초록 ▼

A pressure regulator having a movable seat and a seat retainer. The seat retainer having a hollow interior with an interior surface. The seat is disposed within the hollow interior of the seat retainer to control fluid flow through the pressure regulator. The seat may be adapted to slidingly engage

A pressure regulator having a movable seat and a seat retainer. The seat retainer having a hollow interior with an interior surface. The seat is disposed within the hollow interior of the seat retainer to control fluid flow through the pressure regulator. The seat may be adapted to slidingly engage the interior surface of the seat retainer during movement of the seat to dampen the movement of the seat. The seat may be elastically deformed by the seating surface when seated against the seating surface. The pressure regulator may have a stem extending through the seat retainer orifice and affixed to the solid body of the seat to move the seat in response to movement of a diaphragm.

대표청구항 ▼

A pressure regulator having a movable seat and a seat retainer. The seat retainer having a hollow interior with an interior surface. The seat is disposed within the hollow interior of the seat retainer to control fluid flow through the pressure regulator. The seat may be adapted to slidingly engage

A pressure regulator having a movable seat and a seat retainer. The seat retainer having a hollow interior with an interior surface. The seat is disposed within the hollow interior of the seat retainer to control fluid flow through the pressure regulator. The seat may be adapted to slidingly engage the interior surface of the seat retainer during movement of the seat to dampen the movement of the seat. The seat may be elastically deformed by the seating surface when seated against the seating surface. The pressure regulator may have a stem extending through the seat retainer orifice and affixed to the solid body of the seat to move the seat in response to movement of a diaphragm. switch based upon the expiration of the predetermined time. 6. The fuel injector control circuit of claim 5, wherein said at least one coil comprises a plurality of coils. 7. The fuel injector control circuit of claim 5, wherein said predetermined time starts based upon current through said switch exceeding a predetermined value. 8. A method for controlling a fuel injector including the steps of: (a) Activating a coil to control a fuel injector; (b) Deactivating the coil to control the fuel injector; and (c) Switching from said step (b) to said step (a) based upon the lapse of a predetermined period. 9. The method of claim 8, further including the steps of: (d) Measuring current through the coil; (e) Comparing the current measured in said step (d) to a threshold current; and (f) Beginning the predetermined time period based upon said step (c). 10. The method of claim 9, further including the step of: (g) Opening a switch based upon said step (e). 11. The method of claim 10, further including the step of: (h) Closing the switch after the lapse of the predetermined time period. 12. A fuel injector control circuit comprising: at least one coil for controlling the operation of a fuel injector; at least one high side gate selectively connecting the at least one coil to a ground, and a timing circuit switching a selectively activated one of the at least one high side gate and the at least one low side gate based upon the expiration of a predetermined time and being activated based upon a current through the selectively activated gate reaching a predetermined threshold. 13. The fuel injector control circuit of claim 12 wherein the selectively activated gate is the at least one low side gate. 14. The fuel injector control circuit of claim 13 wherein the at least one low side gate is opened based upon the current reaching the predetermined threshold. 15. The fuel injector control circuit of claim 14 wherein the at least one low side gate is closed by the timing circuit based upon the expiration of a predetermined time. 16. The fuel injector control circuit of claim 12 wherein the selectively activated gate is opened based upon the current reaching the predetermined threshold. 17. The fuel injector control circuit of claim 16 wherein the selectively activated gate is closed by the timing circuit based upon the expiration of a predetermined time. 18. The fuel injector control circuit of claim 17 wherein the at least one coil comprises a plurality of coils, the at least one high side gate comprises a plurality of high side gates and the at least one low side gate comprises a plurality of low side gates, and wherein each of the plurality of high side gates selectively connects more than one of the plurality of coils to the power supply. 19. The fuel injector control circuit of claim 18 wherein each of the plurality of low side gates selectively connects more than one of the plurality of coils to ground. 20. The fuel injector control circuit of claim 1 wherein the switch is switched off based upon current through the switch reaching a predetermined threshold.