Fuel additive metering system
First Claim
1. A system for dispensing an additive into a flowing fluid comprising:
- a) a sensing device for determining the flow rate of fluid entering the system and for generating a signal in dependence upon said fluid flow rate;
b) means for conditioning said signal to produce a proportional speed of a variable speed motor assembly;
c) a metering pump driven by said motor assembly for dispensing an additive into the fluid flow at a rate proportionate to the speed of said motor assembly; and
d) means for controlling the rate of increase in said fluid flow rate to permit said signal conditioning means and said metering pump to respond to said variations within an effective response time.
4 Assignments
0 Petitions
Accused Products
Abstract
A fuel additive system is disclosed which comprises a sensing device for determining the flow rate of fuel into the system and for generating a signal in dependence upon the fuel flow rate, a control system for conditioning the signal to produce a proportional speed of a variable speed motor, a metering pump driven by the motor for dispensing an additive into the fuel flow at a rate proportionate to the speed of the motor, and a valving device for controlling the rate of increase in the fuel flow rate to permit the control system and the metering pump to respond to the variations within an effective response time to substantially maintain a predetermined ratio between the fuel flow rate and the additive dispensing rate.
54 Citations
25 Claims
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1. A system for dispensing an additive into a flowing fluid comprising:
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a) a sensing device for determining the flow rate of fluid entering the system and for generating a signal in dependence upon said fluid flow rate; b) means for conditioning said signal to produce a proportional speed of a variable speed motor assembly; c) a metering pump driven by said motor assembly for dispensing an additive into the fluid flow at a rate proportionate to the speed of said motor assembly; and d) means for controlling the rate of increase in said fluid flow rate to permit said signal conditioning means and said metering pump to respond to said variations within an effective response time. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A system for blending an additive into a fuel comprising:
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a) a sensing device for determining the flow rate of fuel entering the system and for generating a signal in dependence upon said fuel flow rate; b) means for conditioning said signal to produce a proportional speed of a variable speed motor assembly; c) a metering pump driven by said motor assembly for dispensing an additive into the fuel flow at an additive dispensing rate proportionate to the speed of said motor assembly; and d) means for controlling the rate of increase in said fuel flow rate to permit said signal conditioning means and said metering pump to respond to said variations within an effective response time to substantially maintain a predetermined ratio between the fuel flow rate and the additive dispensing rate. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21)
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22. A self-contained fuel additive system for a depot refueling station comprising:
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a) outlet means from the refueling station; b) a flow meter for determining the flow rate of fuel exiting the outlet means; c) a transmitter operatively associated with said flow meter for generating a signal in dependence upon said fuel flow rate; d) a signal conditioner for converting said signal generated by said transmitter to produce a proportional speed of a variable speed motor assembly; e) a metering pump driven by said motor assembly for dispensing an additive into the fuel flow at a rate proportionate to the speed of said motor assembly; and f) a control valve disposed adjacent said flow meter for controlling the rate of increase in said fuel flow rate as fuel exits the outlet means. - View Dependent Claims (23, 24, 25)
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Specification