Claims
- 1. An apparatus for forming a restriction in a plate of a heat exchanger comprising:
a gag extending perpendicularly relative to the plate; and a servo motor operatively connected to said gag and for connection to a source of power for moving said gag for forming a restriction to fluid flow through either one of a fluid inlet and a fluid outlet of the plate.
- 2. An apparatus as set forth in claim 1 wherein said servo motor includes a movable ballscrew for movement between a retracted position and an extended position.
- 3. An apparatus as set forth in claim 2 including a gag slide connected to said ballscrew and extending perpendicular to said gag for cooperating with said gag.
- 4. An apparatus as set forth in claim 3 wherein said gag slide has an end surface being inclined and said gag has a head with a surface being inclined to cooperate with said end surface to move said gag up and down as said gag slide is retracted and extended.
- 5. An apparatus as set forth in claim 1 including a housing having a first aperture extending therein, said gag being disposed partially in said first aperture.
- 6. An apparatus as set forth in claim 5 including a spring for applying pressure against said gag to retract said gag within said housing.
- 7. An apparatus as set forth in claim 5 including a support plate connected to said housing and having a second aperture extending therethrough, said gag extending through said second aperture.
- 8. An apparatus as set forth in claim 7 including a first guide block connected to said support plate having a third aperture extending therein, said gag extending through said third aperture.
- 9. An apparatus as set forth in claim 8 including a second guide block connected to said first guide block having a fourth aperture extending therein, said gag being disposed partially in said fourth aperture.
- 10. An apparatus as set forth in claim 1 wherein said gag has a form punch at one end thereof for contacting the plate.
- 11. An apparatus for forming a restriction in a plate of a heat exchanger comprising:
a gag extending perpendicularly relative to the plate; a gag slide extending perpendicular to said gag for cooperating with said gag; and a servo motor including a movable ballscrew connected to said gag slide and for connection to a source of power for moving said gag slide and said gag between a retracted position and an extended position for forming a restriction to fluid flow through either one of a fluid inlet and a fluid outlet of the plate.
- 12. An apparatus as set forth in claim 11 including a housing having a first aperture extending therein, said gag being disposed partially in said first aperture.
- 13. An apparatus as set forth in claim 12 including a spring for applying pressure against said gag to retract said gag within said housing.
- 14. An apparatus as set forth in claim 12 including a support plate connected to said housing and having a second aperture extending therethrough, a first guide block connected to said support plate having a third aperture extending therethrough, and a second guide block connected to said first guide block having a fourth aperture extending therethrough, said gag extending through said second aperture, said third aperture, and said fourth aperture.
- 15. An apparatus as set forth in claim 11 wherein said gag slide has an end surface being inclined and said gag has a head with a surface being inclined to cooperate with said end surface to move said gag up and down as said gag slide is retracted and extended.
- 16. A method for forming a restriction in a plate of a heat exchanger comprising the steps of:
providing a plate extending longitudinally; providing an apparatus having a gag extending perpendicularly relative to the plate and a servo motor operatively connected to the gag and for connection to a source of power for moving the gag; moving the gag between a retracted position and an extended position by the servo motor; and forming a restriction to fluid flow through either one of a fluid inlet or fluid outlet of the plate.
- 17. A method as set forth in claim 16 wherein said step of forming comprises forming a plus-shaped member in one of the apertures forming either one of the fluid inlet or fluid outlet.
- 18. A method as set forth in claim 16 wherein said step of forming comprises forming one of the apertures forming either one of the fluid inlet or the fluid outlet with a diameter less than the other one of the fluid inlet or the fluid outlet.
- 19. A method as set forth in claim 16 wherein said step of forming comprises forming one of the apertures forming either one of the fluid inlet or the fluid outlet with a generally circular cross-sectional shape.
- 20. A method as set forth in claim 16 wherein said step of forming comprises forming either one of the fluid inlet or the fluid outlet from a plurality of the apertures having a diameter less than the aperture forming the other one of the fluid inlet or fluid outlet.
CROSS-REFERENCE TO RELATED APPLICATION(S)
[0001] The present application is a Continuation-In-Part of application Ser. No. 09/470,383, filed Dec. 22, 1999.
Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
09470383 |
Dec 1999 |
US |
Child |
09747722 |
Dec 2000 |
US |