초록 ▼

A fuel control system (10 or 70) includes a hydraulic servo system (17) for moving a fuel rack (15) in response to movement of a rack control member (16). A brushless direct current torque motor (50), having a rotor (51) and a control lever (53) fixed thereto, is arranged with its lever end (54) con

A fuel control system (10 or 70) includes a hydraulic servo system (17) for moving a fuel rack (15) in response to movement of a rack control member (16). A brushless direct current torque motor (50), having a rotor (51) and a control lever (53) fixed thereto, is arranged with its lever end (54) confined between opposed shoulders (41, 42) on the rack control member (16). Electronically energized movement of the rotor (51) and its control lever (53) in one direction, or spring (56) biased movement in the other, causes corresponding movement of the control member (16) and fuel rack (15). A second control lever (99), movable by a mechanical governor control (80), is engageable with another shoulder (104) on the rack control member (16) to move it in a fuel-decreasing direction. The present fuel control systems (10 and 70) are particularly useful in conjunction with a fuel injection pump (11) for a diesel engine (13) with the fuel flow rate being controlled in sole response (10) to an electronic engine control (60) or in dual response (70) to an electronic engine control (60) and a mechanical governor control (80).

대표청구항 ▼

A fuel control system (70) comprising: a fuel rack (15) movable in opposite fuel-increasing and fuel-decreasing directions; a rack control member (16) movable in opposite fuel-increasing and fuel-decreasing directions; servo system means (17) for moving said fuel rack in response to movement of said

A fuel control system (70) comprising: a fuel rack (15) movable in opposite fuel-increasing and fuel-decreasing directions; a rack control member (16) movable in opposite fuel-increasing and fuel-decreasing directions; servo system means (17) for moving said fuel rack in response to movement of said rack control member (16); an electrically energizable member (51) movable in opposite fuel-increasing and fuel-decreasing directions, said electrically energizable member (51) being urged to move in its fuel-decreasing direction when energized; first coupling means (52) for connecting said electrically energizable member (51) to said rack control member (16) to move said rack control member (16) in its fuel-decreasing direction in response to movement of said electrically energizable member (51) in its fuel-decreasing direction; a mechanical governor control (80) having a member (90) movable in opposite fuel-increasing and fuel-decreasing directions; second coupling means (98) for connecting said mechanical governor (80) to said rack control member (16) to move said rack control member (16) in its fuel-decreasing direction in response to movement of said mechanical governor member (90) in its fuel-decreasing direction, said second coupling means having the further functions of allowing the position of said rack control member (16) to be controlled solely by said electrically energizable member (51) when said electrically energizable member (51) has been urged to move by the energization thereof to a position calling for less fuel than the position of said mechanical governor member (90), and of enabling the position of said rack control member (16) to be controlled by said mechanical governor member (90) when said mechanical governor member (90) is at a position calling for less fuel than the position to which said electrically energizable member (51) has been urged by the energization thereof; bias means (55) for biasing said rack control member (16) to move in its fuel-increasing direction.