发明名称 |
Method for producing a kinetic energy storage system |
摘要 |
A flywheel energy storage system incorporates various embodiments in design and processing to achieve a very high ratio of energy stored per unit cost. The system uses a high-strength steel rotor rotating in a vacuum envelope. The rotor has a geometry that ensures high yield strength throughout its cross-section using various low-cost quenched and tempered alloy steels. Low-cost is also achieved by forging the rotor in a single piece with integral shafts. A high energy density is achieved with adequate safety margins through a pre-conditioning treatment. The bearing and suspension system utilizes an electromagnet that off-loads the rotor allowing for the use of low-cost, conventional rolling contact bearings over an operating lifetime of several years. |
申请公布号 |
US9136741(B2) |
申请公布日期 |
2015.09.15 |
申请号 |
US201414322749 |
申请日期 |
2014.07.02 |
申请人 |
QUANTUM ENERGY STORAGE CORPORATION |
发明人 |
Dharan Cheruvari Karthik Hari |
分类号 |
H02K7/09;H02K7/02;B21J1/06;B21K1/28;C21D8/00;C21D9/00;H02K15/02;H02K5/24;H02K7/00;H02K7/08;H02K11/00;B21K1/32;H02K16/00 |
主分类号 |
H02K7/09 |
代理机构 |
Foley & Lardner LLP |
代理人 |
Foley & Lardner LLP |
主权项 |
1. A flywheel device comprising:
a sealed housing section; a rotor disposed within the housing section; a first bearing housing comprising lower contact bearings and a second bearing housing comprising upper contact bearings disposed between the rotor and a plate; and an off-loading electromagnet configured to provide a vertical off-loading force that lifts the rotor against the upper contact bearings in a vertical direction and off of the lower contact bearings. |
地址 |
Poway CA US |