초록 ▼

The invention provides a charge air cooler, especially for motor vehicles, having a finned-tube block. The finned-tube block includes flat tubes through which charge air can flow and at least one fin member attached to the flat tubes. At least one fin member includes rows of webs and web crosspieces

The invention provides a charge air cooler, especially for motor vehicles, having a finned-tube block. The finned-tube block includes flat tubes through which charge air can flow and at least one fin member attached to the flat tubes. At least one fin member includes rows of webs and web crosspieces, the rows offset relative to each other by a predetermined distance. At least one web and/or one web crosspiece possesses at least one vortex generator.

대표청구항 ▼

The invention provides a charge air cooler, especially for motor vehicles, having a finned-tube block. The finned-tube block includes flat tubes through which charge air can flow and at least one fin member attached to the flat tubes. At least one fin member includes rows of webs and web crosspieces

The invention provides a charge air cooler, especially for motor vehicles, having a finned-tube block. The finned-tube block includes flat tubes through which charge air can flow and at least one fin member attached to the flat tubes. At least one fin member includes rows of webs and web crosspieces, the rows offset relative to each other by a predetermined distance. At least one web and/or one web crosspiece possesses at least one vortex generator. r conduit to a source of steam and a plurality of openings spaced-apart therein for discharging steam from the inner conduit, the inner conduit being a tube, and an outer conduit extending about the inner conduit, the inlet ends of the tubes being connected to the outer conduit, the outer conduit having a closed end adjacent the second end of the inner conduit, a mount for the inner conduit being fixedly connected to the closed end of the outer conduit and slidably engaging the second end of the inner conduit, the mount having an exterior shape similar to the inside of the tube. 5. The steam heat exchanger as claimed in claim 4, wherein the tube and the exterior shape of the mount are circular in section.6. The steam heat exchanger as claimed in claim 5, wherein the outer conduit has an end cap on the closed end thereof, the end cap having an inner surface, the mount being connected to the inner surface and extending towards the inner conduit.7. The steam heat exchanger as claimed in claim 6, wherein the mount is tubular and fits slidably within the second end of the inner conduit.8. The steam heat exchanger as claimed in claim 7, wherein the mount has a bottom with a drain hole therein.9. A steam heat exchanger for a wood pulp dryer, the heat exchanger having a first end, a second end which is opposite the first end, a first side onto which air is directed, a second side which is opposite to the first side, and comprising: a plurality of tubes, each having an inlet end and an outlet end, the tubes extending between the ends of the heat exchanger in parallel, spaced-apart relationship to each other, the tubes being arranged in a first row and a second row, the first row being adjacent to the first side of the heat exchanger and the second row being further from the first side than the first row; an outlet header near the second end of the heat exchanger, the outlet ends of the tubes being connected to the outlet header; a steam inlet header near the first end of the heat exchanger, the inlet ends of the tubes being connected to the inlet header; and a flow restrictor located operatively between the inlet header and the outlet ends of each of the tubes of the second row, whereby a flow of steam through the second row of tubes is reduced compared to a flow of steam through the first row of tubes. 10. A steam heat exchanger as claimed in claim 9, wherein the flow restrictor is elongated, having an internal opening with a first section and a second section, the first section being closer to the inlet header than the second section, the first section having a smaller internal cross-section than the second section, whereby steam exiting from the first section diverges and impacts of the flow restrictor along the second section.11. A steam heat exchanger as claimed in claim 9, having three rows of tubes, the third row of tubes being between the first and second rows of tubes.12. A heat exchanger as claimed in claim 9, wherein the flow restrictors are adjacent to the inlet ends of the tubes.13. A steam heat exchanger for a wood pulp dryer, the heat exchanger having a first end, a second end which is opposite the first end, and comprising: a plurality of tubes, each having an inlet end and an outlet end, the tubes extending between the ends of the heat exchanger in parallel, spaced-apart relationship to each other; an outlet header near the second end of the heat exchanger, the outlet ends of the tubes being connected to the outlet header; and a steam inlet header near the first end of the heat exchanger, the inlet header having an inner conduit with an outer surface, a central axis, a connector at a first end thereof for connecting the inner conduit to a source of steam and a plurality of openings spaced-apart therein for discharging steam from the inner conduit, and an outer conduit extending about the inner conduit, the inlet ends of the tubes being connected to the outer conduit, the openings in the inner condu