# US 2024/0200822 A1 · Ventilation system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2024/0200822 A1 - Document ID: US20240200822A1 - Status: Published application - Kind: A1 - Application number: 18/539,432 - Filed: 2023-12-14 - Published: 2024-06-20 - Earliest claimed: 2022-12-15 - Assignees: Innergy Tech Inc. - Applicants: Innergy tech Inc. - Inventors: Anne-Julie MORNEAU-LEBEAU; Maxime GERVAIS - Web page: https://patentgrep.com/patent/US20240200822A1 ## CPC - F24F 12/001: {with heat-exchange between supplied and exhausted air} - F24F 7/08: with separate ducts for supplied and exhausted air {with provisions for reversal of the input and output systems} - F24F 7/10: with air supply, or exhaust, through perforated wall, floor or ceiling (outlet members for directing or distributing air {into rooms or spaces, e.g. ceiling air-diffusers} F24F13/06) - F24F 12/006: {using an air-to-air heat exchanger (F24F12/002 takes precedence)} - F24F 2007/001: {with exhausting air ducts} - Y02B 30/56: Heat recovery units - F24F: AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING (removing dirt or fumes from areas where they are produced B08B15/00; vertical ducts for carrying away waste gases from buildings E04F17/02; tops for chimneys or ventilating shafts, terminals for flues F23L17/02) - Y02B: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS ## Abstract A ventilation system having an energy recovery core having a plurality of energy recovery stages and a plurality of sets of stages spacers alternating with the plurality of energy recovery stages. Each energy recovery stage has upper and lower panels forming openings covered with an energy transfer sheet. ## Claims ### Claim 1 A ventilation system comprising: a housing defining an internal space and having a fresh-air inlet, a fresh-air outlet, an exhaust inlet, and an exhaust outlet; a blower configured to move air from the fresh-air inlet to the fresh-air outlet and/or from the exhaust inlet to the exhaust outlet; and an energy recovery core arranged in the internal space of the housing, the energy recovery core comprising a plurality of energy recovery stages; and a plurality of stage spacers alternating with the plurality of energy recovery stages. ### Claim 2 (depends on 1) The ventilation system of claim 1, wherein at least one energy recovery stage comprises and upper panel and a lower panel defining flow channels there between, and at least one of the upper panel and lower panel defines a plurality of openings therethrough. ### Claim 3 (depends on 2) The ventilation system of claim 2, further comprising an energy transfer sheet covering the plurality of openings. ### Claim 4 (depends on 1) The ventilation system of claim 1, wherein at least one energy recovery stage comprises and upper panel and a lower panel defining flow channels there between, and the upper panel defining a plurality of openings therethrough and the lower panel defining a plurality of openings therethrough. ### Claim 5 (depends on 4) The ventilation system of claim 4, further comprising a first energy transfer sheet covering the plurality of openings in the upper panel and a second energy transfer sheet covering the plurality of openings in the lower panel. ### Claim 6 (depends on 1) The ventilation system of claim 1, wherein each set of the plurality of stage spacers includes a first stage spacer arranged along a perimeter edge of an adjacent energy recovery stage, a second stage spacer arranged along an opposite perimeter edge of the adjacent energy recovery stage, and a third stage spacer arranged between the first and second stage spacers. ### Claim 7 (depends on 6) The ventilation system of claim 6, wherein the plurality of stage spacers space apart two adjacent energy recovery stages to define airflow passages. ### Claim 8 (depends on 7) The ventilation system of claim 7, wherein the airflow passages defined by the plurality of stage spacers are exhaust flow passages. ### Claim 9 An energy recovery core for a ventilation system, the energy recovery core comprising: a plurality of energy recovery stages; and a plurality stage spacers alternating with the plurality of energy recovery stages. ### Claim 10 (depends on 9) The energy recovery core of claim 9, wherein at least one energy recovery stage comprises and upper panel and a lower panel defining flow channels there between, and at least one of the upper panel and lower panel defines a plurality of openings therethrough. ### Claim 11 (depends on 10) The energy recovery core of claim 10, further comprising an energy transfer sheet covering the plurality of openings. ### Claim 12 (depends on 9) The energy recovery core of claim 9, wherein at least one energy recovery stage comprises and upper panel and a lower panel defining flow channels there between, and the upper panel defining a plurality of openings therethrough and the lower panel defining a plurality of openings therethrough. ### Claim 13 (depends on 12) The energy recovery core of claim 12, further comprising a first energy transfer sheet covering the plurality of openings in the upper panel and a second energy transfer sheet covering the plurality of openings in the lower panel. ### Claim 14 (depends on 9) The energy recovery core of claim 9, wherein each set of the plurality of stage spacers includes a first stage spacer arranged along a perimeter edge of an adjacent energy recovery stage, a second stage spacer arranged along an opposite perimeter edge of the adjacent energy recovery stage, and a third stage spacer arranged between the first and second stage spacers. ### Claim 15 (depends on 14) The energy recovery core of claim 14, wherein the plurality of stage spacers space apart two adjacent energy recovery stages to define airflow passages. ### Claim 16 (depends on 15) The energy recovery core of claim 15, wherein the airflow passages defined by the plurality of stage spacers are exhaust flow passages. ### Claim 17 An energy recovery core for a ventilation system, the energy recovery core comprising: a plurality of energy recovery stages, wherein at least one energy recovery stage comprises an upper panel and a lower panel defining flow channels there between, wherein the upper panel defining a plurality of openings therethrough and the lower panel defining a plurality of openings therethrough; and a first energy transfer sheet covering the plurality of openings in the upper panel and a second energy transfer sheet covering the plurality of openings in the lower panel. ### Claim 18 (depends on 17) The energy recovery core of claim 17, further comprising a plurality stage spacers alternating with the plurality of energy recovery stages. ### Claim 19 (depends on 17) The energy recovery core of claim 17, wherein the first energy transfer sheet comprises a hydrophile coating. ### Claim 20 (depends on 19) The energy recovery core of claim 19, wherein the second energy transfer sheet comprises a hydrophile coating.