# US 2022/0307397 A1 · Internal combustion engine and method of operating same

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- Number: US 2022/0307397 A1
- Document ID: US20220307397A1
- Status: Published application
- Kind: A1
- Application number: 17/617,297
- Filed: 2019-06-07
- Published: 2022-09-29
- Earliest claimed: 2019-06-07
- Assignees: Innio Jenbacher GmbH & Co OG
- Applicants: INNIO Jenbacher GmbH & Co OG
- Inventors: Gunther Wall; Jakub Holecek; Susanne Chvatal
- Web page: https://patentgrep.com/patent/US20220307397A1

## CPC

- F01M 11/04: Filling or draining lubricant of or from machines or engines
- F01M 11/0458: {Lubricant filling and draining}
- F01M 11/0004: {Oilsumps}
- F01M 13/04: having means for purifying air before leaving crankcase, e.g. removing oil
- F01M 2011/021: {for lubricating auxiliaries, e.g. pumps or turbo chargers}
- F01M 2011/0466: {Filling or draining during running}
- F01M 2013/0438: {with a filter}
- F01M: LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING

## Abstract

An internal combustion engine having an oil circuit, wherein the oil circuit is designed to supply at least one component of the internal combustion engine with lubricating oil, and at least one oil reservoir for providing the lubricating oil for the oil circuit, wherein there is provided at least one collecting container separate from the at least one oil reservoir, wherein lubricating oil in the oil circuit downstream of the at least one component can be collected in the at least one collecting container, and there is provided at least one removal device, by means of which at least a part of the lubricating oil collected in the at least one collecting container is removable from the at least one oil circuit.

## Claims

### Claim 1

An internal combustion engine comprising:
an oil circuit configured to supply at least one component of the internal combustion engine with lubricating oil;
at least one oil reservoir configured to provide the lubricating oil for the oil circuit, wherein the at least one component includes at least one turbocharger and/or a blow-by filter;
at least one collecting container separate from the at least one oil reservoir, wherein the at least one collecting container is configured to collect the lubricating oil in the oil circuit downstream of the at least one component; and
at least one oil remover configured to remove at least a part of the lubricating oil collected in the at least one collecting container from the at least one oil circuit.

### Claim 2 (depends on 1)

The internal combustion engine of claim 1, comprising at least one return line configured to return at least a part of the lubricating oil collected in the at least one collecting chamber into the at least one oil reservoir.

### Claim 3 (depends on 1)

The internal combustion engine of claim 1, wherein the at least one oil reservoir comprises an oil pan or an oil sump of the internal combustion engine.

### Claim 4 (depends on 1)

The internal combustion engine of claim 1, wherein the at least one component includes the at least one turbocharger.

### Claim 5 (depends on 1)

The internal combustion engine of claim 1, wherein the at least one component includes the blow-by filter.

### Claim 6 (depends on 1)

The internal combustion engine of claim 1, wherein the at least one oil remover has at least one removal line, at least one pump, at least one open-loop or closed-loop controllable valve, and/or at least one old oil tank.

### Claim 7 (depends on 1)

The internal combustion engine of claim 1, comprising at least one oil supply configured to supply additional fresh lubricating oil to the oil circuit via the at least one oil reservoir.

### Claim 8 (depends on 7)

The internal combustion engine of claim 7, wherein the at least one oil supply has at least one feed line, at least one pump, at least one open-loop or closed-loop controllable valve, and/or at least one fresh oil tank.

### Claim 9 (depends on 7)

The internal combustion engine of claim 7, comprising an open-loop or closed-loop controller connected in signal-conducting relationship to the at least one oil supply and configured to feed a defined volume of oil to the oil circuit by open-loop or closed-loop control of the at least one oil supply.

### Claim 10 (depends on 1)

The internal combustion engine of claim 1, comprising an open-loop or closed-loop controller connected in signal-conducting relationship to the at least one oil remover and configured to remove a defined volume of oil from the at least one collecting container by open-loop or closed-loop control of the at least one oil remover.

### Claim 11 (depends on 7)

The internal combustion engine of claim 7, comprising an open-loop or closed-loop controller configured to maintain constant a total volume of oil of the oil circuit by open-loop or closed-loop control of the at least one oil supply and/or the at least one oil remover.

### Claim 12 (depends on 1)

The internal combustion engine of claim 1, wherein the at least one collecting container and at least one crankcase are connected together above a liquid level so that gases can circulate between the at least one collecting container and the crankcase.

### Claim 13

A method of operating an internal combustion engine, comprising:
flowing a lubricating oil in an oil circuit to lubricate and/or cool at least one component of the internal combustion engine, wherein the lubricating oil is provided for the oil circuit by at least one oil reservoir, wherein the at least one component includes at least one turbocharger and/or a blow-by filter;
collecting the lubricating oil in the oil circuit downstream of the at least one component is collected in a collecting container separate from the at least one oil reservoir; and
removing at least a part of the lubricating oil collected in the at least one collecting container by an oil remover.

### Claim 14 (depends on 13)

The method of claim 13, comprising feeding to the oil circuit a volume of fresh lubricating oil that corresponds to the volume of lubricating oil removed from the at least one collecting container.

### Claim 15 (depends on 13)

The method of claim 13, wherein the at least one component includes the at least one turbocharger.

### Claim 16 (depends on 13)

The method of claim 13, wherein the at least one component includes the blow-by filter.

### Claim 17

A system, comprising:
a controller configured to control an internal combustion engine to:
flow a lubricating oil in an oil circuit to lubricate and/or cool at least one component of the internal combustion engine, wherein the lubricating oil is provided for the oil circuit by at least one oil reservoir, wherein the at least one component includes at least one turbocharger and/or a blow-by filter;
collect the lubricating oil in the oil circuit downstream of the at least one component in a collecting container separate from the at least one oil reservoir; and
remove at least a part of the lubricating oil collected in the at least one collecting container by an oil remover.

### Claim 18 (depends on 17)

The system of claim 17, comprising the at least one component, the internal combustion engine, or a combination thereof.

### Claim 19 (depends on 17)

The system of claim 17, wherein the at least one component includes the at least one turbocharger.

### Claim 20 (depends on 17)

The system of claim 17, wherein the at least one component includes the blow-by filter.
