Gas distribution assemblies and process chambers comprising gas distribution assemblies are described. The gas distribution assembly includes a gas distribution plate, a lid and a primary O-ring. The primary O-ring is positioned between a purge channel of a first contact surface of the gas distribution plate and a second contact surface. Methods of sealing a process chamber using the disclosed gas distribution assemblies are also described.

An atomizing element for an electronic cigarette is provide, which includes: a porous body comprising an atomizing surface and a liquid absorbing surface; and a porous heating film formed on the atomizing surface. An electronic cigarette and an atomizing assembly including the same are also provided.

An atomizing element for an electronic cigarette is provide, which includes: a porous body comprising an atomizing surface and a liquid absorbing surface; and a porous heating film formed on the atomizing surface. An electronic cigarette and an atomizing assembly including the same are also provided.

A pump comprises: at least one rotor rotatable about an axis of rotation; a pump housing surrounding the rotor, wherein a pump channel is formed between a radially inner surface of the pump housing and a radially outer surface of the rotor; and a seal assembly that seals the pump channel to an end surface of the rotor. The seal assembly comprises: a sliding surface which is provided on one of the rotor and the pump housing and which extends perpendicular to the axial direction of the rotor; a static surface provided on the other of the rotor and the pump housing; and a first elastomer element attached to the static surface and pressed against the sliding surface in the axial direction.

A seal plate (201) for maintaining a continuous aerodynamic surface between a fixed part (302) of an aerostructure such as an aerofoil (103) and a movable surface such as a spoiler (304) is provided. The seal plate (201) includes a resilient material such as fiberglass and has an aerodynamic surface (203). It is configured to be mounted to the fixed part (302) of the aerofoil along one edge (205) and to slidably seal with the control surface (304) at a second edge (207). The seal plate (201) is stepped and has a rigid lever (217) to engage behind the control surface (304) to bend the seal plate precisely according to movement of the control surface (304) and maintain the continuous aerodynamic surface.

An aerosol generation device includes a case into which a cigarette is to be inserted; a protrusion pipe of a hollow shape protruding from one end portion of the case and having an opening; a heater installed in the case such that an end portion thereof is positioned inside the protrusion pipe, and configured to generate heat when an electric signal is applied thereto; and a heater fixing portion installed inside the protrusion pipe to support the heater and comprising a round surface that extends from an inner side surface of the protrusion pipe.

An aerosol generation device may include a first housing comprising an opening at one side, an inner space for accommodating a cigarette inserted through the opening, and a heater disposed in the inner space; a second housing coupled to other side of the first housing and including a controller; a fastening portion configured to couple the first housing to the second housing; a battery coupled to the second housing; and a case coupled to the second housing for accommodating the second housing, the fastening portion, and the battery therein, wherein the fastening portion is prevented, by the case, from being exposed to outside.

The disclosure provides a mechanism for sealing cylinder and cylinder head, comprising a gas outlet portion of the cylinder, the cylinder head and a seal structure; wherein the gas outlet portion is provided with an outlet and a position-retaining protruding edge surrounding an outside of the outlet; the seal structure comprises a first sealing ring arranged inward of the position-retaining protruding edge and comprises a heat insulating sheet, wherein the heat insulating sheet covers the first sealing ring to seal the outlet; the cylinder head covers the gas outlet portion, and a movable member and an elastic member configured to tightly press the movable member against the heat insulating sheet are arranged inside the cylinder head.

An insert for an engine block and systems, assemblies, components, and methods thereof can comprise a ring-shaped body having an inner surface and an outer surface opposite the inner surface. The inner surface can having one or more sealing grooves adapted to receive and retain respective sealing rings. A maximum outer diameter of the ring-shaped body can be defined by the outer surface and can be greater than a height of the ring-shaped body in a longitudinal direction of the ring-shaped body.

A seal arrangement for a fluid valve has: a first sealing element configured to bear sealingly against a valve housing of the fluid valve; a second sealing element configured to bear sealingly against an adjustable, rotatable, valve body of the fluid valve; and an elastically deformable intermediate piece arranged, axially, between a first wall of the first sealing element, which faces the second sealing element, and a second wall of the second sealing element, which faces the first sealing element, so as to elastically space apart the first and second sealing elements. In at least one axial portion of the intermediate piece, an axial cross section of the intermediate piece has a first radial lateral surface and an opposite second radial lateral surface. The first radial lateral surface is convex and the second radial lateral surface is concave, planar or less convex than the first radial lateral surface.