Power conditioning and energy storage device using hydraulic-pneumatic sequentially fired pulse forming networks

Patent metadata

Field	Value
Publication number	US-2016130986-A1
Application number	US-201514927043-A
Country	US
Kind code	A1
Filing date	Oct 29, 2015
Priority date	Nov 3, 2014
Publication date	May 12, 2016
Grant date	—

Abstract

The present invention includes a mechanical energy storage device and method of making and using the same comprising: two or more pneumatic or hydraulic capacitors or accumulators, each of them connected to at least one hydraulic or pneumatic exhaust manifold and a hydraulic or pneumatic intake manifold through exhaust and intake valves, respectively; at least one hydraulic fluid or pneumatic reservoir in fluid communication with the hydraulic or pneumatic exhaust manifold via a hydraulic or pneumatic motor connected to an output device, and in fluid communication with the hydraulic or pneumatic intake manifold via hydraulic pump or pneumatic compressor driven by a source of variable power; and a governor or control valve disposed between the hydraulic or pneumatic exhaust manifold and the hydraulic or pneumatic motor connected to the output device. The use of compressible gas, pneumatic, and air are interchangeable for the purposes of this device.

First claim

What is claimed is:

1 . A mechanical energy storage device comprising:
two or more pneumatic or hydraulic capacitors or accumulators, each of them connected to at least one hydraulic or pneumatic exhaust manifold and a hydraulic or pneumatic intake manifold through exhaust and intake valves, respectively; at least one hydraulic fluid or pneumatic reservoir in fluid communication with the hydraulic or pneumatic exhaust manifold via a hydraulic or pneumatic motor connected to an output device, and in fluid communication with the hydraulic or pneumatic intake manifold via hydraulic pump or pneumatic compressor driven by a source of variable power; and a governor or control valve disposed between the hydraulic or pneumatic exhaust manifold and the hydraulic or pneumatic motor connected to the output device.

2 . The device of claim 1 , wherein the two or more pneumatic or hydraulic capacitors or accumulators form a mechanical pulse forming network by linking pneumatic or hydraulic capacitors or accumulators together that are fired in sequence.

3 . The device of claim 1 , wherein the gas confined in the pneumatic or hydraulic capacitors or accumulators acts as a spring when compressed by the hydraulic fluid or gas being pumped into the pneumatic or hydraulic capacitors or accumulators.

4 . The device of claim 1 , wherein the pneumatic or hydraulic fluid is forced out of the pneumatic or hydraulic capacitors or accumulators through the outlet valves to drive the hydraulic or pneumatic motor.

5 . The device of claim 1 , wherein the at least one of the hydraulic or pneumatic exhaust manifold, the hydraulic or pneumatic intake manifold, the hydraulic fluid or pneumatic reservoir, the hydraulic or pneumatic motor, the hydraulic pump or pneumatic compressor of the air or hydraulic capacitors or accumulators are connected by high pressure lines.

6 . The device of claim 1 , wherein the hydraulic fluid reservoir is open to the atmosphere.

7 . The device of claim 1 , wherein the at least one of the hydraulic or pneumatic exhaust manifold, the hydraulic or pneumatic intake manifold, the hydraulic fluid or pneumatic reservoir, the hydraulic or pneumatic motor, the hydraulic pump or pneumatic compressor of the pneumatic or hydraulic capacitors or accumulators, the exhaust or intake valves, or the governor or control valve, are plastic.

8 . The device of claim 1 , wherein the output device driven by the hydraulic or pneumatic motor under the control of the governor or control valve provides a high quality power pulse to load.

9 . The device of claim 1 , wherein the source of variable power that drives the hydraulic pump or pneumatic compressor is at least one of solar, wind, wave, stored potential energy, springs, pendulums, stored water, or weights.

10 . The device of claim 1 , wherein the output device is a generator, a compressor, a pump, a shaft, a drive train, a chain, a rotary compressor or generator, a reciprocating compressor or generator, a centrifugal compressor or generator, or an axial compressor or generator.

11 . The device of claim 1 , wherein the at least one of the governor, the exhaust and the intake valves are passively controlled.

12 . A method of converting stored mechanical energy into a high quality power pulse to load comprising:
connecting two or more pneumatic or hydraulic capacitors or accumulators, each of them connected to at least one hydraulic or pneumatic exhaust manifold and a hydraulic or pneumatic intake manifold through exhaust and intake valves, respectively; providing at least one hydraulic fluid or pneumatic reservoir in fluid communication with the hydraulic or pneumatic exhaust manifold via a hydraulic or pneumatic motor connected to an output device, and in fluid communication with the hydraulic or pneumatic intake manifold via hydraulic pump or pneumatic compressor driven by a source of variable power; and controlling the high quality power pulse to load by a governor or control valve disposed between the hydraulic or pneumatic exhaust manifold and the hydraulic or pneumatic motor connected to the output device.

13 . The method of claim 12 , wherein the two or more pneumatic or hydraulic capacitors or accumulators form a mechanical pulse forming network by linking pneumatic or hydraulic capacitors or accumulators together that are fired in sequence.

14 . The method of claim 12 , wherein the gas confined in pneumatic or hydraulic capacitors or accumulators acts as a spring when compressed by the hydraulic fluid or gas being pumped into the pneumatic or hydraulic capacitors or accumulators.

15 . The method of claim 12 , wherein the gas or hydraulic fluid is forced out of the pneumatic or hydraulic capacitors or accumulators through the outlet valves to drive the hydraulic or pneumatic motor.

16 . The method of claim 12 , wherein the at least one of the hydraulic or pneumatic exhaust manifold, the hydraulic or pneumatic intake manifold, the hydraulic fluid or pneumatic reservoir, the hydraulic or pneumatic motor, the hydraulic pump or pneumatic compressor of the pneumatic or hydraulic capacitors or accumulators are connected by high pressure lines.

17 . The method of claim 12 , wherein the hydraulic fluid reservoir is open to the atmosphere.

18 . The method of claim 12 , wherein the at least one of the hydraulic or pneumatic exhaust manifold, the hydraulic or pneumatic intake manifold, the hydraulic fluid or pneumatic reservoir, the hydraulic or pneumatic motor, the hydraulic pump or pneumatic compressor of the pneumatic or hydraulic capacitors or accumulators, the exhaust or intake valves, or the governor or control valve, are plastic.

19 . The method of claim 12 , wherein the output device driven by the hydraulic or pneumatic motor under the control of the governor or control valve provides a high quality power pulse to load.

20 . The method of claim 12 , wherein the source of variable power that drives the hydraulic pump or pneumatic compressor is at least one of solar, wind, wave, stored potential energy, springs, pendulums, stored water, or weights.

21 . The method of claim 12 , wherein the output device is a generator, a compressor, a pump, a shaft, a drive train, a chain, a rotary compressor or generator, a reciprocating compressor or generator, a centrifugal compressor or generator, or an axial compressor or generator.

22 . The method of claim 12 , wherein the at least one of the governor, the exhaust and the intake valves are passively controlled.

23 . A mechanical energy storage device comprising:
two or more pneumatic or hydraulic capacitors or accumulators, each of them connected to at least one hydraulic or pneumatic exhaust manifold and a hydraulic or pneumatic intake manifold through exhaust and intake valves, respectively; at least one hydraulic fluid or pneumatic reservoir in fluid communication with the hydraulic or pneumatic exhaust manifold via a hydraulic or pneumatic motor connected to an output device, and in fluid communication with the hydraulic or pneumatic intake manifold via hydraulic pump or pneumatic compressor driven by a source of variable power; and a governor or control valve disposed between the hydraulic or pneumatic exhaust manifold and the hydraulic or pneumatic motor connected to the output device, wherein the governor, the exhaust and the intake valves are actively or passively controlled, wherein the two or more pneumatic or hydraulic capacitors or accumulator

Assignees

• Univ Texas

Inventors

• Campos Joaquin M
• Longoria Raul G
• Crawford Mark T

Classifications

• H02J15/20

  using storage of pneumatic energy, e.g. compressed air energy storage [CAES] · CPC title

• F15B2201/411

  having valve means · CPC title

• F15B2201/305

  without separating means · CPC title

• F15B1/26

  Supply reservoir or sump assemblies · CPC title

• F15B1/027 Primary

  having accumulator charging devices · CPC title