# US 12,180,854 B2 · Gas supply apparatus

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- Number: US 12,180,854 B2
- Document ID: US12180854B2
- Status: Granted
- Kind: B2
- Application number: 18/557,632
- Filed: 2022-04-08
- Published: 2024-07-04
- Granted: 2024-12-31
- Earliest claimed: 2021-04-28
- Assignees: Robert Bosch GmbH
- Applicants: Robert Bosch GmbH
- Inventors: Ingo Stotz; Yannick Fabian Frey
- Web page: https://patentgrep.com/patent/US12180854B2

## CPC

- F01D 25/125: {of bearings}
- F01D 25/166: {Sliding contact bearing (gas bearings F01D25/22)}
- F05D 2240/54: Radial bearings
- Y02E 60/50: Fuel cells
- F01D: NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES (machines or engines for liquids F03; non-positive displacement pumps F04D)
- F05D: INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

## Abstract

The invention relates to a gas supply apparatus (21) having a shaft (23) which is rotatably mounted in a housing (22) using a gas bearing assembly (18) that is temperature-controlled with dispensing gas, and comprising a gas temperature-control device. In order to improve the gas supply apparatus (21) in respect of its manufacturing process and/or its functions, the gas temperature-control device is combined with a liquid temperature-control device (40) in an annular space (33) of the gas supply apparatus (21).

## Claims

### Claim 1

A gas supply apparatus (21) having a shaft (23) rotatably mounted in a housing (22) using a gas bearing assembly (18) that is temperature-controlled with dispensing gas (43, 44), and comprising a gas temperature-control device (35), wherein the gas temperature-control device (35) is combined with a liquid temperature-control device (40) in an annular space (33) of the gas supply apparatus (21), wherein the gas temperature-control device (35) has a gas guiding geometry (36) comprising gas guiding bodies (37), such as ribs, lamellae, or fins, and wherein the gas guiding geometry (36) further comprises an axial web (39) fluidically separating a gas supply side (46) of the gas guiding geometry (36) from a gas discharge side (47) of the gas guiding geometry (36).

### Claim 2 (depends on 1)

The gas supply apparatus according to claim 1, wherein the gas temperature-control device (35) comprises a round-bent sheet metal component (38;54;56;58) with the gas guiding geometry (36).

### Claim 3 (depends on 2)

The gas supply apparatus according to claim 2, wherein the gas temperature-control device (35) comprises a sleeve-like base body (45).

### Claim 4 (depends on 3)

The gas supply apparatus according to claim 3, wherein the round-bent sheet metal component (38;54;56;58) is connected to the sleeve-like base body (45) in a material-locking manner.

### Claim 5 (depends on 3)

The gas supply apparatus according to claim 3, wherein the liquid temperature-control device (40) is arranged on an inner diameter (41) of the base body (45).

### Claim 6 (depends on 3)

The gas supply apparatus according to claim 3, wherein the liquid temperature-control device (50) is arranged on an outer diameter (42) of the gas temperature-control device (35).

### Claim 7 (depends on 1)

The gas supply apparatus according to claim 1, wherein the gas guiding geometry (36) comprises flow channels (48) in which the dispensing gas (43, 44) is deflected between the gas supply side (46) and the gas discharge side (47).

### Claim 8 (depends on 1)

The gas supply apparatus according to claim 1, wherein the gas temperature-control device (35) is combined with the liquid temperature-control device (40) in the annular space (33) within the housing of the gas supply apparatus (21).

### Claim 9

A gas supply apparatus (21) having a shaft (23) rotatably mounted in a housing (22) using a gas bearing assembly (18) that is temperature-controlled with dispensing gas (43, 44), and comprising a gas temperature-control device (35), wherein the gas temperature-control device (35) is combined with a liquid temperature-control device (40) in an annular space (33) of the gas supply apparatus (21), wherein the gas temperature-control device (35) comprises a sleeve-like base body (45), and wherein the liquid temperature-control device (40) is arranged on an inner diameter (41) of the base body (45).