Apparatus for measuring the work performed by a gas compressor
First Claim
1. Apparatus for measuring the work performed by a gas compressor, said apparatus comprising:
- said apparatus being operatively connected to an engine by a rotable component, said engine being powered by the same gas being compressed by the compressor,a first pressure sensor means for measuring the suction pressure of gas entering said compressor and generating a first signal representative of said suction pressure;
a second pressure sensor means for measuring the discharge pressure of gas leaving said compressor and generating a second signal representative of said discharge pressure;
means for generating a third signal representative of the speed of rotation of the rotable component of the compressor connected to said engine during a predetermined time interval;
a calculating means arranged to receive said first, second and third signals and to calculate therefrom a fourth signal representative of the work performed by said compressor during said predetermined time interval;
a photovoltaic power source capable of generating electrical energy upon exposure to light;
means for connecting the power source to a power supply means for supplying said electrical energy to said first and second pressure sensor means and to said calculating means; and
means for controlling the supply of power to the first and second pressure sensor means, said power control means being arranged to supply power to said first and second pressure sensor means for only a powered portion of each predetermined time interval and to leave said first and second pressure sensor means unpowered for the remainder of each predetermined time interval, said calculating means being arranged to read the values of said first and second signals only during the powered portion of each predetermined time interval.
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Accused Products
Abstract
An apparatus for measuring the work produced by a compressor comprises pressure sensors for measuring the suction and discharge pressures of the compressor and a device for measuring the operating speed of the compressor. The apparatus further comprises a data processor for receiving signals representative of the suction and discharge pressures of the compressor and its operating speed, and generating a signal representative of the work performed by the compressor during a predetermined time interval. Desirably, the data processor is designed to integrate the work output of the compressor over a series of time intervals to generate a cumulative horsepower-hour reading for the compressor over an extended period of time.
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Citations
6 Claims
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1. Apparatus for measuring the work performed by a gas compressor, said apparatus comprising:
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said apparatus being operatively connected to an engine by a rotable component, said engine being powered by the same gas being compressed by the compressor, a first pressure sensor means for measuring the suction pressure of gas entering said compressor and generating a first signal representative of said suction pressure; a second pressure sensor means for measuring the discharge pressure of gas leaving said compressor and generating a second signal representative of said discharge pressure; means for generating a third signal representative of the speed of rotation of the rotable component of the compressor connected to said engine during a predetermined time interval; a calculating means arranged to receive said first, second and third signals and to calculate therefrom a fourth signal representative of the work performed by said compressor during said predetermined time interval; a photovoltaic power source capable of generating electrical energy upon exposure to light;
means for connecting the power source to a power supply means for supplying said electrical energy to said first and second pressure sensor means and to said calculating means; andmeans for controlling the supply of power to the first and second pressure sensor means, said power control means being arranged to supply power to said first and second pressure sensor means for only a powered portion of each predetermined time interval and to leave said first and second pressure sensor means unpowered for the remainder of each predetermined time interval, said calculating means being arranged to read the values of said first and second signals only during the powered portion of each predetermined time interval. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification