Back to results
US 7,073,491 B2Granted
Exhaust gas recirculation (EGR) system
AssigneeHyundai Motor Company
InventorJea Woong Yi
Life of this patent
Estimating the term…
Abstract
An EGR system has an EGR distributor in the form of a single plate integrally equipped with an exhaust gas passage and a coolant passage for recirculated exhaust gas therewith. The lengths of each exhaust gas passages for the recirculated exhaust gas to reach each cylinder are equal to each other, whereby the amount of the exhaust gas recirculated to each intake passage is same and the overall efficiency of the EGR system is improved. The EGR distributor is preferably manufactured in the form of a single component by AL die casting method.
Claims19
An EGR system, comprising:
- a cylinder head;
- an intake manifold having runners and a flange integrally formed at the end of the runners for engaging said intake manifold to said cylinder head;
- and
- an EGR distributor disposed between said intake manifold and said cylinder head, the EGR distributor having a coolant means formed integrally thereon for cooling EGR,
- wherein said EGR distributor is provided with at least one EGR plate having a coolant passage formed on the front surface facing said intake manifold and an exhaust gas passage formed on the back surface facing said cylinder head,
- wherein said coolant passage formed on the front surface of said EGR plate is in coolant communication with a coolant passage of said cylinder head.
3 more elements
An EGR system, comprising:
- a cylinder head;
- an intake manifold defining intake passages, said intake manifold being configured to couple with said cylinder head;
- and
- an EGR distributor configured and dimensioned to be disposed between said intake manifold and said cylinder head, the EGR distributor defining a coolant path for cooling EGR;
- wherein said coolant path is in coolant communication with a coolant passage of said cylinder head.
2 more elements
An EGR plate, comprising:
- a plate configured and dimensioned to be disposed between an intake manifold and a cylinder head of an internal combustion engine;
- wherein said plate defines:
- an exhaust recirculation passage configured substantially within a first surface of said plate, wherein the first surface engages the cylinder head;
- and
- a coolant passage configured substantially within a second surface of said plate, wherein the second surface engages the intake manifold;
- wherein said coolant passage is in coolant communication with a coolant passage of said cylinder head.
3 more elements
Dependencies are inferred from the claim text.