1. A coating material applying method for applying an image protecting coating material to a surface of a print, including the steps of:
applying said image protecting coating material to said surface of said print by spraying said image protecting coating material thereto from a plurality of droplet spray nozzles while said print is moved relatively to said droplet spray nozzles, said image protecting coating material being provided to protect an image on said print, wherein;
an area for image protecting coating material application is determined as a particular area on said print, said image protecting coating material being applied to said particular area by spraying said image protecting coating material selectively onto said particular area;
said plurality of droplet spray nozzles are arranged transversely of said print, said image protecting coating material being applied selectively to said particular area by spraying said image protecting coating material from selected droplet spray nozzles corresponding to said particular area among said plurality of droplet spray nozzles; and
said particular area is determined based on image data forming said image on said print;
the method further including the steps of:
obtaining coating conditions for said particular area; and
converting the obtained coating conditions into control data for said selected droplet nozzles.
2. The coating material applying method as defined in claim 1, wherein said image protecting coating material is an ultraviolet-curable coating material, said image protecting coating material being cured by emitting ultraviolet light to said print after applying said image protecting coating material to said print.
3. The method of claim 1, wherein the coating conditions comprise at least one of a droplet size and a number of droplets.
4. A coating material applying apparatus for applying an image protecting coating material to a surface of a print, comprising:
a plurality of droplet spray nozzles for spraying said image protecting coating material on said surface of said print to apply said image protecting coating material thereto, said image protecting coating material being provided to protect an image on said print;
moving means for moving said print relative to said droplet spray nozzles;
area determining means for determining an area for image protecting coating material application as a particular area on said print;
an instruction device for obtaining coating conditions for said particular area, wherein said area determining means is for converting said coating conditions into control data for said droplet spray nozzles; and
control means for selectively driving, based on said control data, droplet spray nozzles corresponding to said particular area from among said plurality of droplet spray nozzles and causing said image protecting coating material to be sprayed from said droplet spray nozzles selected;
wherein said area determining means is arranged to determine said particular area based on image data forming said image on said print.
5. The coating material applying apparatus as defined in claim 4, wherein said image protecting coating material is an ultraviolet-curable coating material, said apparatus further comprising ultraviolet light emitting means for emitting ultraviolet light to said print after said droplet spray nozzles apply said image protecting coating material to said print.
6. The apparatus of claim 4, wherein the coating conditions comprise at least one of a droplet size and a number of droplets.
7. A printing machine for performing printing based on image data, comprising:
a transport mechanism for transporting a print;
coating applying means including a plurality of droplet spray nozzles arranged perpendicular to a direction in which said print is transported by said transport mechanism, for spraying an image protecting coating material on said print as said print is transported, said image protecting coating material being provided to protect an image on said print;
area determining means for determining, based on said image data, an area for image protecting coating material application as a particular area on said print;
an instruction device for obtaining coating conditions for said particular area, wherein said area determining means is for converting said coating conditions into control data for said droplet spray nozzles; and
control means for selectively driving, based on said control data, droplet spray nozzles corresponding to said particular area from among said plurality of droplet spray nozzles, and causing said image protecting coating material to be sprayed from said droplet spray nozzles selected;
wherein said area determining means is arranged to recognize an image area on said print from said image data, and determine said particular area to coincide with said image area.
8. The printing machine as defined in claim 7, further composing:
platemaking means for making printing plates based on said image data; and
printing means for performing printing by using said printing plates.
9. The printing machine as defined in claim 7, wherein said area determining means is arranged to determine said particular area as an area for image protecting coating material application on said print based on data inputted by an operator.
10. The printing machine as defined in claim 7, wherein said image protecting coating material is an ultraviolet-curable coating material, said printing machine further comprising ultraviolet light emitting means disposed downstream of said coating applying means with respect to said direction in which said print is transported, for emitting ultraviolet light to said print.
11. The apparatus of claim 7, wherein the coating conditions comprise at least one of a droplet size and a number of droplets.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. An exhaust gas recirculation cooler comprising:
a housing including an exhaust gas region, a coolant region, an exhaust gas inlet that provides communication between an exhaust gas from an engine and the exhaust gas region, and an exhaust gas outlet that provides communication between the exhaust gas region and an engine intake air supply; and
a first wall fixed within the housing and separating the exhaust gas region from the coolant region, the first wall including a first region facing the exhaust gas region and a first tab having a fixed end coupled to the first region and a free end generally opposite the fixed end, the free end being displaceable between first and second positions based on an operating temperature of the exhaust gas, the free end being displaced in a direction generally perpendicular to the first region when in the second position.
2. The exhaust gas recirculation cooler of claim 1, wherein the free end generates turbulent exhaust gas flow when in the second position.
3. The exhaust gas recirculation cooler of claim 1, wherein the first tab includes first and second portions, the first portion being formed from a first material and the second portion being formed from a second material, the first portion including an outer surface facing the exhaust gas region and an inner surface having the second portion coupled thereto, one of the first and second materials having a coefficient of thermal expansion that is greater than the other of the first and second materials.
4. The exhaust gas recirculation cooler of claim 3, wherein the second material has a coefficient of thermal expansion that is greater than a coefficient of thermal expansion of the first material.
5. The exhaust gas recirculation cooler of claim 3, wherein the first material has a coefficient of thermal expansion that is greater than a coefficient of thermal expansion of the second material.
6. The exhaust gas recirculation cooler of claim 3, wherein the displacement of the free end is caused by a difference in the coefficient of thermal expansion of the first and second materials.
7. The exhaust gas recirculation cooler of claim 3, wherein the first region of the first wall is formed from the first material.
8. The exhaust gas recirculation cooler of claim 1, wherein the free end of the first tab is located downstream of the fixed end in a flow direction of the exhaust gas.
9. The exhaust gas recirculation cooler of claim 1, wherein displacement of the free end removes a particulate matter from the first tab.
10. The exhaust gas recirculation cooler of claim 1, wherein displacement of the free end from the first position to the second position occurs as the operating temperature of the exhaust gas increases.
11. The exhaust gas recirculation cooler of claim 1, wherein displacement of the free end from the first position to the second position occurs as the operating temperature of the exhaust gas decreases.
12. The exhaust gas recirculation cooler of claim 11, wherein the first tab restricts a flow of the exhaust gas as the operating temperature of the exhaust gas decreases.
13. The exhaust gas recirculation cooler of claim 1, further comprising a second wall fixed within the housing, the second wall including a second region facing the exhaust gas region and the first region of the first wall, a second tab having a fixed end coupled to the second region of the second wall and a free end generally opposite the fixed end thereof, the free end of the second tab being displaceable between third and fourth positions based on an operating temperature of the exhaust gas.
14. The exhaust gas recirculation cooler of claim 13, wherein the free end of the second tab is displaced in a direction toward the first wall when in the fourth position.
15. The exhaust gas recirculation cooler of claim 13, wherein the free ends of the first and second tabs extend toward one another when the first tab is in the second position and the second tab is in the fourth position.
16. The exhaust gas recirculation cooler of claim 13, wherein the free end of the first tab is located downstream relative to the free end of the second tab in a flow direction of the exhaust gas.
17. The exhaust gas recirculation cooler of claim 13, wherein the free end of the second tab is displaced in a direction generally perpendicular to the second region when in the second position.
18. The exhaust gas recirculation cooler of claim 1, wherein the first tab extends at an angle relative to the first portion when the free end is in the second position.
19. The exhaust gas recirculation cooler of claim 1, wherein the first tab extends generally parallel to the first portion when the free end is in the first position.