Timing and speed sensor for fuel injection pump

Patent · Tue Nov 14 04:00:00 EST 1989

OSTI ID:7226389

Day, E; Aubin, J P; Peyot, J

This patent describes an apparatus. It comprises: a first rotating member; a second rotating member; coupling means for driving the second rotating member in syntony with and at variable rotational angles with respect to the first rotating member; first sensor means for producing reference pulses indicative of the times of occurrence of only one specific reference rotational position of the first rotating member; wheel means synchronously driven by the second rotating member and having a plurality of tooth members evenly spaced about it; second sensor means disposed adjacent the wheel means. The second sensor means producing a pulse for each occurrence of a juxtaposition one of the tooth members with the second sensor means; means responsive to the pulse from the second sensor means for providing a speed signal indicative of the rotational speed of the second rotating member, in response to the frequency or time interval between the pulses; means for producing a time-difference signal indicative of the timer interval between each pulse from the first sensor means and a next adjacent pulse from the second sensor means; and means responsive to the speed signal and to the time-difference signal for producing a signal which is a function of the product of the rotational speed times the time interval, and indicative of the angle between the first and second rotating members.

• Assignee: AIL Corp., Columbia, SC
• Patent Number(s): A; US 4879985
• Application Number: PPN: US 7-175685A
• OSTI ID: 7226389
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
440800 -- Miscellaneous Instrumentation-- (1990-)
47 OTHER INSTRUMENTATION
DESIGN
ENGINES
FUEL INJECTION SYSTEMS
FUEL SYSTEMS
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
MEASURING INSTRUMENTS
METERING
METERS
PUMPS