Flow guiding structure for an internal combustion engine
First Claim
1. A flow guiding structure for guiding into a predetermined flow pattern a flow of gas flowing into a gas passageway leading towards a combustion chamber of an internal combustion engine, said gas passageway including a passageway delimiting wall and defining a passageway axis, said structure comprising:
- a substantially tubular peripheral wall delimiting a structure passage, said peripheral wall defining a peripheral wall first edge, an opposed peripheral wall second edge and a passage longitudinal axis;
said peripheral wall having a base section extending from said peripheral wall first edge for allowing said structure to be secured to said gas passageway;
said peripheral wall also having a guiding section extending substantially from said base section to said peripheral wall second edge for allowing said flow of gas to be guided into said predetermined flow pattern;
a plurality of guiding vanes, each extending substantially radially inward from said guiding section about a corresponding vane first edge;
each of said vane first edges extending from a first edge proximal end located substantially adjacent said base section to a first edge distal end located substantially adjacent said peripheral wall second edge;
at least one of said guiding vanes including a vane second edge extending in a second edge geometrical plane substantially perpendicular to said structure longitudinal axis from said first edge distal end to a second edge distal end;
said at least one of said guiding vanes also including a vane third edge extending from said second edge distal end to said first edge proximal end.
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Abstract
A flow guiding structure for guiding into a clockwise swirling flow pattern gas flowing into a gas passageway leading toward a combustion chamber of an internal combustion engine. The structure includes a tubular peripheral wall having a base section for securing the structure to the gas passageway and an integrally extending guiding section. A plurality of guiding vanes extend radially inward from the guiding section each about a corresponding vane first edge. Each guiding vane includes a vane second edge extending in a geometrical plane perpendicular to the structure longitudinal axis. Each guiding vane further includes a substantially convex vane third edge. The guiding section is provided with a plurality of guiding bents formed therein and extending radially inwardly. The guiding bents are adapted to act as an auxiliary guide and as reinforcement for the structure.
62 Citations
22 Claims
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1. A flow guiding structure for guiding into a predetermined flow pattern a flow of gas flowing into a gas passageway leading towards a combustion chamber of an internal combustion engine, said gas passageway including a passageway delimiting wall and defining a passageway axis, said structure comprising:
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a substantially tubular peripheral wall delimiting a structure passage, said peripheral wall defining a peripheral wall first edge, an opposed peripheral wall second edge and a passage longitudinal axis;
said peripheral wall having a base section extending from said peripheral wall first edge for allowing said structure to be secured to said gas passageway;
said peripheral wall also having a guiding section extending substantially from said base section to said peripheral wall second edge for allowing said flow of gas to be guided into said predetermined flow pattern;
a plurality of guiding vanes, each extending substantially radially inward from said guiding section about a corresponding vane first edge;
each of said vane first edges extending from a first edge proximal end located substantially adjacent said base section to a first edge distal end located substantially adjacent said peripheral wall second edge;
at least one of said guiding vanes including a vane second edge extending in a second edge geometrical plane substantially perpendicular to said structure longitudinal axis from said first edge distal end to a second edge distal end;
said at least one of said guiding vanes also including a vane third edge extending from said second edge distal end to said first edge proximal end. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A flow guiding structure for guiding into a predetermined flow pattern a flow of gas flowing into a gas passageway leading towards a combustion chamber of an internal combustion engine, said gas passageway including a passageway delimiting wall and defining a passageway axis, said structure comprising:
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a plurality of guiding vanes, each extending substantially radially inward from said guiding section about a corresponding vane first edge;
each of said vane first edges extending from a first edge proximal end located substantially adjacent said base section to a first edge distal end located substantially adjacent said peripheral wall second edge;
each of said guiding vanes including a vane second edge extending in a second edge geometrical plane substantially perpendicular to said structure longitudinal axis from said first edge distal end to a second edge distal end;
each of said guiding vanes also including a vane third edge extending from said second edge distal end to said first edge proximal end.
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19. A flow guiding structure for guiding into a predetermined flow pattern a flow of gas flowing into a gas passageway leading towards a combustion chamber of an internal combustion engine, said gas passageway including a passageway delimiting wall and defining a passageway axis, said structure comprising:
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a substantially tubular peripheral wall delimiting a structure passage, said peripheral wall defining a peripheral wall first edge, an opposed peripheral wall second edge and a passage longitudinal axis;
said peripheral wall having a base section extending from said peripheral wall first edge for allowing said structure to be secured to said gas passageway;
said peripheral wall also having a guiding section extending substantially from said base section to said peripheral wall second edge for allowing said flow of gas to be guided into said predetermined flow pattern;
a plurality of guiding vanes, each extending radially inward from said guiding section, said guiding vanes being configured, sized and positioned so as to guide said flow of gas into said predetermined flow pattern;
said guiding section being provided with at least one guiding bent formed therein and extending substantially inward into said structure passage, said at least one guiding bent being configured, positioned and sized so as to act as an auxiliary guide and cooperate with said guiding vanes for guiding said flow of gas into said predetermined flow pattern. - View Dependent Claims (20)
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21. A flow guiding structure for guiding into a predetermined flow pattern a flow of gas flowing into a gas passageway leading towards a combustion chamber of an internal combustion engine, said gas passageway including a passageway delimiting wall and defining a passageway axis, said structure comprising:
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a substantially tubular peripheral wall delimiting a structure passage, said peripheral wall defining a peripheral wall first edge, an opposed peripheral wall second edge and a passage longitudinal axis;
said peripheral wall having a base section extending from said peripheral wall first edge for allowing said structure to be secured to said gas passageway;
said peripheral wall also having a guiding section extending substantially from said base section to said peripheral wall second edge for allowing said flow of gas to be guided into said predetermined flow pattern;
a plurality of guiding vanes, each extending substantially radially inward from said guiding section, said guiding vane being configured, sized and positioned so as to guide said flow of gas into a substantially clockwise swirling flow pattern. - View Dependent Claims (22)
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Specification