Compressor assembly having a magnetic coupling

Abstract

A compressor assembly (10) for supplying pressure medium to a tire cavity (7) of a tire of a vehicle wheel, which can be mounted on a wheel hub (4) that is mounted on a wheel carrier (3) for rotation about an axis of rotation (32). The compressor assembly (10) includes a hub-side compression chamber (16) and a compressor component (18). A pressure medium is conducted into the tire cavity (7) upon being pressurized in the compression chamber (16) by oscillating translational motion of the compressor component (18). The compressor assembly (10) includes a transmission (20) that converts a rotational motion between the wheel carrier side and the wheel hub side into an oscillating translational motion of the compressor component (18) when a hub-side transmission part (24) is in an operating position with a wheel-carrier-side transmission part (26).

What is claimed is: 
     
         1 . A compressor assembly ( 10 ) for supplying pressure medium to a tire cavity ( 7 ) of a tire of a vehicle wheel, the vehicle wheel configured to be mounted on a wheel hub ( 4 ), which is mounted on a wheel carrier ( 3 ) for rotation about an axis of rotation ( 32 ), the compressor assembly ( 10 ) comprising:
 a compression chamber ( 16 ) in combination with a dual piston ( 18 ), wherein a pressure medium to be conducted into the tire cavity ( 7 ) is pressurized in the compression chamber ( 16 ) by oscillating translational movement of the dual piston ( 18 ); and   a transmission ( 20 ) configured to convert a rotational motion into an oscillating translational motion of the dual piston ( 18 ).   
     
     
         2 . The compressor assembly ( 10 ) according to  claim 1 , wherein the dual piston comprises two valves arranged on the dual piston ( 18 ) or on the compression chamber ( 16 ), wherein a first valve of the two valves is arranged on or adjacent a first end of the dual piston ( 18 ) and a second valve of the two valves is arranged on or adjacent an opposite second end of the dual piston ( 18 ), 
     
     
         3 . The compressor assembly ( 10 ) according to  claim 2 , wherein each of the two valves comprises a flutter valve ( 64 ) arranged on the dual piston ( 18 ) or on the compression chamber ( 16 ) such that the flutter valve is configured to open in an intake stroke of the dual piston ( 18 ) and close in a delivery stroke of the dual piston ( 18 ). 
     
     
         4 . The compressor assembly ( 10 ) according to  claim 1 , further comprising a flutter valve ( 64 ) arranged on the dual piston ( 18 ) or on the compression chamber ( 16 ) such that the flutter valve is configured to open in an intake stroke of the dual piston ( 18 ) and close in a delivery stroke of the dual piston ( 18 ). 
     
     
         5 . The compressor assembly ( 10 ) according to  claim 4 , further comprising a flutter valve ( 64 ) disposed in combination with each of opposing ends of the dual piston ( 18 ), such that a first flutter valve is configured to open in an intake stroke of the dual piston ( 18 ) and a second flutter valve is configured to close in the intake stroke of the dual piston ( 18 ). 
     
     
         6 . The compressor assembly ( 10 ) according to  claim 1 , wherein the dual piston ( 18 ) comprises either a permanent magnet ( 102 ) or a ferromagnetic material arranged in the dual piston ( 18 ), and at least one permanent magnet ( 100 ) arranged in a circumferential wall of the compression chamber ( 16 ). 
     
     
         7 . The compressor assembly ( 10 ) according to  claim 1 , wherein the transmission ( 20 ) is configured to convert the rotational motion between a wheel carrier side and a wheel hub side into the oscillating translational motion of the dual piston ( 18 ) when a hub-side transmission part ( 24 ) is in an operating position with a wheel carrier side transmission part ( 26 ). 
     
     
         8 . The compressor assembly ( 10 ) according to  claim 1 , wherein the compression chamber ( 16 ) includes a pressure medium outlet ( 76 ) connected to a dead space volume ( 120 ) of the compression chamber ( 16 ), wherein the pressure medium outlet is connected to the tire cavity ( 7 ) via a line section ( 78 ), and wherein the line section ( 78 ) is connected to a relief valve ( 82 ), via which the line section ( 78 ) can be relieved from pressure. 
     
     
         9 . The compressor assembly ( 10 ) according to  claim 1 , further comprising a pressure chamber ( 25 ) with a pressure medium inlet ( 72 ), wherein the dual piston ( 18 ) forms a part of a limitation of the pressure chamber such that the dual piston ( 18 ) is moved by supplying a pressure surge to the pressure chamber ( 25 ). 
     
     
         10 . The compressor assembly ( 10 ) according to  claim 9 , wherein the pressure chamber ( 25 ) is the compression chamber ( 16 ). 
     
     
         11 . The compressor assembly ( 10 ) according to  claim 9 , wherein the pressure chamber ( 25 ) is configured pneumatically separate from the compression chamber ( 16 ). 
     
     
         12 . The compressor assembly ( 10 ) according to  claim 9 , further comprising a guide element ( 110 ) that extends into the dual piston ( 18 ), wherein the pressure medium inlet ( 72 ) is arranged on the guide element ( 110 ). 
     
     
         13 . The compressor assembly ( 10 ) according to  claim 12 , wherein a line section ( 112 ) runs in the guide element ( 110 ), which flows into the pressure medium inlet ( 72 ). 
     
     
         14 . The compressor assembly ( 10 ) according to  claim 1 , further comprising a magnet based coupling and/or decoupling device configured to bring the first transmission part ( 24 ) into or out of an operating position with a second transmission part ( 26 ). 
     
     
         15 . The compressor assembly ( 10 ) according to  claim 1 , further comprising a decoupling device ( 39 ) and/or a coupling device ( 41 ) configured and arranged to hold and/or to move the dual piston ( 18 ) via magnetic force such that a position of the transmission ( 20 ) is influenced as a result. 
     
     
         16 . The compressor assembly ( 10 ) according to  claim 1 , further comprising
 a translator ( 130 ) of a generator assembly ( 140 ), wherein the generator assembly ( 140 ) generates electrical energy by oscillating translational movement of the translator ( 130 ), and   a generator transmission ( 135 ) configured to convert a rotational motion between a wheel carrier side and a wheel hub side into an oscillating translational movement of the translator ( 130 ) when a wheel carrier side generator transmission part ( 137 ) is in an operating position with a hub-side generator transmission part ( 139 ), wherein the generator transmission ( 135 ) can be actuated independently from the transmission ( 20 ).   
     
     
         17 . The compressor assembly ( 10 ) according to  claim 1 , wherein the dual piston ( 18 ) comprises a plate-like form including an underside that forms a transmission part ( 24 ) of the transmission ( 20 ). 
     
     
         18 . The compressor assembly ( 10 ) according to  claim 1 , wherein the dual piston ( 18 ) is configured as being connected in one piece to a transmission part ( 24 ) of the transmission ( 20 ). 
     
     
         19 . The compressor assembly ( 10 ) according to  claim 1 , wherein the dual piston ( 18 ) is configured and arranged to deliver pressure medium during operation of the compressor assembly ( 10 ) by a radially inward movement and a radially outward movement. 
     
     
         20 . The compressor assembly ( 10 ) according to  claim 1 , wherein the transmission ( 20 ) comprises a first transmission part ( 26 ) embodied as a disk groove curve ( 44 ), with a switch point section ( 46 ) and with a working path ( 48 ) and a freewheel path ( 50 ), which are connected via the switch point section ( 46 ), and the dual piston ( 18 ) comprises an underside that forms a second transmission part ( 24 ) of the transmission ( 20 ).