IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0881618
(2001-06-14)
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발명자
/ 주소 |
- Schwartz, Dennis W.
- De Jarlais, George
- Kocher, Christopher G.
- Gomez, Mario P.
- Gonzalez Artigas, Ildefonso
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
5 인용 특허 :
17 |
초록
▼
A compound meter assembly (10) has a housing (15, 17, 19), a high volume flow meter (14) disposed in a main flow passageway (22) for detecting a flow rate of relatively higher volume flows and a low volume flow meter (12) disposed in the secondary flow passageway (29) for detecting a flow rate of re
A compound meter assembly (10) has a housing (15, 17, 19), a high volume flow meter (14) disposed in a main flow passageway (22) for detecting a flow rate of relatively higher volume flows and a low volume flow meter (12) disposed in the secondary flow passageway (29) for detecting a flow rate of relatively lower volume flows. A flow distributor (70) is disposed in the inlet and disposed adjacent the entrance (27) into the secondary flow passageway from the main passageway, said flow distributor (70) having a central opening (71) for receiving the main flow and having flow ports (72) disposed around its circumference for allowing portions of the main flow to flow towards interior walls (26) of the housing (15, 17, 19) such that the flow is better distributed across a cross section of the main passageway (22) to maintain the accuracy of the meter at a crossover region (61, 62) between low flows being metered by the low volume flow meter (12) and high flows being metered by the high volume flow meter (14).
대표청구항
▼
A compound meter assembly (10) has a housing (15, 17, 19), a high volume flow meter (14) disposed in a main flow passageway (22) for detecting a flow rate of relatively higher volume flows and a low volume flow meter (12) disposed in the secondary flow passageway (29) for detecting a flow rate of re
A compound meter assembly (10) has a housing (15, 17, 19), a high volume flow meter (14) disposed in a main flow passageway (22) for detecting a flow rate of relatively higher volume flows and a low volume flow meter (12) disposed in the secondary flow passageway (29) for detecting a flow rate of relatively lower volume flows. A flow distributor (70) is disposed in the inlet and disposed adjacent the entrance (27) into the secondary flow passageway from the main passageway, said flow distributor (70) having a central opening (71) for receiving the main flow and having flow ports (72) disposed around its circumference for allowing portions of the main flow to flow towards interior walls (26) of the housing (15, 17, 19) such that the flow is better distributed across a cross section of the main passageway (22) to maintain the accuracy of the meter at a crossover region (61, 62) between low flows being metered by the low volume flow meter (12) and high flows being metered by the high volume flow meter (14). and the longitudinal axis MRof the container being a distance apart and substantially parallel to the longitudinal axis MKof the die opening, so that the longitudinal axis MKof the die opening in cross-section lies between a pair of straight lines g1and g2respectively passing through the mandrel arm longitudinal axis MDand the container chamber longitudinal axis MRas well as perpendicular to a line p connecting the mandrel arm longitudinal axis MDand the container chamber longitudinal axis MR. 2. An extrusion press device according to claim 1, wherein the container chamber longitudinal axis MR,the mandrel arm longitudinal axis MDand the die opening longitudinal axis MKlie on a common plane and are parallel to each other, and the die opening longitudinal axis MKlies in cross-section between the container chamber longitudinal axis MRand the mandrel arm longitudinal axis MD. 3. An extrusion press device according to claim 1, wherein a relative eccentricity ERof the mandrel arm deviates, with respect to the container chamber, by less than 10% from a relative eccentricity ERmof the mandrel arm, with respect to the die opening, whereby wall thicknesses for calculating the relative eccentricities are distances between an outer face of the mandrel arm and the container chamber wall and between the outer face of the mandrel arm and a wall of the die opening. 4. An extrusion press device according to claim 3, wherein the relative eccentricity ERof the mandrel arm deviates by less than 5%. 5. An extrusion press device according to claim 4, wherein the relative eccentricity ERof the mandrel arm deviates less than 2%. 6. An extrusion press device according to claim 1, wherein the relative eccentricity ERmis of the tip of the mandrel arm with respect to the die opening. 7. An extrusion press device according to claim 3, wherein a ratio A/B of a smallest radial distance A to a largest radial distance B between the outer face of the mandrel arm and the wall of the container chamber is substantially equal to a ratio a/b of a smallest radial distance a to a largest radial distance b between the outer face of the mandrel arm and the wall of the die opening. 8. An extrusion press device according to claim 7, wherein the ratio A/B is exactly equal to the ratio a/b. 9. An extrusion press device according to claim 7, wherein the ratio a/b is a ratio of the smallest radial distance a to the largest radial distance b between the outer face of the mandrel arm tip and the wall of the die opening. 10. Extrusion press device according to claim 1, wherein the mandrel arm and the die opening have shaping walls that are circular in cross-section. 11. An extrusion press device according to claim 1, wherein the mandrel arm has a diameter DTand the tip has a diameter dt,where the diameter dt,is less than 10% smaller than the diameter DT,the mandrel arm in the position for extrusion being arranged such that the tip engages in the die opening. 12. An extrusion press device according to claim 11, wherein the diameter dtis less than 5% smaller than the diameter DT. 13. An extrusion process for manufacturing an eccentric pipe section out of an extrusion block employing an extrusion press device having a container with a chamber with a longitudinal axis MRwhich accommodates the extrusion block, an extrusion stem which is introduced into the container chamber and features a dummy block, a mandrel body forming an inner wall of the pipe-section, and a die with an opening with a longitudinal axis MKforming an outer wall of the pipe section, the mandrel body is a mandrel arm of longitudinal axis MDwith a tip, the mandrel arm being arranged eccentric in cross-
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