Stuttgart, Germany
Stuttgart, Germany

Mahle GmbH is an automotive parts manufacturer based in Stuttgart, Germany. It is one of the 30 largest automotive suppliers worldwide. As a manufacturer of components and systems for the combustion engine and its periphery, the company is one of the three largest systems suppliers worldwide for piston systems, cylinder components, valve train systems, air management systems, and liquid management systems.As of 2014, its 65,000 employees work in 120+ production plants and six research and development centers in Stuttgart, Northampton, Detroit, Tokyo, Shanghai and São Paulo. Worldwide, 3000 development engineers and technicians work as partners for Mahle's customers on products and systems focused on the development of the combustion engine. Wikipedia.

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Patent
Mahle GmbH | Date: 2017-04-12

Disclosed is a heat exchanger (3), especially an exhaust gas cooler, comprising a housing (3) with an opening (4) into which a heat exchanger block formed by heat exchanger tubes (5) is inserted, and comprising a base (11) in which ends of the heat exchanger tubes (5) are fluid-tightly accommodated; a flange (1) which surrounds the opening (4) and on which the base (11) comes to rest is formed on the housing (2).


Patent
Mahle GmbH | Date: 2017-01-04

The invention relates to a method for producing a support basket (2) for an annular filter element (3), wherein: an inner structure (27) made of at least one wire (17) is placed on a matrix (4) of a welding device (1); an outer structure (28) made of at least one wire (12) is placed on the inner structure (27); the outer structure (28) and the inner structure (27) are welded together at contact points (16), where the outer structure (28) touches the inner structure (27), by means of a welding tool (6) of the welding device (1), and the inner structure (27) is wound onto the matrix (4) and/or the outer structure (28) is wound onto the inner structure (27).


Patent
Mahle GmbH | Date: 2017-04-05

The invention concerns a condenser arrangement (1) for an air conditioning system, with at least one pipe wall (3) made of metal, more particularly aluminium, and with a protective layer (5) that is provided on the pipe wall (3) and contains 40-90 mass % zinc oxide (ZnO).


Patent
Mahle GmbH | Date: 2017-01-11

The invention relates to a cooling apparatus for a first heat source and a second heat source, comprising a radiator and at least one first coolant pump, a coolant line interconnection being provided between the first heat source, the second heat source and the radiator, a thermostat arrangement with at least two thermostatic valves being provided in the coolant line interconnection to achieve a graded temperature distribution of the coolant.


The present invention relates to a method for producing a piston (10, 110) for an internal combustion engine having at least two piston components (11, 18; 111, 118), wherein at least two piston components (11, 18; 111, 118) are connected to each other along their corresponding abutting surfaces (23a, 24a, 23b, 24b) by at least one radially or axially circumferential laser weld seam (21, 22; 121, 122), said method having the following method steps: a) aligning the at least two piston components (11, 18; 111, 118) along their corresponding abutting surfaces (23a, 24a, 23b, 24b); b) activating a laser (25, 27) designed for a deep-welding method and aligning the laser beam (26, 28) emitted by the laser (25, 27) with a defined starting point (SP) in the region of the corresponding abutting surfaces (23a, 24a, 23b, 24b); c) increasing the power density (ramp-up) of the laser beam (26, 28) starting at the defined starting point (SP) for a defined length (S1) along the corresponding abutting surfaces (23a, 24a, 23b, 24b) to produce a ramp-up welding seam (31) with increasing welding seam depth; d) peripheral, complete welding along the corresponding abutting surfaces (23a, 24a, 23b, 24b) by means of deep welding to produce a deep welding seam (32) having a substantially constant welding seam depth up to the defined end point (EP); e) reducing the power density (ramping down) of the laser beam (26, 28) for a defined length (S2) to produce a ramp-down welding seam (33) with decreasing welding seam depth; f) welding at least a portion of the defined length (S1, S2) by means of heat conduction welding using a laser designed for a heat conduction welding method such that at least one heat conduction welding seam (34) is produced.


Patent
Mahle GmbH | Date: 2017-03-08

The invention relates to a metal-air battery (1), comprising a housing (2), a hollow cylindrical cathode (7), which is arranged between an air chamber (9) and an electrolyte chamber (10) in the housing (2), a metal anode (11), which is arranged in the electrolyte chamber (10), an air path (14) leading through the housing (2), which air path leads from an air inlet (15) of the housing (2) to an air outlet (16) of the housing (2), an air supply device (20) for producing an air flow, which follows the air path (14) and impinges on the cathode (7), an electrolyte path (17) leading through the housing (2), which electrolyte path leads from an electrolyte inlet (18) of the housing (2), said electrolyte inlet being fluidically connected to the electrolyte chamber (10), to an electrolyte outlet (19) of the housing (2), said electrolyte outlet being fluidically connected to the electrolyte chamber (10), and an electrolyte supply device (21) for producing an electrolyte flow, which follows the electrolyte path (17) and impinges on the anode (11) and the cathode (7).


Patent
Mahle GmbH | Date: 2017-03-22

The present invention relates to a starter (1) for an internal combustion engine (2), comprising a support (4), an electric motor (5) which is arranged on the support (4) and which serves for driving a pinion (7) in rotation, and a solenoid drive (6) which is arranged on the support (4) and which serves for the axial adjustment of the pinion (7) between active position (AS), which is provided for the drive of a gearwheel (3) of the internal combustion engine (2), and a passive position (PS), which is axially offset with respect to the active position (AS), wherein the solenoid drive (6) has a plunger stop (20) which is static with respect to the support (4), a plunger (21) which is axially adjustable relative to the plunger stop (20), and a cylindrical coil arrangement (22) which is arranged on the plunger stop (20) and which surrounds a cylindrical coil interior (25) of the coil arrangement (22) in a circumferential direction, and wherein the plunger stop (20) has a cylindrical section (27) which projects axially into the coil interior (25). Reduced wear of the pinion (7) and/or the gearwheel (3) can be realized by extending the cylindrical section (27) into the coil interior (25) such that a face end (33) of the cylindrical section (27) is close to and facing a face side wall (30) of a solenoid housing (19).


The invention relates to a coil former (2) for an electrical coil (1),- comprising a substantially cylindrical basic body (3) having a circumferential wall (4), which basic body is delimited along its axial direction (A) by a first end wall (5a) and a second end wall (5b), which is opposite the first end wall (5a), said end walls both protruding radially beyond the circumferential wall (4),- comprising a separating element (6), which is arranged axially between the two end walls (5a, 5b) and which projects radially outwards from the circumferential wall (4) so as to form a first and a second axial winding-accommodating region (9a, 9b),- wherein the separating element (6) has an aperture (17), through which the first axial winding-accommodating region (9a) is connected to the second axial winding-accommodating region (9b).


HVAC module (200) has an air inlet (201), an evaporator (204) downstream of the blower and a heater (206) downstream of the evaporator (204), and a rear mixing zone (216) downstream of the evaporator (204) and the heater (206), wherein a control valve (290) prevents cold air from flowing back towards the hot air by regulating the pressure of the cold air. A method is devised to control anti-backflow control valve (290) of such an HVAC module (200) by the steps of reading pressure and temperatures at various points in the HVAC module (200); setting air flow and temperature discharge targets; calculating the resistance of the control valve (290) and a blend valve (224b); determining corresponding control valve (290) and blend valve (224b) positions; and moving the control valve (290) and blend valve (224b) to those corresponding positions.


HVAC unit has a single blower fan (60), an evaporator (18) downstream of the blower (60) and a heater (20) downstream of the evaporator (18), wherein each zone outlet (28, 30, 32, 34, 36) includes a temperature mixing door (48, 50; 62) for controlling portions of hot and cold air and an output valve (39, 41, 52; 64) for controlling a zonal output flow rate. A method is devised to control the discharge of temperature-conditioned air from a plurality of zone outlets (28, 30, 32, 34, 36) of an automotive HVAC system via such an HVAC unit by the steps of reading an operator-requested zonal discharge blower level for each of the zone outlets (28, 30, 32, 34, 36); converting each zonal discharge blower level request to a zonal flowrate request; calculating a total requested output flowrate as a summation of all zonal flowrate requests; and adjusting a blower (60) voltage to a minimum voltage required for generating the total requested output flowrate.

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