# US 11,028,857 B2 · Cooling module with blower system having opposite, blower and impeller outlets for information handling systems > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,028,857 B2 - Document ID: US11028857B2 - Status: Granted - Kind: B2 - Application number: 16/575,251 - Filed: 2019-09-18 - Published: 2021-03-18 - Granted: 2021-06-08 - Earliest claimed: 2019-09-18 - Assignees: Dell Products L.P. - Applicants: Dell Products, LP - Inventors: Qinghong He - Web page: https://patentgrep.com/patent/US11028857B2 ## CPC - F04D 29/30: Vanes - F04D 29/4246: {comprising more than one outlet} - F04D 19/007: {multistage fans} - F04D 19/024: {with contrarotating parts} - F04D 29/281: {for fans or blowers} - F04D 29/4226: {Fan casings} - H05K 7/20172: {Fan mounting or fan specifications} - F04D 25/08: the working fluid being air, e.g. for ventilation - F05D 2240/30: Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor - F04D: NON-POSITIVE-DISPLACEMENT PUMPS (engine fuel-injection pumps F02M; ion pumps H01J41/12; electrodynamic pumps H02K44/02) - H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS - F05D: INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS ## Abstract An information handling system comprising a chassis supporting a central processor, a graphics processor, a memory, and a power source and a dual opposite combined blower and impeller system having a powered blower fan for rotating a plurality of blades within a dual opposite combined blower and impeller system housing where the dual opposite combined blower and impeller system housing includes first surface and a second surface oppositely disposed on either side of a rotational plane of the powered blower fan, a first side wall and a second side wall oppositely disposed to the first side wall. The dual opposite combined blower and impeller system housing includes a first blower outlet aperture in the rotational plane of the blower fan moving air in a first direction on a blower side and a second, curvilinear impeller aperture in the rotational plane of the blower fan moving air in a spread airflow in a second direction generally opposite to the first direction. ## Claims ### Claim 1 A dual opposite combined blower and impeller system comprising: a power source and a blower fan motor for rotating a blower fan having a plurality of blades and a fan diameter for rotation of the blower fan in a rotational plane; a dual opposite combined blower and impeller system housing including first surface having a fan inlet aperture, a second surface oppositely disposed of the first surface on which the blower fan is operatively coupled inside the dual opposite combined blower and impeller system housing, a first side wall having a first notch extending inward along the fan diameter, and a second side wall oppositely disposed to the first side wall to form the dual opposite combined blower and impeller system housing; the dual opposite combined blower and impeller system housing including a first outlet aperture between the first side wall and the second side wall in the rotational plane of the blower fan; and the dual opposite combined blower and impeller system housing including a second, curvilinear impeller aperture between the first side wall and the second side wall in the rotational plane of the blower fan disposed opposite the first outlet aperture, wherein the second, curvilinear impeller aperture curves around a diameter of the blower fan on the impeller side of the dual opposite combined blower and impeller system. ### Claim 2 (depends on 1) The dual opposite combined blower and impeller system of claim 1 wherein the second, curvilinear impeller aperture provides a spread airflow angle of at least 30 degrees from the blower fan. ### Claim 3 (depends on 1) The dual opposite combined blower and impeller system of claim 1 wherein the fan diameter including the plurality of blades is greater than 85% of a width of the dual opposite combined blower and impeller system housing between the first side wall and the second side wall. ### Claim 4 (depends on 1) The dual opposite combined blower and impeller system of claim 1 wherein the plurality of blades extend from a rotating fan hub angled away from a direction of rotation to the fan diameter of the blower fan. ### Claim 5 (depends on 1) The dual opposite combined blower and impeller system of claim 1 wherein the plurality of blades may extend linearly from a rotating fan hub to the fan diameter of the blower fan. ### Claim 6 (depends on 1) The dual opposite combined blower and impeller system of claim 1 wherein the first notch is a curvilinear extension inward of the first side wall to pressurize air upon rotation of the blower fan in the dual opposite combined blower and impeller system housing along the first side wall. ### Claim 7 (depends on 1) The dual opposite combined blower and impeller system of claim 1 wherein the dual opposite combined blower and impeller system housing includes a plurality of fan inlet apertures. ### Claim 8 An information handling system comprising: a chassis with a central processor, a memory, and a power source; a dual opposite combined blower and impeller system for thermal management comprising: a powered blower fan for rotating a plurality of blades within a dual opposite combined blower and impeller system housing; the dual opposite combined blower and impeller system housing including first surface and a second surface oppositely disposed on either side of a rotational plane of the powered blower fan, wherein the first surface or second surface has a fan inlet aperture; the dual opposite combined blower and impeller system housing having a first side wall and second side wall oppositely disposed to the first side wall and disposed between the first surface and the second surface; a first notch of the first side wall extending internally along the first side of a diameter of the powered blower fan in the rotational plane; a first outlet aperture in the rotational plane of the blower fan moving air in a first direction to a cooling fin stack for directed cooling of the fin stack, pressurize an internal cavity of the chassis; and a second, curvilinear impeller aperture in the rotational plane of the blower fan moving air in a second direction spread airflow generally opposite to the first direction of the first outlet aperture, wherein the second, curvilinear impeller aperture curves around the diameter of the blower fan on the impeller side of the dual opposite combined blower and impeller system. ### Claim 9 (depends on 8) The system of claim 8, further comprising: the fin stack located at an exhaust vent of the information handling system chassis and thermally coupled to the central processor. ### Claim 10 (depends on 8) The system of claim 8, further comprising: wherein the second, curvilinear impeller aperture provides a spread airflow angle of at least 30 degrees from the blower fan into an internal cavity of the information handing system chassis. ### Claim 11 (depends on 8) The system of claim 8, wherein a diameter of the blower fan including the plurality of blades is greater than 75% of a width of the dual opposite combined blower and impeller system housing between the first side wall and the second side wall. ### Claim 12 (depends on 8) The system of claim 8, further comprising: a second dual opposite combined blower and impeller system for thermal management. ### Claim 13 (depends on 8) The system of claim 8, further comprising: the first surface of the dual opposite combined blower and impeller system housing operatively having the fan inlet aperture coupled to a chassis inlet vent such that the fan inlet aperture draws air from outside the information handling system chassis. ### Claim 14 (depends on 8) The system of claim 8, further comprising: seals along seams of the information handling systems chassis to prevent leakage of pressure from internal cavity of the chassis and direct airflow to at least one outlet vent of the chassis. ### Claim 15 (depends on 1) The system of claim 1 wherein the first notch is a curvilinear extension inside the dual opposite combined blower and impeller system housing to pressurize air upon rotation of the powered blower fan in the dual opposite combined blower and impeller system housing along the first side wall force air to exit the first outlet aperture. ### Claim 16 A method of assembling an information handling system with powered blower fan comprising: operatively coupling a central processor, a memory, and a power source in an information handling system chassis; thermally coupling the central processor and the graphics processor to a fin stack; orienting the fin stack at an exhaust vent of the information handling system chassis; installing a dual opposite combined blower and impeller system having a powered blower fan for rotating a plurality of blades within a dual opposite combined blower and impeller system housing where a first aperture on a blower side of the dual opposite blower and impeller system housing between a first side wall and a second side wall oppositely disposed to the first side wall is aligned to move air across the fin stack in a rotational plane of the powered blower fan and a second, curvilinear impeller aperture is oriented to spread airflow angle at least 30 degrees in an opposite direction in the rotational plane of the powered blower fan internally to the information handling system chassis; aligning a first surface of the dual opposite combined blower and impeller system housing having an inlet fan aperture over an inlet vent in the information handling system chassis to draw air from outside the information handling system chassis; and operatively coupling the power source to a motor of the powered blower fan mounted inside the dual opposite blower system housing. ### Claim 17 (depends on 16) The method of claim 16, further wherein the first side wall of the dual opposite combined blower and impeller system housing has a first notch extending internally along a fan diameter in the rotational plane of the powered blower fan to compress air moved by the powered blower fan out of the first aperture on the blower side. ### Claim 18 (depends on 16) The method of claim 16, further comprising: orienting a second cooling fin stack at a second exhaust vent of the information handling system chassis. ### Claim 19 (depends on 18) The method of claim 18, further comprising: operatively coupling the second cooling fin stack with a second dual opposite combined blower and impeller system at an outlet aperture and at the second exhaust vent of the information handling system chassis. ### Claim 20 (depends on 16) The method of claim 16 wherein the fan diameter including the plurality of blades of the powered blower fan is at least 85% the width of the dual opposite combined blower and impeller system housing between first side wall and the second side wall.