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Linear actuator, in particular for adjusting the flaps in motor vehicle turbochargers

A servo drive, linear motion technology, applied in electromechanical devices, machines/engines, mechanical equipment, etc., can solve problems such as hindering the economical utilization of toothed magnetic pole motors under high power

Inactive Publication Date: 2014-11-05
SCHAEFFLER TECH AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Cooling issues hamper economical use of toothed pole motors at high power

Method used

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  • Linear actuator, in particular for adjusting the flaps in motor vehicle turbochargers
  • Linear actuator, in particular for adjusting the flaps in motor vehicle turbochargers
  • Linear actuator, in particular for adjusting the flaps in motor vehicle turbochargers

Examples

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Embodiment Construction

[0030] figure 1 A first embodiment of the linear actuating drive according to the invention is shown in longitudinal section. The linear actuating drive according to the invention comprises a pot-shaped housing formed from a first housing pot part 01 and a second housing pot part 02 . At its open end, the second housing pot 02 has an extension 03 within which the open end of the first housing pot 01 is arranged. For sealing, an O-ring 04 arranged on the first housing pot 01 is used. The first housing pot 01 has a holder 05 for fastening at a connection component. A plug 06 for power supply and signal transmission is arranged on the second housing pot 02 . In modified embodiments, the two housing pots can be connected to each other in different ways. Likewise, the position of the plug is variable.

[0031] Arranged inside the housing is a spindle 07 , one end of which protrudes from the first housing pot 01 . The spindle end can be connected to an element (not shown) to b...

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Abstract

A linear actuator, in particular for adjusting the flaps in motor vehicle turbochargers. The linear actuator has an adjusting element that can be linearly displaced by an electric motor. The electric motor is a two-phase transverse flux machine. A rotor is arranged between two opposite single-phase stators, and the rotor is connected in a rotationally fixed manner to a rotatable and linearly stationary rotational element that engages with the linearly movable adjusting element in order to cause a linear movement of the adjusting element when the rotational element is rotated.

Description

technical field [0001] The invention relates to a linear servo drive, in particular for adjusting flaps in a motor vehicle turbocharger, with an adjusting element, preferably a spindle, which can be moved linearly by an electric motor. Background technique [0002] Turbochargers are used to increase the power of an internal combustion engine by precompressing the air flowing into the internal combustion engine. This precompression makes possible an increase in the combustion chamber filling of the internal combustion engine for a given combustion chamber volume. Since the maximum power is limited by the combustion chamber fill, the achievable torque and power increase with increasing combustion chamber fill. In turbochargers, the energy necessary for precompression of the air on the intake side of the internal combustion engine is extracted from the internal and kinetic energy of the exhaust gas. The exhaust gases drive the turbine, which drives the compressor via a shaft....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K7/06
CPCF05B2220/40H02K7/06F02B37/186
Inventor 沃尔夫冈·希尔
Owner SCHAEFFLER TECH AG & CO KG
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