Generator, heat exchange device for shaft system thereof, and wind turbine

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11982260
APP PUB NO 20210324836A1
SERIAL NO

17272065

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

A generator, a heat exchange device for a shaft system thereof, and a wind turbine are provided. The heat exchange device includes a flexible cavity for allowing a cooling medium to input. The flexible cavity is located on an inner wall of the generator rotation shaft, and is cooled by a generator bearing in the generator shaft system. After the cooling medium is injected into the flexible cavity, the cooling environment can be created at the inner wall position of the generator rotation shaft so as to provide a heat-dissipation channel for the generator bearing enclosed between the generator rotation shaft and a generator fixed shaft, thereby achieving good cooling effect.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
BEIJING GOLDWIND SCIENCE & CREATION WINDPOWER EQUIPMENT CO LTD100176 19 KANGDING STREET BEIJING ECONOMIC AND TECHNOLOGICAL DEVELOPMENT ZONE DAXING DISTRICT BEIJING BEIJING CITY BEIJING CITY 100176

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ma, Shengjun Beijing, CN 37 59

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
3.5 Year Payment $1600.00 $800.00 $400.00 Nov 14, 2027
7.5 Year Payment $3600.00 $1800.00 $900.00 Nov 14, 2031
11.5 Year Payment $7400.00 $3700.00 $1850.00 Nov 14, 2035
Fee Large entity fee small entity fee micro entity fee
Surcharge - 3.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00