Abstract: In one embodiment a hinge assembly comprises a first hinge pin rotatable about a first axis, a first gear coupled to the first hinge pin and rotatable about the first axis, a second hinge pin rotatable about a second axis substantially parallel to the first axis, a second gear coupled to the second hinge pin and rotatable about the second axis, at least one connecting member to be coupled to the first hinge pin and the second hinge pin to hold the first hinge pin at a fixed distance from the second hinge pin such that the first gear is engaged with the second gear. At least one of the first gear or the second gear comprises a variable radius. Other embodiments may be described.

Abstract: Embodiments of an apparatus, system, method and techniques are described for an improved volumetric resistance blower and rotor. An apparatus may comprise, for example a motor, a casing having one or more inlets and one or more outlets, and a cylindrical rotor to create a volumetric resistance inside the casing, at least a portion of the rotor comprising a porous material. Other embodiments are described.

Abstract: In one embodiment a blower comprises a case comprising a first surface, a second surface opposite the first surface, and a side wall extending between portions of the first surface and the second surface, wherein the side wall comprises an air inlet and an air outlet, an impeller disposed in the case and rotatable about an axis of rotation extending through a hub, wherein the impeller comprises a plurality of blades which define a gap with the hub, wherein portions of the side wall are disposed at least a first distance from the axis of rotation and the impeller is to define a circumferential airflow path within the case, wherein the impeller is to create an airflow in the circumferential airflow path between the air inlet and the air outlet, and a feature disposed in the gap to impede recirculation of air in the case.

Abstract: In one embodiment a housing for an electronic device comprises a first section, a second section, and a collapsible chimney coupled to the first section and the second section to provide an airflow path from a portion of the first section. Other embodiments may be described.

Abstract: An electronic device is provided that includes a base having a first side and a second side, and a lid having a first side and a second side. The electronic device may also include a heat exchanger provided at the base. The heat exchanger may have a first surface exposed to outside the base.

Abstract: In one embodiment a blower comprises a case comprising a first surface, a second surface opposite the first surface, and a side wall extending between portions of the first surface and the second surface, wherein the side wall comprises an air inlet and an air outlet, an impeller disposed in the case and rotatable about an axis of rotation extending between the first surface and the second surface. Portions of the side wall are disposed at least a first distance from the axis of rotation and the impeller is to define a circumferential airflow path within the case, and the impeller is to create an airflow in the circumferential airflow path between the air inlet and the air outlet.