US 11,742,663 B2 · Integrated energy conversion, transfer and storage system

Abstract

An integrated hybrid energy recovery and storage system for recovering and storing energy from multiple energy sources is disclosed. The system includes an accumulator unit having a high pressure accumulator and a low pressure accumulator. At least one piston is mounted for reciprocation in the high pressure accumulator. The accumulator unit is configured to receive, store, and transfer energy from the hydraulic fluid to the energy storage media. The system further includes two or more rotational directional control valves, in which at least one rotational directional control valve is positioned on each side of the accumulator unit. Each rotational directional control valve includes multiple ports. The system also includes two or more variable displacement hydraulic rotational units. At least one variable displacement hydraulic rotational unit is positioned adjacent each of the rotational directional control valves.

Claims20

Dependent claims

A hydraulic accumulator system, comprising:

an outer housing;
a first open chamber within the outer housing;
a second open chamber within the outer housing;
an inner dividing wall that separates the first open chamber from the second open chamber;
a conduit that extends through the inner dividing wall along a length of the hydraulic accumulator system;
a first port allowing hydraulic access to the first open chamber;
a second port allowing hydraulic access to the second open chamber;
a third port allowing hydraulic access to the first open chamber;
and
a fourth port allowing hydraulic access to the second open chamber.

7 more elements

Dependencies are inferred from the claim text.

Facts

Application

17/459,023Filed 27 Aug 2021 · division

Priority

RO a 2017 0114320 Dec 2017

Published

US 2022/0060022 A124 Feb 2022

Granted

29 Aug 2023

Term ends

Not estimatedThe source records don’t support an estimate.

Classification40 codes

H02J 3/28
Circuit arrangements for AC mains or AC distribution networks: arrangements for balancing of the load in networks by storage of energy
B60K 6/12
Prime-movers comprising combustion engines and mechanical or fluid energy storing means: by means of a chargeable fluidic accumulator
B60T 1/10
Acting by retarding wheels: by utilising wheel movement for accumulating energy, e.g. driving air compressors
F15B 1/024
Installations or systems with accumulators: used as a supplementary power source, e.g. to store energy in idle periods to balance pump load

Family

Application62/498,348Us provisional application · filed 21 Dec 2016

Application62/498,347Us provisional application · filed 21 Dec 2016

Application62/606,511Us provisional application · filed 26 Sep 2017

Application62/577,630Us provisional application · filed 26 Oct 2017

Application62/580,360Us provisional application · filed 1 Nov 2017

PCT/US2017/068018Parent of this division · filed 21 Dec 2017

US 2022/0060022 A1Pre-grant publication · published 24 Feb 2022

Application16/333,543Parent of this division

US 11,128,136 B2Parent of this division

US 2019/0305558 A1Published application

US 11,742,663 B2This patent

From the US filing history. Foreign family members aren’t listed.

Integrated energy conversion, transfer and storage system

Life of this patent

Integrated energy conversion, transfer and storage system

Life of this patent

Abstract

Claims20