Heat pump apparatus for air renewal in domestic rooms and the method of operation thereof
AssigneeEvolving Living Innovation Center E.L.I.C. S.R.L.
InventorRobert FLORIAN
Life of this patent
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Abstract
A heat pump apparatus for air renewal in rooms and, in particular, to an improved compact heat pump apparatus with components contained in a single casing to be mounted inside a room. Moreover, the invention is related to a method of operation of the apparatus inside a room able to activate a heat recovery action and/or renewal of stale air, heating, cooling or dehumidification.
Claims16
A heat pump apparatus for air renewal in domestic rooms, comprising a box element to be fixed to a wall or ceiling inside a domestic room, the box element being adapted to contain a compressor for the circulation of a working fluid under pressure, a four-way valve for diverting the flow of the fluid towards a first heat exchanger combined with a first fan for extracting the inside air, or towards a second heat exchanger combined with a fan for introducing air into the room, a laminar element, and further comprising a duct for connecting the box element with the outside, characterized in that wherein an closing/opening valve fully intercepts the flow of the working fluid downstream of the compressor and upstream of the four-way valve.
A method of operation of a heat pump apparatus for air renewal of domestic rooms, comprising the following steps in succession:
- providing a thermodynamic heat pump circuit comprising a compressor with a cooling capacity lower than 0.8 KW;
- mounting the circuit entirely inside a domestic room and connecting the circuit with the outside through a duct;
- creating an air flow that passes through two heat exchangers of the thermodynamic circuit;
- switching on the compressor of the heat pump to force a working fluid into a four-way valve while keeping the working fluid passage closed downstream of the compressor and upstream of the four-way valve until a difference in pressure of the working fluid between the discharge side of the compressor and the inlet of the four-way valve greater than 2.5 bar is obtained;
- abruptly opening the downstream passage of the compressor once the aforesaid difference in pressure is reached in order to exercise a thrust sufficient to command the full displacement and locking of the piston of the four-way valve in the preset position.
Dependencies are inferred from the claim text.