US2017328376A1PendingUtilityA1

Compressor including a sealing channel

Assignee: BOSCH GMBH ROBERTPriority: Dec 3, 2014Filed: Oct 8, 2015Published: Nov 16, 2017
Est. expiryDec 3, 2034(~8.3 yrs left)· nominal 20-yr term from priority
F04D 29/102F04D 29/286F04D 29/4206F04D 17/12F04D 1/06F04D 17/105F04D 29/162F04D 29/44F04D 29/26F04D 29/083
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Claims

Abstract

A compressor, which includes a housing and a rotor, in which the rotor includes a compressor wheel on at least one side, a compressor chamber being formed between the compressor wheel and the housing, the rotor being rotatably supported, an annular sealing channel being formed between the rotor and the housing, the sealing channel being routed from the compressor chamber to an area having a lower pressure, a connecting channel being routed from an area having a higher pressure to a first section of the sealing channel.

Claims

exact text as granted — not AI-modified
1 - 13 . (canceled) 
     
     
         14 . A compressor, comprising:
 a housing; and   a rotor having at least one compressor wheel on one side;   wherein a compressor chamber is formed between the compressor wheel and the housing, the rotor being rotatably supported, an annular sealing channel being formed between the rotor and the housing, the sealing channel being routed from the compressor chamber to an area having a lower pressure and a connecting channel being routed from an area having a higher pressure to a first section of the sealing channel.   
     
     
         15 . The compressor of  claim 14 , wherein the connecting channel is routed from the compressor chamber to a first section of the sealing channel. 
     
     
         16 . The compressor of  claim 14 , wherein the connecting channel is routed from a second section of the sealing channel to the first section of the sealing channel, the first section being situated downstream in the direction of a lower pressure area with respect to the second section. 
     
     
         17 . The compressor of  claim 14 , wherein the compressor wheel is formed on a first side of the rotor, another compressor wheel being formed on a second side of the rotor diametrically opposed to the first side, the additional compressor wheel representing a high pressure stage, and the compressor wheel representing a low pressure stage, the additional compressor wheel being situated in another compressor chamber of the housing, the sealing channel being formed between the compressor chamber and the additional compressor chamber and the connecting channel being routed from an area having a higher pressure to the first section of the sealing channel having a lower pressure. 
     
     
         18 . The compressor of  claim 14 , wherein the rotor is rotatably supported on the housing via a contact-free bearing, and the sealing channel is formed in the area of the bearing. 
     
     
         19 . The compressor of  claim 14 , wherein a sealing element is formed on the rotor and/or on the housing, the sealing element being formed from a softer material than the rotor or the housing, the sealing element representing at least one side of at least one section of the sealing channel. 
     
     
         20 . The compressor of  claim 19 , wherein the sealing element is formed on the housing, a radial recess being formed in the sealing element, a radial web being formed on the rotor, which engages with the recess, and at least one section of the sealing channel being formed between the sealing element and the rotor. 
     
     
         21 . The compressor of  claim 19 , wherein the sealing element is formed on the housing, a radial recess being formed on the rotor, the sealing element engaging with the recess with a radial end face, and at least one section of the sealing channel being formed between the sealing element and the rotor. 
     
     
         22 . The compressor of  claim 14 , wherein the connecting channel is formed in the housing. 
     
     
         23 . The compressor of  claim 19 , wherein the connecting channel is formed at least partially in the sealing element. 
     
     
         24 . The compressor of  claim 14 , wherein there are multiple connecting channels. 
     
     
         25 . The compressor of  claim 14 , wherein the connecting channel is formed in the rotor ( 3 ). 
     
     
         26 . The compressor of  claim 14 , wherein the compressor includes a turbo compressor.

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