Robert Boschgmbh

Mercedes-benz Aktiengesellschaft

Hermann Stahl Gmbh

Erwin Wolf

Gerhard Kuhlmann

Siegfried Reichmann

Hermann Stahl

Gunter Wahl

Rolf-Wolfram Dahm

Hermann Vollmer

The invention relates to a fan wheel for a turbo charger. The fan wheel ( ) is comprised of a base body with a central axis of rotation ( ) wherein the base body is assembled of two cover discs ( ) positioned approximately congruently opposite one another, between whose end faces ( ) facing one another fan blades ( ) are arranged. The fan blades ( ) are formed as monolithic parts on at least one of the cover discs ( ) and have an axial contact surface ( ) against which an oppositely positioned axial contact surface ( ) of the other cover disc ( ) rests. Fastening means are provided in the area of the contact surfaces ( ) for non-detachably connecting the cover discs ( ) to one another. In order to produce the fan wheel ( ) without balancing, the cover discs ( ) are embossed from a material that can be embossed and the fan blades ( ) are embossed axially out of the material of a cover disc ( ), wherein the edge ( ) between the plane of the cover disc ( ) and the sidewall ( ) of a fan blade ( ) positioned substantially at a right angle to the plane of the cover disc ( ) as well as the edge ( ) between the sidewall ( ) of the contact surface ( ) are rounded with a radius (R , R ) of approximately 0.5 to 2 mm.

Fan wheel

The invention relates to a drive device for a motor vehicle door lock or the like, which comprises a motor or in particular an electromotor drive and a gear unit (,) with a drive end and an output end. In order to optimize mechanical back-up actuation in the case of power failure or voltage drop or other interruption of the motor, in particular electromotor drive, according to the invention, between the drive end and the output end of the gear unit (,), is fitted a coupling (,) that is variable in coupling degree, which has a high degree of coupling in the case of high rotational speed, and a low degree of coupling in the case of low rotational speed.

Drive device for a motor vehicle door lock or the like

A bucket tappet for an internal combustion engine with overhead camshaft comprises a hollow cylindrical tappet shank made of an aluminum material which is closed at one end by a baseplate made of a steel or hard metal material. A guide bush for accommodating a play-compensating element is arranged inside the tappet shank and is concentric to the longitudinal center axis. In order to obtain a permanent connection between the baseplate and the tappet shank, a steel material carrier element is embedded in the tappet shank and the baseplate is secured by soldering or welding to the carrier element.

Bucket tappet for an internal combustion engine with overhead camshaft

A guide device for hand-held machine tools includes a foot plate in which a guide rail, provided with a parallel guide, can be clamped. The foot plate has guide openings in its edge portions. The guide rail is insertable into these openings. The clamping device is displaceable on the guide rail and can be clamped to the latter. The clamping device includes a clamping element with an overhanging clamping projection, which is engageable with the edge portion of the foot plate, and a clamping bolt for clamping the clamping element to the guide rail. The clamping bolt can be moved out from the narrow space between the foot plate and the machine housing and can be easily accessible.

Guide device for hand-held machine tools

A saw table for a compass saw formed particularly as a hand-held power tool, has a table plate extending so that a compass saw is located under the table plate and a saw blade extends upwardly beyond the table plate and a protecting element associated with the table plate and arranged so that from a space above the table plate the protecting element overlaps the saw blade.

Saw table for a compass saw

A guiding arrangement for a hand saw includes a support located below the saw housing, a guiding strip adjustably connected to the support and a guiding rail secured to the guiding strip. The guiding rail extends normal to the guiding strip and serves as a guide for a saw when the blade of the latter makes straight parallel cuts. The guiding rail has at least one projection formed with two openings for selectively receiving a centering pin utilized in operation when the saw blade makes circular cuts.

Guiding arrangement for a hand tool

A switching device has a switch and an actuating member displaceable in switching on and switching off directions and tiltable in engaging and disengaging directions coordinated with one another so that when the actuating member moves in switching on direction and tilts in engaging direction it switches on the switch and is arrested, and when the actuating member moves in switching off direction and disengaging direction it is released and switches off the switch. The actuating member is tiltable about an axis located in a plane which extends between a point of connection with the spring and gripping surfaces provided on the actuating member.

Growing community of inventors

Weissach, Germany

Erwin Wolf