Patents Assigned to DAIKIN EUROPE N.V.
  • Publication number: 20220186989
    Abstract: A compressor unit includes a first case, a first compressor, a cascade heat exchanger, a second compressor, a first connecting port, and a second connecting port. The first compressor, the cascade heat exchanger, and a heat source heat exchanger accommodated in a second case constitute a first refrigerant cycle. The second compressor, the cascade heat exchanger, and a utilization heat exchanger accommodated in a third case constitute a second refrigerant cycle. The first connecting port is connected to the heat source heat exchanger via a first connection piping. The second connecting port is connected to the utilization heat exchanger via a second connection piping.
    Type: Application
    Filed: March 3, 2022
    Publication date: June 16, 2022
    Applicants: DAIKIN INDUSTRIES, LTD., DAIKIN EUROPE N.V.
    Inventors: Takahiro YAMAGUCHI, Yousuke MATSUDA
  • Publication number: 20220178557
    Abstract: A heat source unit for a heat pump having a refrigerant circuit, the heat source unit having: an outer casing including a bottom plate; and a compressor assembly accommodated in the outer casing, the compressor assembly including a compressor of the refrigerant circuit of the heat pump including a compressor housing, a support plate supporting the compressor, the support plate being mounted via dampers to the bottom plate, and a compressor casing enclosing the compressor and the compressor housing. A damping mechanism is arranged between the compressor and the support plate, and the compressor casing is fixed to the support plate out of contact with the compressor housing.
    Type: Application
    Filed: February 14, 2020
    Publication date: June 9, 2022
    Applicants: DAIKIN INDUSTRIES, LTD., DAIKIN EUROPE N.V.
    Inventors: Kouta YOSHIKAWA, Wim VANSTEENKISTE, Akshay HATTIANGADI, Jose Daniel GARCIA LOPEZ, Tom SURMONT, Rishi MEHTA
  • Publication number: 20220136750
    Abstract: An outdoor unit for a heat pump includes a refrigerant circuit, the outdoor unit including a compressor, a discharge pipe of the refrigerant circuit connected to a discharge side of the compressor, a bottom plate, the bottom plate having a base and an outer flange protruding upward from an outer edge of the base, a heat source heat exchanger supported on the bottom plate, a liquid refrigerant pipe of the refrigerant circuit connected to the heat source heat exchanger, and a defrosting bypass pipe connected at one end to the discharge pipe and at the opposite end to the liquid refrigerant pipe, the defrosting bypass pipe being arranged between an inner side of the flange and an outer side of the heat source heat exchanger.
    Type: Application
    Filed: March 6, 2020
    Publication date: May 5, 2022
    Applicants: DAIKIN INDUSTRIES, LTD., DAIKIN EUROPE N.V.
    Inventors: Kouta YOSHIKAWA, Wim VANSTEENKISTE, Akshay HATTIANGADI, Jose Daniel GARCIA LOPEZ, Tom SURMONT, Rishi MEHTA
  • Patent number: 11313585
    Abstract: A heat exchanger includes front and rear walls forming a flue gas space such that a fluid flowing through a channel formed in the front and rear walls can exchange heat with flue gas in the flue gas space, in use. An entirety of the back wall extends along a first plane, and the back wall is provided with a back fin. The front wall includes a lower portion extending upwardly along the back wall, and an upper portion extending upwardly from an upper end of the lower portion and outwardly away from the back wall to form a combustion space of a flammable gas between the upper portion and the back wall. The upper portion is provided with a front fin. The front and back fins are arranged symmetrically with respect to a virtual line along which the flammable gas is to be injected into the combustion space.
    Type: Grant
    Filed: November 22, 2016
    Date of Patent: April 26, 2022
    Assignees: Daikin Industries, Ltd., DAIKIN EUROPE N.V.
    Inventors: Serhan M Kilic, Hakan Peker, Aydin Tuna
  • Patent number: 11231190
    Abstract: A filter cleaning device for an air conditioner includes: a casing; a filter that is disposed in the casing and through which an air flow passes; a cleaning brush that is contactable with the filter surface and removes particulate matter from the filter surface; and a dust box that receives the particulate matter, and includes a housing accommodating the cleaning brush and having an opening through which the cleaning brush protrudes to contact a filter surface, a suction tool that includes an outlet in the housing to communicate with the dust box, and applies a suction force to the dust box to remove the particulate matter from the dust box; and a lid that is movable between first and second positions, and closes the opening of the housing in the second position when the suction force is applied.
    Type: Grant
    Filed: July 25, 2017
    Date of Patent: January 25, 2022
    Assignees: DAIKIN INDUSTRIES, LTD., DAIKIN EUROPE N.V.
    Inventors: Ivan Suchansky, Ludek Vyvoda
  • Publication number: 20220018571
    Abstract: An air-conditioner includes: a return-air inlet and a supply-air outlet each communicating with a predetermined space; a first main air channel configured to allow air to flow therein towards the supply-air outlet; a first heat exchanger disposed in the first main air channel and that causes heat-exchange between refrigerant flowing therein and air passing therethrough; an exhaust-air outlet communicating with an outside of the predetermined space; a second main air channel configured to allow air to flow therein towards the exhaust-air outlet; a second heat exchanger disposed in the second main air channel and that causes heat-exchange between refrigerant flowing therein and air passing therethrough; and an exhaust ventilation channel configured to allow air to flow therein from the return-air inlet towards the exhaust-air outlet.
    Type: Application
    Filed: December 5, 2019
    Publication date: January 20, 2022
    Applicants: DAIKIN INDUSTRIES, LTD., DAIKIN EUROPE N.V.
    Inventors: Takahiro Yamaguchi, Stefan Vandaele
  • Patent number: 11209182
    Abstract: A system for air-conditioning and hot-water supply is configured to selectively perform a cooling operation and a heating operation. The system includes: an outdoor unit having a compressor and an outdoor heat exchanger; at least one or more indoor units each of which is connected to the outdoor unit and includes an indoor heat exchanger; a hot-water supply unit connected to the outdoor unit so as to be arranged in parallel to the at least one or more indoor units and including a refrigerant-water heat exchanger; and a controller configured to monitor an occurrence of a request for hot-water supply from the hot-water supply unit during the cooling operation performed at at least one of the indoor units, and then to start the heating operation. The controller is further configured to determine a time point to resume the cooling operation based on at least one of an outdoor temperature and a target temperature of at least one indoor unit in the heating operation.
    Type: Grant
    Filed: September 14, 2017
    Date of Patent: December 28, 2021
    Assignees: DAIKIN INDUSTRIES, LTD., DAIKIN EUROPE N.V.
    Inventors: Hideo Chikami, Tim Coessens
  • Patent number: 11199349
    Abstract: A heat source unit for an air conditioner that includes a refrigerant circuit, the heat source unit includes: an external housing; and a cooling heat exchanger disposed in the external housing and that is connected to the refrigerant circuit. The external housing accommodates: a compressor connected to the refrigerant circuit; a heat source heat exchanger that is connected to the refrigerant circuit and that exchanges heat between a refrigerant circulating in the refrigerant circuit and a heat source; and an electric box. The electrical box: includes a top and a plurality of side walls; accommodates electrical components that control the air conditioner; and further includes an air passage that includes an air inlet and an air outlet. An air flow is induced through the air passage from the air inlet to the air outlet for cooling at least some of the electrical components.
    Type: Grant
    Filed: February 9, 2018
    Date of Patent: December 14, 2021
    Assignees: DAIKIN INDUSTRIES, LTD., DAIKIN EUROPE N.V.
    Inventors: Pieter Pirmez, Satoshi Kawano, Akiharu Kojima
  • Patent number: 11131466
    Abstract: A heat source unit for an air conditioner that includes a refrigerant circuit includes: an external housing; and a cooling heat exchanger that is disposed in the external housing and that is connected to the refrigerant circuit. The external housing accommodates: a compressor connected to the refrigerant circuit; a heat source heat exchanger that is connected to the refrigerant circuit and that exchanges heat between a refrigerant circulating in the refrigerant circuit and a heat source; and an electric box. The electric box includes a top and a plurality of side walls; accommodates electrical components that control the air conditioner; and further includes an air passage that includes an air inlet and an air outlet. An air flow is induced through the air passage from the air inlet to the air outlet for cooling at least some of the electrical components.
    Type: Grant
    Filed: February 9, 2018
    Date of Patent: September 28, 2021
    Assignees: DAIKIN INDUSTRIES, LTD., DAIKIN EUROPE N.V.
    Inventors: Pieter Pirmez, Satoshi Kawano, Akiharu Kojima
  • Patent number: 11009268
    Abstract: A system for air-conditioning and hot-water supply is configured to selectively perform a cooling operation and a heating operation. The system includes: an outdoor unit having a compressor and an outdoor heat exchanger; a plurality of indoor units each of which is connected to the outdoor unit and includes an indoor heat exchanger; a hot-water supply unit connected to the outdoor unit so as to be arranged in parallel to the indoor unit and including a refrigerant-water heat exchanger; and a controller configured to monitor a request for hot-water supply from the hot-water supply unit. The controller is further configured to continue a cooling operation after the request has occurred and until a predetermined condition is satisfied where the request for hot-water supply has occurred during the cooling operation at at least one of the plurality of indoor units, and then to start a heating operation.
    Type: Grant
    Filed: September 14, 2017
    Date of Patent: May 18, 2021
    Assignees: DAIKIN INDUSTRIES, LTD., DAIKIN EUROPE N.V.
    Inventors: Hideo Chikami, Tim Coessens
  • Patent number: 10976073
    Abstract: A heat exchanger system includes a heat exchange main unit having a gas channel and a fluid channel configured such that a fluid in the fluid channel can exchange heat with a flue gas in the gas channel, a housing, a drain collecting part arranged to collect condensate from the flue gas, and a siphon attached to the drain collecting part to prevent release of the flue gas from a condensate outlet. The siphon has a tubular body, first portion having a condensate inlet, and second portion having the condensate outlet and an operation member. When the tubular body is attached to the drain collecting part, the first portion is connected to the drain collecting part, the first and second portions can be at least partially located inside and outside the housing, and the operation member can be located outside the housing. The first and second portions are detachably attached.
    Type: Grant
    Filed: December 6, 2016
    Date of Patent: April 13, 2021
    Assignees: Daikin Industries, Ltd., DAIKIN EUROPE N.V.
    Inventors: Serhan M Kilic, Hakan Peker, Abdulkadir Akyol
  • Patent number: 10921023
    Abstract: Provided is a system for air-conditioning and hot-water supply configured to selectively perform cooling and heating operations, comprising: an outdoor unit having a compressor and an outdoor heat exchanger; at least one or more indoor units each of which is connected to the outdoor unit and includes an indoor heat exchanger; a hot-water supply unit connected to the outdoor unit so as to be arranged in parallel to the indoor unit and including a refrigerant-water heat exchanger; a controller configured to monitor for a request for hot-water supply from the hot-water supply unit while a cooling operation is being performed in at least one of the indoor units, and then to start the heating operation in accordance with the request; wherein the controller transmits to all of the indoor units, which are turned on for said cooling operation, a fan-stop command to stop a fan arranged at each indoor unit.
    Type: Grant
    Filed: September 14, 2017
    Date of Patent: February 16, 2021
    Assignees: DAIKIN INDUSTRIES, LTD., DAIKIN EUROPE N.V.
    Inventors: Hideo Chikami, Tim Coessens
  • Patent number: 10852032
    Abstract: A heat exchanger includes front and back walls forming a flue gas space such that a fluid flowing through a channel formed in the front and back walls can exchange heat with flue gas in the flue gas space, in use. The front wall includes a lower portion extending along the back wall, and an upper portion extending upwardly from an upper end of the lower portion and outwardly away from the back wall to form a combustion space of a flammable gas between the upper portion and the back wall. A length of the upper portion along a longitudinal direction thereof is longer than a length of the lower portion along a longitudinal direction thereof.
    Type: Grant
    Filed: November 22, 2016
    Date of Patent: December 1, 2020
    Assignees: Daikin Industries, Ltd., Daikin Europe N.V.
    Inventors: Serhan M Kilic, Hakan Peker, Aydin Tuna
  • Patent number: 10852035
    Abstract: A heat exchange system includes a heat exchange main unit having a gas channel and a fluid channel configured such that a fluid in the fluid channel can exchange heat with a flue gas in the gas channel, a housing, a drain collecting part arranged to collect condensate from the flue gas, and a siphon detachably attached to the drain collecting part to prevent release of the flue gas from a condensate outlet formed in the siphon. The siphon has a tubular body, a condensate inlet formed on one end side, and the condensate outlet formed on an other end side. The tubular body has an attaching part to detachably attach the tubular body to the drain collecting part through a hole formed within a wall of the housing, and a grip located outside the housing when the tubular body is attached to the drain collecting part.
    Type: Grant
    Filed: December 6, 2016
    Date of Patent: December 1, 2020
    Assignees: Daikin Industries, Ltd., Daikin Europe N.V.
    Inventors: Serhan M Kilic, Hakan Peker, Abdulkadir Akyol
  • Patent number: D883460
    Type: Grant
    Filed: March 7, 2019
    Date of Patent: May 5, 2020
    Assignees: DAIKIN INDUSTRIES LTD., DAIKIN EUROPE N.V.
    Inventors: Hiroyasu Kosuge, Alexander Schlag, Michael Kuepper
  • Patent number: D941804
    Type: Grant
    Filed: May 15, 2020
    Date of Patent: January 25, 2022
    Assignees: DAIKIN INDUSTRIES, LTD., DAIKIN EUROPE N.V.
    Inventor: Hiroyasu Kosuge
  • Patent number: D946725
    Type: Grant
    Filed: February 20, 2020
    Date of Patent: March 22, 2022
    Assignees: DAIKIN INDUSTRIES, LTD., DAIKIN EUROPE N.V.
    Inventor: Hiroyasu Kosuge
  • Patent number: D946726
    Type: Grant
    Filed: February 20, 2020
    Date of Patent: March 22, 2022
    Assignees: DAIKIN INDUSTRIES, LTD., DAIKIN EUROPE N.V.
    Inventor: Hiroyasu Kosuge
  • Patent number: D946727
    Type: Grant
    Filed: February 20, 2020
    Date of Patent: March 22, 2022
    Assignees: DAIKIN INDUSTRIES, LTD., DAIKIN EUROPE N.V.
    Inventor: Hiroyasu Kosuge
  • Patent number: D952813
    Type: Grant
    Filed: December 21, 2021
    Date of Patent: May 24, 2022
    Assignees: DAIKIN INDUSTRIES, LTD., DAIKIN EUROPE N.V.
    Inventor: Hiroyasu Kosuge