CN-2012 1 0300273 (2012-08-22); CN-2012 2 0418089 U (2012-08-22); CN-2012 1 0337908 (2012-09-13); CN-2012 2 0465982 U (2012-09-13)
발명자
/ 주소
Deng, David
출원인 / 주소
Deng, David
대리인 / 주소
Knobbe Martens Olson & Bear LLP
인용정보
피인용 횟수 :
6인용 특허 :
27
초록▼
A heater assembly can be used with a gas appliance. The gas appliance can be a dual fuel appliance for use with one of a first fuel type or a second fuel type different than the first. The heater assembly can include at least one pressure regulator, a housing, and an actuation member. The housing ha
A heater assembly can be used with a gas appliance. The gas appliance can be a dual fuel appliance for use with one of a first fuel type or a second fuel type different than the first. The heater assembly can include at least one pressure regulator, a housing, and an actuation member. The housing has a first fuel hook-up for connecting the first fuel type to the heater assembly, and a second fuel hook-up for connecting the second fuel type to the heater assembly. The actuation member can control a flow through the heater assembly based on whether the first or the second fuel hook-up is used.
대표청구항▼
1. A heater assembly for use with one of a first fuel type or a second fuel type different than the first, the heater assembly comprising: a first pressure regulator configured to regulate a fuel flow of a first fuel type within a first predetermined range a second pressure regulator configured to r
1. A heater assembly for use with one of a first fuel type or a second fuel type different than the first, the heater assembly comprising: a first pressure regulator configured to regulate a fuel flow of a first fuel type within a first predetermined range a second pressure regulator configured to regulate a fuel flow of a second fuel type within a second predetermined range different from the first;a housing comprising: a first fuel hook-up for connecting the first fuel type to the heater assembly, the first fuel hook-up configured to direct fuel flow to the first pressure regulator;a second hook-up for connecting the second fuel type to the heater assembly, the second fuel hook-up configured to direct fuel flow to the second pressure regulator;a first outlet downstream of and in fluid communication with both the first and second pressure regulators, wherein the first pressure regulator is positioned within a flow path between the first fuel hook-up and the first outlet and the second pressure regulator is positioned within a flow path between the second fuel hook-up and the first outlet;a first inlet;a second outlet; anda third outlet;a first actuation member having an end located within the first fuel hook-up and having a first actuation member first position and a second position, the actuation member configured such that connecting a fuel source to the heater assembly at the first fuel hook-up moves the actuation member from the first actuation member first position to the second position, the first actuation member comprising a first valve member, wherein in the first actuation member first position, fuel flow through the first fuel hook-up and the second outlet is prevented and in the first actuation member second position, fuel flow through the first fuel hook-up and the second outlet is permitted;a second actuation member having an end located within the second fuel hook-up and having a first position and a second position, the actuation member configured such that connecting a fuel source to the heater assembly at the second fuel hook-up moves the actuation member from the first position to the second position, the second actuation member comprising a second valve member, wherein in the second actuation member first position, fuel flow through the second fuel hook-up and the third outlet is prevented and in the second actuation member second position, fuel flow through the second fuel hook-up and the third outlet is permittedwherein the first valve member is configured to open a flow path to the second outlet so that fluid received at the first inlet is discharged to the second outlet and the second valve member is configured to open a flow path to the third outlet so that fluid received at the first inlet is discharged to the third outlet. 2. The heater assembly of claim 1, further comprising a spring operatively coupled to the first actuation member to bias the actuation member towards the first position. 3. The heater assembly of claim 1, wherein the actuation member comprises a rod configured for linear advancement from the first position to the second position. 4. The heater assembly of claim 1, wherein the first and second actuation members respectively comprise third and fourth valve members. 5. The heater assembly of claim 4, wherein each of the first and second actuation members further comprises a separate movable member positioned respectively between the first and third valve members and the second and fourth valve members. 6. The heater assembly of claim 5, wherein the second valve member is positioned at the first fuel hook-up and the fourth valve member is positioned at the second fuel hook-up. 7. The heater assembly of claim 1, further comprising a control valve, a nozzle, and a pilot or oxygen depletion sensor. 8. A dual fuel heater comprising the heater assembly of claim 1 and a burner, wherein the heater assembly is configured to direct fuel to the burner. 9. The dual fuel heater of claim 8, further comprising a control valve associated with the burner and positioned in a fuel path between the heater assembly and the burner, wherein the housing is configured to both direct fluid to the control valve from the first outlet and receive a flow of fluid from the control valve at the first inlet. 10. A dual fuel heater assembly comprising: a first pressure regulator configured to regulate a fuel flow of a first fuel type within a first predetermined range;a second pressure regulator configured to regulate a fuel flow of a second fuel type within a second predetermined range different from the first;first, second, third, and fourth valve members; anda housing defining: first and second fuel hook-ups;a first inlet; andfirst, second, and third outlets;wherein the housing further defines two sets of parallel flow paths, the first set of parallel flow paths comprising: a first flow path from the first fuel hook-up to the first pressure regulator and then to the first outlet, the first valve member positioned within the first flow path; anda second flow path from the second fuel hook-up to the second pressure regulator and then to the first outlet, the second valve member positioned withinthe second flow path;the second set of parallel flow paths comprising: a third flow path from the first inlet to the second outlet, the third valve member positioned within the third flow path; anda fourth flow path from the first inlet to the third outlet, the fourth valve member positioned within the fourth flow path;wherein, connecting a fuel source to the first fuel hook-up advances the first and third valve members thereby opening the first and third flow paths; andwherein, connecting a fuel source to the second fuel hook-up advances the second and fourth valve members thereby opening the second and fourth flow paths. 11. The dual fuel heater assembly of claim 10, wherein the first valve member is positioned within the first fuel hook-up and the second valve member is positioned within the second fuel hook-up. 12. The dual fuel heater assembly of claim 10, further comprising first and second actuators positioned respectively within the first and second fuel hook-ups. 13. A dual fuel heater comprising the dual fuel heater assembly of claim 10 and a burner, wherein the dual fuel heater assembly is configured to direct fuel to the burner. 14. The dual fuel heater of claim 13, further comprising a control valve associated with the burner and positioned in a fuel path between the dual fuel heater assembly and the burner, wherein the housing is configured to both direct fluid to the control valve from the first outlet and receive a flow of fluid from the control valve at the first inlet.
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