Swirl generating intake ports for internal combustion engines
AssigneeCummins Inc.
InventorsRobert G. Sperry, David M. Barnes
Life of this patent
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Abstract
An internal combustion engine includes a cylinder head configured to generate swirl in the charge flow introduced into the combustion chamber. The cylinder head includes a first port for receiving a first portion of the charge flow. The first port is configured to provide the first portion of the charge flow to a combustion chamber of the internal combustion engine. The cylinder head includes second port for receiving a second portion of the charge flow, and a swirl passage connecting an upstream portion of the second port to a downstream portion of the first port.
Claims20
An internal combustion engine, the internal combustion engine comprising:
- at least one cylinder including a combustion chamber;
- and
- a cylinder head configured to provide a charge flow to the combustion chamber, the cylinder head including:
- a first port connected to a first outlet of the first port, the first port being configured to introduce charge flow into the combustion chamber through the first outlet;
- a second port connected to a second outlet of the second port, the second port being configured to introduce charge flow into the combustion chamber through the second outlet;
- and
- a swirl passage connecting an upstream portion of the second port to a downstream portion of the first port, the swirl passage being configured to generate a swirl in the charge flow introduced into the combustion chamber through the first outlet with a portion of the charge flow diverted from the second port to the first port through the swirl passage.
A cylinder head for distributing a charge flow within an internal combustion engine, the cylinder head comprising:
- a first port for receiving a first portion of the charge flow, the first port being configured to provide the first portion of the charge flow to a combustion chamber of the internal combustion engine;
- a second port for receiving a second portion of the charge flow;
- and
- a swirl passage connecting an upstream portion of the second port to a downstream portion of the first port, the swirl passage being configured to divert a part of the second portion of the charge flow from the second port to the first port to generate swirl in the charge flow in the combustion chamber with a remaining part of the second portion of the charge flow being provided to the combustion chamber through the second port.
Dependencies are inferred from the claim text.