Blue Star has been investing significantly in research and development of new technologies and products for several years now and these patents are a result of the company’s endeavour in this arena.

Blue Star Limited announces that the company has been awarded with three more patents by the Office of the Controller General of Patents, Designs & Trade Marks, Ministry of Commerce and Industry, Government of India.

Commenting on the development, B Thiagarajan, Managing Director, Blue Star Limited said, “Over the past 76 years of our existence, Blue Star has been making significant indigenous offerings thereby propelling the growth and development of the Indian AC&R industry. These new inventions are a step forward in this direction. Besides, I am proud that in our own way, Blue Star is contributing towards the larger good of the country by making India self-reliant or Atmanirbhar. Our patent application pipeline is huge and I am confident of receiving many more patents in the coming years backed by our dedicated team of experts.”

The new patent, firstly, is for ‘System and Method for Maintaining Optimum Condensing Temperature at Low Load in Heating Mode in VRF systems’. The invention is related to a VRF system operating in heating mode which helps resolve the issue of a fall in the condensing temperature encountered by the system while in heating mode, which could result in cold air draft from Indoor Units (IDUs).

It further comprises of embedding a special feature in the VRF controller that has the capability to detect the fall in the temperature and proportionally increase the compressor’s output in order to maintain an optimum level of condensing temperature. This mechanism maintains sufficient supply of warm air at adequate temperature thereby ensuring thermal comfort in heating mode. Blue Star’s inverter VRF systems already have this feature implemented in them.

Secondly, a patent for, ‘Refrigerant Recovery in Multi-Air Conditioner System’. The invention, as the name goes, helps in detecting shortage of refrigerant and ensuring its recovery when the load on the system is very low in a Multi-Air Conditioner VRF system where multiple IDUs are connected to multiple Outdoor Units (ODUs), in a single refrigeration system. Blue Star, through this invention, has developed a special feature that has the capability to detect the shortage of refrigerant. The Company has already implemented this feature in its existing inverter VRF systems.

The third patent is for ‘Method and System for Maintaining Uninterrupted Cooling Operation by VRF Systems at High Pressure’. This reveals the method of avoiding high pressure tripping in a Digital VRF (DVRF) system. At high ambient condition, sudden loading of the digital compressor can result in tripping on high discharge pressure. With the present invention, Blue Star provides a unique system operation feature to overcome the high pressure tripping issue. Blue Star’s DVRF systems have this feature implemented in them.

Blue Star has been investing significantly in research and development of new technologies and products for several years now and these patents are a result of the company’s endeavour in this arena. The Company has applied for more than 40 patents for innovation across its various product categories and is optimistic of being granted several more patents in the near future.