FIELD: engines and pumps.
SUBSTANCE: bench nozzle for control of high pressure fuel pumps comprises body with spring, adjusting screw, stem, captive nut, obturating needle located in needle body and bleed. Adjusting screw represents telescopic design, internal part of which moves relative to the external one and has side perforation, acting as controlled limiter of needle travel, and needle tip has surface with smooth concave curvilinear outline, which has been produced by rotation of parabola around needle axis that rests against bleed seat with responsive smooth convex curvilinear outline.
EFFECT: higher control range, stability of control and hydraulic parameters of test bench for control of high pressure fuel pumps.
3 cl, 6 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| TEST-BED NOZZLE FOR CONTROL OF HIGH PRESSURE FUEL PUMP | 2008 |
|
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