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US 11,143,149 B2Granted
Cobra head air intake ports
AssigneeCummins Inc.
InventorsRobert G. Sperry, Terry D. Partridge, Steven L. Leffler, Kartikeya Tyagi, Amit A. Kulkarni, Pallav Jha
Life of this patent
Estimating the term…
Abstract
The present disclosure provides air intake ports and/or intake manifolds having an altered configuration to improve the efficiency of the air intake ports, intake manifolds, and by extension, the engine.
Claims18
An intake system comprising:
- an intake port having an inlet portion, an outlet portion, and a single bend portion positioned between the inlet portion and an outlet portion;
- an intake manifold coupled to the inlet portion of the intake port;
- and
- an engine having an engine cylinder, wherein the outlet portion is coupled to the engine so that the intake port is in communication with the engine cylinder;
- wherein:
- the inlet portion of the intake port has a first axis length and a second axis length;
- the bend portion of the intake port has a third axis and a fourth axis length;
- the outlet portion of the intake port has a fifth axis length and a sixth axis length at portions downstream of the bend;
- and
- the third axis length is greater than the first axis length and the second axis length is greater than the fourth axis length.
7 more elements
An air inlet assembly comprising:
- an elbow section having an inlet portion, an outlet portion, and a bend portion positioned between the inlet portion and the outlet portion;
- a cooler coupled to the inlet portion of the elbow section via a throttle valve;
- an intake manifold coupled to the outlet portion of the elbow section so that the elbow section is in communication with an engine cylinder;
- and
- the bend portion having a first turn near the inlet portion and a second turn near the outlet portion, wherein the first turn and the second turn cooperate to change a direction of air flow through the elbow section;
- a substantially straight section directly connecting the first turn and the second turn so that the first turn, the second turn, and the substantially straight section are substantially planar;
- a first bulge section adjacent to the first turn;
- and
- a second bulge section adjacent to the second turn, wherein the first bulge section and the second bulge section are configured to maintain flow uniformity and reduce pressure drop of the air flow.
6 more elements
An air intake assembly comprising:
- an elbow section having an inlet portion, an outlet portion, and a bend portion positioned between the inlet portion and an outlet portion;
- a cooler coupled to the inlet portion of the elbow section via a throttle valve;
- an intake manifold coupled to the outlet portion of the elbow section so that the elbow section is in communication with an engine cylinder;
- and
- wherein the elbow section has:
- a first axis length and a second axis length at portions upstream of the bend portion;
- a third axis length and a fourth axis length at the bend portion;
- and
- a fifth axis length and a sixth axis length at portions downstream of the bend portion;
- and
- wherein the third axis length is greater than the first axis length and the second axis length is greater than the fourth axis length;
- the elbow section has a first cross-sectional area at a location upstream or downstream of the bend portion, and a second cross-sectional area at the bend portion that is substantially equal to the first cross-sectional area;
- and
- wherein the bend portion has:
- a first turn near the inlet portion and a second turn near the outlet portion, wherein the first turn and the second turn cooperate to change a direction of air flow through the bend portion;
- a substantially straight section directly connecting the first turn and the second turn so that the first turn, the second turn, and the substantially straight section are substantially planar;
- a first bulge section adjacent to the first turn;
- and
- a second bulge section adjacent to the second turn, wherein the first bulge section and the second bulge section are configured to maintain flow uniformity and reduce pressure drop of the air flow.
16 more elements
Dependencies are inferred from the claim text.