A pPTC heating device having areas with different power densities distributed over the surface of the device. The device is constructed using a base layer composed of a pPTC material having a layer of sectioned conductive plates disposed over and under the layer of pPTC such as to control the path of the current through the device, thereby controlling resistance of the device and the power density of the device.

An electric heating device comprises a housing having a partition wall, which separates a connection chamber from a heating chamber for dissipating heat and from which PTC heating devices protrude as heating ribs in the direction toward the heating chamber. Each PTC heating device comprises at least one PTC element and conductor tracks that are electrically connected in the connection chamber for energizing the PTC element with different polarities and that are connected to the PTC element in an electrically conductive manner. The heating chamber, in a top view onto the partition wall, has a substantially rectangular base area. The PTC heating devices are arranged obliquely relative to the base area for a more compact configuration of the electric heating device.

A heater element for heating a vehicle interior includes: a honeycomb structure comprising: an outer peripheral wall; and a partition wall disposed on an inner side of the outer peripheral wall, the partition wall defining a plurality of cells each forming a flow path from a first end face to a second end face, the outer peripheral wall and the partition wall comprising a material having a PTC property; and a pair of electrodes provided on the first end face and the second end face. Each of the first end face and the second end face of the honeycomb structure is rectangular. The heater element for heating the vehicle interior further includes a pair of connectors, each of the connectors being connected to the electrode from one short side of each of the first end face and the second end face.

A vehicle system having an internal combustion engine and evaporative emission system including a canister is described, wherein canister includes a chamber having a flexible Metal Organic Framework (MOF) material disposed therein. A controllable device is coupled to the flexible MOF material, and a controller is operatively connected to the controllable device and the purge valve. The controller includes an instruction set that is executable to activate the controllable device and control the purge valve to an open state in response to a command to purge the canister, determine an activation parameter for the controllable device, determine a purge flow, integrate the purge flow to determine a total purge mass, and deactivate the controllable device when the total purge mass is greater than a threshold.

A heater of the present invention includes jointed heat generating resistors having a positive temperature characteristic of resistance and provided between a first conductive element and a second conductive element on a substrate in a longitudinal direction of the substrate, and a plurality of heating blocks provided in the longitudinal direction, each of which is a set of the first conductive element, the second conductive element, and the heat generating resistor, and power supplied to at least one of the plurality of heating blocks can be controlled independent of other heating blocks.

A heated floor panel assembly for aircraft includes an impact layer made from a 2-D or 3-D woven high temperature thermoplastic fiber matrix impregnated with a resin. The impact layer can further include woven metallic fibers. The assembly also includes a stack of structural layers, a heating layer, and a core layer for absorbing shear stress.

An electric heater (1) comprising:—at least one armored tubular cartridge (2) comprising at least one PTC resistor (3) therein; —a block of aluminum (4), or alloys thereof, overmolded by die-casting around said at least one armored tubular cartridge (2); wherein a coating layer in plastic material (5) is provided, applied around said block of aluminum (4).

A planar heating element comprising a PTC resistive structure, which is arranged in a defined surface region of a first surface of a support substrate. The electrical connection contacts for connection to an electrical voltage source are associated with the PTC resistive structure, wherein the PTC resistive structure—starting from the two electrical connection contacts—has at least one internal conductive trace and a parallel connected, external conductive trace. The internal conductive trace has a greater resistance than the external conductive trace and the resistances of the internal conductive trace and external conductive trace are so sized that upon applying a voltage an essentially uniform temperature distribution is present within the defined surface region.

The invention relates to a supply module (10) for conveying an operating/auxiliary agent capable of freezing for the exhaust gas aftertreatment of an internal combustion engine and for heating a reservoir holding the operating/auxiliary agent capable of freezing. The supply module (10) comprises a main heater (18) and an auxiliary heater (30), which are electrically contacted on a supporting body (24). A pot wall (52) of a heating pot (50) comprises electrical contacts (62) of the main heater (18) and electrical contacts (60) of the auxiliary heater (30).

A heated floor panel assembly for aircraft includes an impact layer made from a 2-D or 3-D woven high temperature thermoplastic fiber matrix impregnated with a resin. The impact layer can further include woven metallic fibers. The assembly also includes a stack of structural layers, a heating layer, and a core layer for absorbing shear stress.