Patent Number: 6,530,273

Title: Metering device and method for delivering fluid employing a compensating element

Abstract: A metering device and method for delivering fluid that employs a compensating element. The metering device has a housing defining a fluid chamber that contains a pressurized fluid. The-housing further encloses an actuating drive, a valve needle and a compensating element. The housing terminates at a housing opening for delivery of fluid to the outside of the housing. Fluid is delivered from the housing by moving the actuating drive which in turn displaces the valve needle in an opening direction. Upon displacement of the valve needle, the valve needle moves axially in the opening direction with little, if any, lift loss due to the compensating element. The compensating element further acts to compensate for shifting or movement of metering components due to external factors, such as varying thermal loads, aging effects, and settling effects.

Inventors: Gottlieb; Bernhard (Munich, DE), Meixner; Hans (Munich, DE), Kappel; Andreas (Brunnthal, DE), Mock; Randolf (Munich, DE)

Assignee: Siemens Aktiengesellschaft

International Classification: F02M 61/16 (20060101); F02M 61/08 (20060101); F02M 61/00 (20060101); F16K 31/00 (20060101); F02M 51/06 (20060101); G01F 11/00 (20060101); G01F 11/32 (20060101); G01F 13/00 (20060101); F02M 63/00 (20060101); G01F 015/00 (); B67D 003/00 (); B05B 001/08 (); F16K 031/02 ()

Expiration Date: 03/11/2020