Fluid sprinkling – spraying – and diffusing – Including valve means in flow line – Reciprocating
Patent
1991-05-10
1994-04-12
Merritt, Karen B.
Fluid sprinkling, spraying, and diffusing
Including valve means in flow line
Reciprocating
2395851, 25112918, F16K 3102, F02M 5106, F15B 13044, H01F 716
Patent
active
053018745
ABSTRACT:
In electromagnetically actuatable valves, an adjusting sleeve is pressed into the flow bore of a core in order to adjust the spring force of a restoring spring. Because the known adjusting sleeves, for instance having two beads, have a sharp-edged embodiment in the region toward the flow bore, chips can be produced when they are pressed into the flow bore. The novel adjusting has a transitional region on its circumference, between the at least one bead and an end segment oriented toward the valve closing body; at least one rounded portion is provided between the transitional region and the adjacent bead. Thus when the adjusting sleeve is pressed into the flow bore of the core, chip formation at the adjusting sleeve and flow bore is prevented. The adjusting sleeve is particularly suitable for injection valves of fuel injection systems of mixture-compressing internal combustion engines with externally supplied ignition.
REFERENCES:
patent: 2519035 (1950-08-01), Esty
patent: 3447820 (1969-06-01), Durnan
patent: 4575009 (1986-03-01), Giraudi
patent: 4660770 (1987-04-01), Giesking
patent: 4706887 (1987-11-01), Harvey et al.
patent: 4807812 (1989-02-01), Renowden et al.
patent: 4946107 (1990-08-01), Hunt
patent: 4967966 (1990-11-01), Babitzka et al.
Maier Martin
Reiter Ferdinand
Vogt Dieter
Greigg Edwin E.
Greigg Ronald E.
Merritt Karen B.
Robert & Bosch GmbH
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