Patent · US Expired

Engine speed control circuit for drag racing

US4840157A · kind A · utility

12Cited by
7References
16Claims
0Family size

Inventor

Key dates

Filing dateMay 20, 1988
Grant dateJun 20, 1989
Priority date
Expiry dateMay 20, 2008

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF02D41/06
  • WIPO fieldEngines, pumps, turbines
  • WIPO sectorMechanical engineering

Abstract

A circuit for decreasing the engine speed of a drag racer for a selected interval during a race has a programmable first down counter for setting the time the interval begins, a programmable second down counter for setting the duration of the interval and a clock connected to both counters.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.