Turbomachine combustion chamber shell ring
First Claim
Patent Images
1. A turbomachine combustion chamber shell ring, comprising:
- dilution holes;
ventilation holes surrounding the dilution holes and being finer and more numerous than the dilution holes; and
inserts extending over and around the dilution holes on an outer face of the shell ring,wherein the shell ring is devoid of ventilation holes at portions situated beneath the inserts,wherein the inserts each comprise an outer edge for attaching to the shell ring and an orifice extending over one of the respective dilution holes, and the inserts are traversed by holes directed towards the portions of the shell ring, andwherein the outer edge surrounds the holes traversing the inserts and the portions of the shell ring devoid of ventilation holes situated beneath the inserts.
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Abstract
A turbomachine combustion chamber shell ring in which dilution holes in the turbomachine combustion chamber shell ring are covered with inserts defining chambers around same on an inner face of the shell ring. Ventilation holes, through the insert, induce ventilation of portions of the shell ring surrounding the dilution holes, cool the portions, and prevent crack formation.
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Citations
10 Claims
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1. A turbomachine combustion chamber shell ring, comprising:
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dilution holes; ventilation holes surrounding the dilution holes and being finer and more numerous than the dilution holes; and inserts extending over and around the dilution holes on an outer face of the shell ring, wherein the shell ring is devoid of ventilation holes at portions situated beneath the inserts, wherein the inserts each comprise an outer edge for attaching to the shell ring and an orifice extending over one of the respective dilution holes, and the inserts are traversed by holes directed towards the portions of the shell ring, and wherein the outer edge surrounds the holes traversing the inserts and the portions of the shell ring devoid of ventilation holes situated beneath the inserts. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A turbomachine combustion chamber comprising:
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a shell ring; the shell ring comprising dilution holes and ventilation holes surrounding the dilution holes and being finer and more numerous than the dilution holes; and inserts extending over and around the dilution holes on an outer face of the shell ring, wherein the shell ring is devoid of ventilation holes at portions situated beneath the inserts; wherein the inserts each comprise an outer edge for attaching to the shell ring and an orifice extending over one of the respective dilution holes, and the inserts are traversed by holes directed towards the portions of the shell ring, and wherein the outer edge surrounds the holes traversing the inserts and the portions of the shell ring devoid of ventilation holes situated beneath the inserts.
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Specification