Manifold for flow distribution
A manifold ( 100 ) comprising an inlet port ( 102 ) for receiving a fluid flow, said inlet port defining a flow passage ( 122 ); a plurality of outlet ports ( 104 - 114 ); wherein some of the outlet ports are provided with direct communication with said flow passage ( 122 ); and the ports being connected by auxiliary passages adapted to convey fluid between said outlet ports to reduce stagnation pressure zones and maintain desired pressure distribution at each outlet port.
1. A manifold ( 100 ) comprising:
an inlet port ( 102 ) for receiving a fluid flow, said inlet port defining a flow passage ( 122 ) for traversing the fluid;
a plurality of outlet ports ( 104 , 106 , 108 , 110 , 112 and 114 ) positioned in linear sets on either side of said flow passage for discharging the fluid flow;
wherein, some of said plurality of outlet ports ( 108 , 110 , 112 and 114 ) in each set are provided with direct operative communication with said flow passage ( 122 ) by means of apertures ( 124 , 126 ) adapted to receive the fluid flow; and
the ports in each set of outlet ports on either side of said flow channel are operatively connected by auxiliary passages ( 128 ), said auxiliary passages being adapted to convey fluid between said outlet ports to reduce the stagnation pressure zone and maintain a desired pressure distribution at each outlet port.
2. The manifold as claimed in claim 1 , wherein each set of outlet ports consists of three outlet ports on each side of said flow passage ( 122 ).
3. The manifold as claimed in claim 2 , wherein outlet ports ( 104 , 106 ) nearest to said inlet port ( 102 ) are not in direct operative communication with said flow passage ( 122 ).
4. The manifold as claimed in claim 2 , wherein outlet ports ( 108 , 110 ) are in direct operative communication with said flow passage ( 122 ) by means of a first aperture ( 124 ).
5. The manifold as claimed in claim 4 , wherein ratio of the cross-sectional area of said flow passage ( 122 ) to the cross sectional area of said first aperture ( 124 ) is between 1:0.3-1:0.6.
6. The manifold as claimed in claim 4 , wherein ratio of the cross-sectional area of said first aperture ( 124 ) to the cross-sectional area of said auxiliary passage ( 128 ) is between 1:0.2-1:0.4.
7. The manifold as claimed in 4 , wherein ratio of the cross-sectional area of said first aperture ( 124 ) to the cross-sectional area of said second aperture ( 126 ) is between 1:1.6-1:1.9.
8. The manifold as claimed in claim 2 , wherein outlet ports ( 112 , 114 ) are in direct operative communication with said flow passage ( 122 ) by means of a second aperture ( 126 ).
9. The manifold as claimed in claim 5 , wherein ratio of the cross-sectional area of said first aperture ( 124 ) to the cross-sectional area of said second aperture ( 126 ) is between 1:1.6-1:1.9.
10. The manifold as claimed in claim 1 , wherein a solenoid valve is provided at selective outlet ports ( 104 , 106 , 112 & 114 ) to close said outlet ports.
11. The manifold as claimed in claim 1 , wherein the flow variation in the outlet ports is less than 5%.
12. The manifold as claimed in claim 1 , wherein dimension of said inlet port ( 102 ) is smaller than dimension of said flow passage ( 122 ).
13. The manifold as claimed in claim 1 , wherein ratio of the cross-sectional area area of said inlet port ( 102 ) to the cross-sectional area of said outlet ports ( 104 , 106 , 108 , 110 , 112 & 114 ) is between 1:1.7-1:2.3.
14. The manifold as claimed in claim 1 , wherein said auxiliary passages ( 128 ) are parallel to said flow passage ( 122 ).
15. The manifold as claimed in claim 1 , wherein said auxiliary passage ( 128 ) are not parallel to said flow passage ( 122 ).
16. The manifold as claimed in claim 1 , wherein said auxiliary passage ( 128 ) is stepped.