Ventilator apparatus

Claim 1

A ventilator assembly, comprising: a generally elongated ventilator housing formed as a parallelepiped having a first and a second end with a front wall thereon formed as a flap cover and with a rear wall; air inlet openings provided in said front wall at one of said first and said second ends and in said rear wall at one of said first and said second ends; air outlet openings provided in said front wall at the other of said first and said second ends and in said rear wall at the other of said first and said second ends; a heat exchanger unit removably mounted within said housing between said first and second ends, said heat exchanger unit having one end facing said first end of said ventilator housing and another end facing said second end of said housing; means defining a primary airstream between said air inlet openings in said rear wall and said air outlet openings in said front wall; means defining a secondary airstream between said air inlet openings in said front wall and said air outlet openings in said rear wall; said heat exchanger unit being located to have both said primary and said secondary airstreams flow therethrough in heat exchange relationship with each other, said heat exchanger unit comprising separator means dividing each of said primary and said secondary airstreams into numerous smaller partial airstreams, said separator means comprising separator members made of material having high thermal conductivity, each separating a smaller partial primary airstream from a smaller partial secondary airstream; said one end of said heat exchange unit and said another end of said heat exchanger unit each being formed with inlet openings and outlet openings for both said primary and secondary partial airstreams, with each of said ends of said heat exchanger unit being defined by a pair of walls extending relative to each other at an angle not greater than 90°; said inlet and outlet openings in said ends of said heat exchanger unit for said primary partial airstreams being arranged in planes approximately parallel to each other and said inlet and outlet openings for said secondary partial airstreams being also arranged in planes approximately parallel to each other; each of said ends of said heat exchanger unit being formed by an angular distributor piece, said separator members comprising plates arraged to extend between said angular distributor pieces, each of said plates being formed with triangular ends opposite each other, with said distributor pieces including angular legs each of which comprise air passage slits forming said inlet and outlet openings with a number of said slits being approximately the same as the number of said plates; and primary and secondary air blower means for blowing said primary and secondary airstreams, respectively, through said flow paths.