 (en) |
JP (2) | JP2007292438A (en) |
CN (2) | CN101063546A (en) |
AU (1) | AU2006203117B2 (en) |
HK (1) | HK1109446A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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US20110067650A1 (en) * | 2009-09-01 | 2011-03-24 | Grand Mate Co., Ltd. | Water heater module having detachable heat exchanger |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN201078725Y (en) * | 2007-04-14 | 2008-06-25 | 广东万和集团有限公司 | Forward direction combustion condensing type gas water heater |
CN103245058B (en) * | 2012-11-29 | 2014-08-06 | 湘潭锅炉有限责任公司 | Micro-positive pressure combustion combined cooling energy-saving boiler |
WO2018037857A1 (en) * | 2016-08-25 | 2018-03-01 | 株式会社ノーリツ | Heat exchanger and warm water device |
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JPS4620424Y1 (en) * | 1968-07-03 | 1971-07-15 | ||
US3902551A (en) * | 1974-03-01 | 1975-09-02 | Carrier Corp | Heat exchange assembly and fin member therefor |
US4482004A (en) * | 1977-11-09 | 1984-11-13 | Qdot Corporation | Waste heat boiler |
JPS5728237U (en) * | 1980-07-22 | 1982-02-15 | ||
JPS5751286U (en) * | 1980-09-08 | 1982-03-24 | ||
JPS5888584U (en) * | 1981-12-11 | 1983-06-15 | 株式会社ノーリツ | Heat exchanger for water heater |
JPS58192330U (en) * | 1982-06-17 | 1983-12-21 | 三洋電機株式会社 | hot water heater |
JPS6050378U (en) * | 1983-09-14 | 1985-04-09 | 松下電器産業株式会社 | heat exchanger fins |
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JPH0886584A (en) * | 1994-09-20 | 1996-04-02 | Fujitsu General Ltd | Heat exchanger with fins |
JP2002115916A (en) * | 2000-10-11 | 2002-04-19 | Denso Corp | Heat exchanger for supplying hot water |
JP2006046697A (en) * | 2004-07-30 | 2006-02-16 | Daikin Ind Ltd | Refrigerating device |
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2006
- 2006-04-24 US US11/379,836 patent/US7434545B2/en active Active
- 2006-07-20 AU AU2006203117A patent/AU2006203117B2/en active Active
- 2006-08-02 CN CNA200610099196XA patent/CN101063546A/en active Pending
- 2006-11-24 JP JP2006316991A patent/JP2007292438A/en active Pending
- 2006-12-29 US US11/618,258 patent/US20070256647A1/en not_active Abandoned
-
2007
- 2007-04-02 CN CN200710092111XA patent/CN101063544B/en active Active
- 2007-06-21 JP JP2007163903A patent/JP2008164275A/en active Pending
-
2008
- 2008-01-03 HK HK08100030.4A patent/HK1109446A1/en unknown
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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US3759050A (en) * | 1972-02-24 | 1973-09-18 | Modine Mfg Co | Method of cooling a gas and removing moisture therefrom |
US20010004009A1 (en) * | 1999-01-25 | 2001-06-21 | Mackelvie Winston | Drainwater heat recovery system |
US7353781B2 (en) * | 2002-05-23 | 2008-04-08 | Kyungdong Navien Co., Ltd | Arrangement structure of heat exchanger in condensing gas boiler |
US6907846B2 (en) * | 2002-10-02 | 2005-06-21 | Kyungdong Boiler Co., Ltd. | Condensing gas boiler having structure of preventing corrosion caused by using heterogeneous metal |
US6945197B2 (en) * | 2003-12-29 | 2005-09-20 | Grand Hall Enterprise Co., Ltd. | Water heater |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110067650A1 (en) * | 2009-09-01 | 2011-03-24 | Grand Mate Co., Ltd. | Water heater module having detachable heat exchanger |
Also Published As
Publication number | Publication date |
---|---|
US20070245981A1 (en) | 2007-10-25 |
CN101063544B (en) | 2010-05-26 |
AU2006203117A1 (en) | 2007-11-08 |
JP2007292438A (en) | 2007-11-08 |
HK1109446A1 (en) | 2008-06-06 |
AU2006203117B2 (en) | 2008-09-18 |
CN101063546A (en) | 2007-10-31 |
CN101063544A (en) | 2007-10-31 |
JP2008164275A (en) | 2008-07-17 |
US7434545B2 (en) | 2008-10-14 |
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Legal Events
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Owner name: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE, TAIWAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:LO, WEN-BIN;WU, KUO-KUANG;JENG, JING-LYANG;REEL/FRAME:018784/0298 Effective date: 20061201 |
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STCB | Information on status: application discontinuation |
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