Hot water controlling device

Claim 2

A hot water control device comprising a burner; a hot water circulating passage having a radiator, a first heat exchanger which is heated by the burner, a forward passage connecting one end of said heat exchanger with one end of said radiator, a backward passage connecting the other end of said first heat exchanger with the other end of said radiator, and a circulation pump in the mid-portion of the circulating passage; a bypass passage connected between said forward passage and said backward passage for forming a short hot water circulating circuit near saId first heat exchanger, said bypass passage including said circulation pump; a first fluid device disposed in said forward passage, said first fluid device including an annular supply port connected with the upstream of said forward passage, an annular nozzle formed adjacent to said supply port, an annular interaction region, first and second output ports which diverge from said nozzle as an inner and an outer port through said interaction region, said first output port being connected with the downstream of said forward passage and said second output port being connected with said bypass passage, and a control passage connected to said interaction region for providing control water to said interaction region; a control device for said first fluid device for detecting the temperature of the water in said forward passage and opening and closing said control passage of said first fluid device depending on the water temperature; a hot water supply circuit including a second heat exchanger for providing hot water in the hot water supply circuit, said second heat exchanger being connected to said bypass passage; a water pressure responsive device which operates according to the water pressure difference between the upstream and the downstream of the hot water supply circuit, said control device including a heat responsive means responsive to the temperature variation of the water in said forward passage, said water pressure responsive device including means, in parallel with said heat responsive means, for opening and closing said control passage; and a control port connected with said control passage, said control port being formed on the whole portion of one of said output ports in said interaction region.

Claim 3

A hot water control device including a burner comprising a hot water circulating passage having a radiator, a first heat exchanger which is heated by the burner, a forward passage connecting one end of said first heat exchanger with one end of said radiator, a backward passage connecting the other end of said first heat exchanger with the other end of said radiator, and a circulation pump in the mid-portion of the circulating passage; a bypass passage connected between said forward passage and said backward passage for forming a short hot water circulating circuit near said first heat exchanger, said bypass passage including said circulation pump; a fluid device disposed in said forward passage, said fluid device including a supply port connected with the upstream of said forward passage, a nozzle formed adjacent to said supply port, an interaction region, first and second output ports which diverge from said nozzle through said interaction region, said first output port being connected with the downstream of said forward passage and said second output port being connected with said bypass passage, and a control passage connected to said interaction region for providing control water to said interaction region; a control device for said fluid device for detecting the temperature of the water in said forward passage and opening and closing said control passage of said fluid device depending on the water temperature; a hot water supply circuit including a second heat exchanger for providing hot water in the hot water supply circuit, said second heat exchanger being connected to said bypass passage; and a water pressure responsive device which operates according to the water pressure difference between the upstream and the downstream of the hot water supply circuit, said fluid device including a movable wall, adjacent to said interaction region so that said movable wall may be moved into and out of said interaction region, said movable wall being connected with said water pressure responsive device.

Claim 4

A hot water control device including a burner comprising a hot water circulating passage having a radiator, a first heat exchanger which is heated by the burner, a forward passage connecting one end of said first heat exchanger with one end of said radiator, a backward passage connecting the other end of said first heat exchanger with the other end of said radiator, and a circulation pump in the mid-portion of the circulating passage; a bypass passage connected between said forward passage and said backward passage for forming a short hot water circulating circuit near said first heat exchanger, said bypass passage including said circulation pump; a fluid device disposed in said forward passage, said fluid device including a supply port connected with the upstream of said forward passage, a nozzle formed adjacent to said supply port, an interaction region, first and second output ports which diverge from said nozzle through said interaction region, said first output port being connected with the downstream of said forward passage and said second output port being connected with said bypass passage, and a control passage connected to said interaction region for providing control water to said interaction region; a control device for said fluid device for detecting the temperature of the water in said forward passage and opening and closing said control passage of said fluid device depending on the water temperature; a hot water supply circuit including a second heat exchanger for providing hot water in the hot water supply circuit, said second heat exchanger being connected to said bypass passage; and a water pressure responsive device which operates according to the water pressure difference between the upstream and the downstream of the hot water supply circuit, said fluid device including a movable wall, adjacent to said interaction region so that said movable wall may be moved into and out of said interaction region, said movable wall being connected with said water pressure responsive device.

Claim 5

A hot water control device including a burner comprising a hot water circulating passage having a radiator, a first heat exchanger which is heated by the burner, a forward passage connecting one end of said heat exchanger with one end of said radiator, a backward passage connecTing the other end of said heat exchanger with the other end of said radiator, and a circulation pump in the mid-portion of the circulating passage; a bypass passage connected between said forward passage and said backward passage for forming a short hot water circulating circuit near said first heat exchanger, said bypass passage including said circulation pump; a first fluid device disposed in said forward passage, said first fluid device including a first supply port connected with the upstream of said forward passage, a first nozzle formed adjacent to said first supply port, a first interaction region, first and second output ports which diverge from said first nozzle through said first interaction region, said first output port being connected with the downstream of said forward passage and said second output port being connected with said bypass passage, and a first control passage connected to said first interaction region for providing control water to said first interaction region; a control device for said first fluid device for detecting the temperature of the water in said forward passage and opening and closing said first control passage of said first fluid device depending on the water temperature; a hot water supply unit having a forward passage conduit connected with said forward passage of said hot water circulating passage and a backward passage conduit connected with said backward passage of said hot water circulating passage for heating, said hot water supply unit including a hot water supply circuit having a connecting passage extending between said forward passage conduit and said backward passage conduit, said connecting passage having a second heat exchanger for providing hot water for said hot water supply circuit; a second fluid device disposed in the forward passage conduit, said second fluid device including a second supply port connected with the upstream of the forward passage conduit, a second nozzle formed adjacent to said second supply port, a second interaction region adjacent said second nozzle, third and fourth output ports diverging out of said second interaction region, said third output port being connected with the downstream of the forward passage conduit and said fourth output port being connected with said connecting passage, and a second control passage connected with said second interaction region; and a water pressure responsive device for opening and closing said second control passage by detecting the water pressure difference between the upstream and downstream of said hot water supply circuit.

Claim 6

A hot water control device including a burner comprising a hot water circulating passage having a radiator, a first heat exchanger which is heated by the burner, a forward passage connecting one end of said heat exchanger with one end of said radiator, a backward passage connecTing the other end of said heat exchanger with the other end of said radiator, and a circulation pump in the mid-portion of the circulating passage; a bypass passage connected between said forward passage and said backward passage for forming a short hot water circulating circuit near said first heat exchanger, said bypass passage including said circulation pump; a first fluid device disposed in said forward passage, said first fluid device including a first supply port connected with the upstream of said forward passage, a first nozzle formed adjacent to said first supply port, a first interaction region, first and second output ports which diverge from said first nozzle through said first interaction region, said first output port being connected with the downstream of said forward passage and said second output port being connected with said bypass passage, and a first control passage connected to said first interaction region for providing control water to said first interaction region; a control device for said first fluid device for detecting the temperature of the water in said forward passage and opening and closing said first control passage of said first fluid device depending on the water temperature; a hot water supply unit having a forward passage conduit connected with said forward passage of said hot water circulating passage and a backward passage conduit connected with said backward passage of said hot water circulating passage for heating, said hot water supply unit including a hot water supply circuit having a connecting passage extending between said forward passage conduit and said backward passage conduit, said connecting passage having a second heat exchanger for providing hot water for said hot water supply circuit; a second fluid device disposed in the forward passage conduit, said second fluid device including a second supply port connected with the upstream of the forward passage conduit, a second nozzle formed adjacent to said second supply port, a second interaction region adjacent said second nozzle, third and fourth output ports diverging out of said second interaction region, said third output port being connected with the downstream of the forward passage conduit and said fourth output port being connected with said connecting passage, and a second control passage connected with said second interaction region; and a water pressure responsive device for opening and closing said second control passage by detecting the water pressure difference between the upstream and downstream of said hot water supply circuit.

Claim 7

A hot water control device comprising: a. a hot water circulating passage for heating comprising a forward passage extending to a radiator from a first heat exchanger heated by a burner and a backward passage extending to said first heat exchanger from the radiator, and having a circulation pump in mid course thereof; b. a bypass passage for shorting said forward and backward passages; c. a second heat exchanger for a hot water supply circuit, provided in said bypass passage; d. a pure fluidic device at a diverging portion of said forward passage and bypass passage, and comprising (i) a supply port connected with the upstream of said forward passage, (ii) a nozzle formed ahead of said supply port, (iii) first and second output ports diverging ahead from said nozzle through an interaction region, said first output port being connected with the downstream of said forward passage, and said second output port being connected with said bypass passage, and (iv) a control passage; e. a fluidic device control valve for adjusting the degree of opening of said control passage of said pure fluidic device in response to a stream of fluid in said hot water supply circuit, and f. a heat sensitive valve, operable in response to the temperature of hot water in said forward passage, provided in said control passage of said pure fluidic device in parallel with said fluidic device control valve.

Claim 8

A hot water control device comprising: a. a hot water circulating passage for heating comprising a forward passage extending to a radiator from a first heat exchanger heated by a burner and a backward passage extending to said first heat exchanger from the radiator, and having a circulation pump in mid course thereof; b. a bypass passage for shorting said forward and backward passages; c. a second heat exchanger for a hot water supply circuit, provided in said bypass passage; d. a pure fluidic device at a diverging portion of said forward passage and bypass passage, and comprising (i) a supply port connected with the upstream of said forward passage, (ii) a nozzle formed ahead of said supply port, (iii) first and second output ports diverging ahead from said nozzle through an interaction region, said first output port being connected with the downstream of said forward passage, and said second output port being connected with said bypass passage, and (iv) a control passage; e. a fluidic device control valve for adjusting the degree of opening of said control passage of said pure fluidic device in response to a stream of fluid in said hot water supply circuit, and f. a heat sensitive valve, operable in response to the temperature of hot water in said forward passage, provided in said control passage of said pure fluidic device in parallel with said fluidic device control valve.

Claim 9

A hot water control device comprising: a. a hot water circulating passage for heating comprising a forward passage extending to a radiator from a first heat exchanger heated by a burner and a backward passage extending to said first heat exchanger from the radiator, and having a circulation pump in mid course thereof; b. a bypass passage for shorting said forward and backward passages; c. a second heat exchanger for a hot water supply circuit, provided in said bypass passage; d. a pure fluidic device at a diverging portion of said forward passage and bypass passage, and comprising (i) a supply port connected with the upstream of said forward passage, (ii) a nozzle formed ahead of said supply port, (iii) first and second output ports diverging ahead from said nozzle through an interaction region, said first output port being connected with the downstream of said forward passage, and said second output port being connected with said bypass passage, and (iv) a control passage; e. a fluidic device control valve for adjusting the degree of opening of said control passage of said pure fluidic device in response to a stream of fluid in said hot water supply circuit, and f. a fuel valve co-operating with a pressure responsive device and provided in a fuel supply passage led to the burner, said pressure responsive device having higher pressure and lower pressure chambers which are connected respectively with the upstream and downstream separated by the nozzle of said pure fluidic device.

Claim 10

A hot water control device comprising: a. a hot water circulating passage for heating comprising a forward passage extending to a radiator from a first heat exchanger heated by a burner and a backward passage extending to said first heat exchanger from the radiator, and having a circulation pump in mid course thereof; b. a bypass passage for shorting said forward and backward passages; c. a second heat exchanger for a hot water supply circuit, provided in said bypass passage; d. a pure fluidic device at a diverging portion of said forward passage and bypass passage, and comprising (i) a supply port connected with the upstream of said forward passage, (ii) a nozzle formed ahead of said supply port, (iii) first and second output ports diverging ahead from said nozzle through an interaction region, said first output port being connected with the downstream of said forward passage, and said second output port being connected with said bypass passage, and (iv) a control passage; e. a fluidic device control valve for adjusting the degree of opening of said control passage of said pure fluidic device in response to a stream of fluid in said hot water supply circuit, and f. a fuel valve co-operating with a pressure responsive device and provided in a fuel supply passage led to the burner, said pressure responsive device having higher pressure and lower pressure chambers which are connected respectively with the upstream and downstream separated by the nozzle of said pure fluidic device.