Green Power and Ensa Engineering have obtained patents related to constant flow booster valve pumps. The constant flow booster valve pump achieves steady material flow delivery, extending equipment lifespan.

On March 28, news reported that the National Intellectual Property Administration’s information shows that Green Power Environmental Protection Group Co., Ltd. and Beijing Ensa Engineering Technology Co., Ltd. have applied for a patent called “A Constant Flow Lift Valve Pump and Its Logical Control Method,” with the authorization announcement number CN120027058B, and the authorization announcement date is March 27, 2026. The application publication number is CN120027058A, the application number is CN202510473382.8, the application publication date is March 27, 2026, the application date is April 15, 2025, and the inventors are Xi Qiang, Cheng Suning, Zhang Wei, Xu Hongda, Li Yinlin, Fu Lei, Zhang Jinbo, and Zhao Qinghua. The patent agency is Beijing Ruibo Xingyuan Intellectual Property Agency Co., Ltd., and the patent agent is Cai Aina. The classification numbers are F04B53/10, F04B53/14, F04B53/16, F04B49/00, and F04B51/00.

The patent abstract shows that the invention provides a constant flow lift valve pump and its logical control method, belonging to the field of valve pump technology. The constant flow lift valve pump includes: a base, where the upper end of the base is fixed with a left valve pump assembly, a right valve pump assembly, and a water tank; the left valve pump assembly and right valve pump assembly are respectively embedded and penetrate through the middle of the water tank. The left and right hydraulic cylinders operate alternately, and the pistons controlled by the two hydraulic cylinders have a certain period of synchronous action during the extension phase, keeping the material in a feeding state, thus ensuring that there is always material being conveyed forward in the pipeline, which belongs to constant flow delivery. This also prevents the delivery pressure from frequently fluctuating, which can enhance the service life of the hydraulic components and the entire equipment of the hydraulic station.

Green Power was established on March 29, 2000, and was listed on the Shanghai Stock Exchange on June 11, 2018, with its registered and office location in Shenzhen, Guangdong Province. It is a leading enterprise in the domestic waste incineration power generation field, with its core business being waste incineration power generation, possessing a differentiated advantage across the entire industrial chain.

Green Power belongs to the Shenwan industry category of Environmental Protection - Environmental Governance - Solid Waste Treatment, involving concept sectors such as green power, biomass energy, and waste power generation. Its main business is investing, constructing, operating, maintaining, and providing technical consulting for waste incineration power plants that use waste incineration technology to treat municipal solid waste.

In 2025, Green Power’s operating revenue was 3.534 billion yuan, ranking 3rd in the industry, with the first place being GaoNeng Environment at 14.732 billion yuan and the second place Yongxing Co., Ltd. at 4.287 billion yuan, the industry average being 5.576 billion yuan, and the median being 3.534 billion yuan. The revenue from the main business of solid waste treatment was 3.534 billion yuan, accounting for 100.00%. The net profit was 605 million yuan, also ranking 3rd in the industry, with the first place being GaoNeng Environment at 1.039 billion yuan and the second place Yongxing Co., Ltd. at 877 million yuan, the industry average being 320 million yuan, and the median being 605 million yuan.

Recently, the patent situation of Green Power Environmental Protection Group Co., Ltd. is as follows:

According to Tianyancha data, Beijing Ensa Engineering Technology Co., Ltd. was established on September 3, 2009, with Qin Peng as the legal representative. The industry it belongs to is specialized equipment manufacturing, and its enterprise scale is small, with a registered capital of 39,999,960 yuan, and paid-in capital of 39,999,960 yuan. Its registered address is 01, 1st Floor, Building 4, No. 19, Ke Chuang 3rd Street, Beijing Economic and Technological Development Zone. Beijing Ensa Engineering Technology Co., Ltd. has invested in 11 enterprises, participated in bidding projects 100 times, and has 15 trademark information and 95 patent information in terms of property clues, with 12 administrative licenses.

Recently, the patent situation of Beijing Ensa Engineering Technology Co., Ltd. is as follows: