Abstract:
A housing for retaining an electronic component, including a lid and a lower part made of synthetic material, wherein the lid is joined in a force-fit manner to the lower part by clamping geometry, and in order to affix the electronic component in position, the lid applies a specified force (F) to the electronic component after being joined to the lower part due to its design. Here, the lid is designed in such a manner that the force (F) applied lies within a specified force range (B), and that the clamping geometry comprises a groove on the lower part and a ridge on the lid which grips into the groove, wherein a clamp web on the lower part or on the lid is arranged in such a manner that the lid is removably clamped to the lower part after being joined to the lower part with a force (F) which acts parallel to the clamping force (KF).
Abstract:
A method is provided for producing a tight, form-fitting connection between a housing cover and a housing body, wherein the housing cover has cover tabs protruding from an edge thereof, and an edge area of the housing body has recesses for respectively receiving the cover tabs. The method involves positioning the housing cover on the housing body and deforming the cover tabs in the housing recesses to produce the tight, form-fitting connection in a single operation with a single tool.
Abstract:
A hydrostatic actuator, in particular, a hydrostatic clutch actuator, having a master cylinder including a housing and a piston that is axially displaceable in the housing and applies pressure to a pressure chamber, a gearing mechanism converting a rotary drive into an axial movement, and an electric motor driving the gearing mechanism to rotate and including a stator and a rotor, where the pressure chamber is arranged axially between the piston and the electric motor with respect to an axis of rotation of the electric motor.
Abstract:
A housing for retaining an electronic component, including a lid and a lower part made of synthetic material, wherein the lid is joined in a force-fit manner to the lower part by clamping geometry, and in order to affix the electronic component in position, the lid applies a specified force (F) to the electronic component after being joined to the lower part due to its design. Here, the lid is designed in such a manner that the force (F) applied lies within a specified force range (B), and that the clamping geometry comprises a groove on the lower part and a ridge on the lid which grips into the groove, wherein a clamp web on the lower part or on the lid is arranged in such a manner that the lid is removably clamped to the lower part after being joined to the lower part with a force (F) which acts parallel to the clamping force (KF).
Abstract:
The invention relates to an electric drive unit comprising an electronic control module and an electric motor. The cooling of the components of the electric drive unit should be effected in a simple manner. To this end, the hub of the impeller wheel, which is situated on the rotation axis of the electric motor and provided for producing a working air flow, has a two-walled design, whereby a hub inner space is formed between the outer wall and the inner wall of the hub of the impeller wheel. At least one cooling surface of the cooling body, said surface being in contact with components of the electronic control module, projects into the hub inner space. A gap communicating with the hub inner space, is formed between the hub of the impeller wheel and a carrier section which supports the electronic control module and the electric motor. In addition, through-holes communicating with the hub inner space are provided in at least one component of the electric drive unit. When the electric drive unit operates and the impeller wheel is in motion an air flow between the gap and the through-holes is established. The invention also relates to an electric drive unit with a fan motor.
Abstract:
The present invention relates to an actuator for electromagnetic valve control in which the yokes of the electromagnets have a slotted design by means of the yokes consisting of a plurality of solid parts joined to one another.
Abstract:
A method for controlling an internal combustion engine with the aid of an engine control unit, having actuators for the electromagnetic valve control, as well as additional actuators, wherein each cylinder head has a separate actuator control unit, which is connected via a data bus to the engine control unit.
Abstract:
A method of operating an actuator for electromagnetically controlling a valve in an internal combustion engine involves supplying a heating current to the operating coils of the actuator before starting the internal combustion engine from a cold start condition. Thereby, the operating coils, the components surrounding them, and the lubricant are heated to ensure proper viscosity of the lubricant and thus proper operation of the actuator.
Abstract:
An actuator for electromagnetically controlling a valve with a device comprising a magnetic field sensor and a magnetic field transmitter for determining the instantaneous position of a retaining plate, the magnetic field sensor and the magnetic field transmitter being surrounded by magnetic screening.
Abstract:
A hydrostatic actuator, in particular, a hydrostatic clutch actuator, having a master cylinder including a housing and a piston that is axially displaceable in the housing and applies pressure to a pressure chamber, a gearing mechanism converting a rotary drive into an axial movement, and an electric motor driving the gearing mechanism to rotate and including a stator and a rotor, where the pressure chamber is arranged axially between the piston and the electric motor with respect to an axis of rotation of the electric motor.