Innovative Science Research Foundation Circulation may please be restricted to prospective companies only ISRF Proprietary

About ISRF  Innovative Science Research Foundation (ISRF) is a partnership firm registered in India  ISRF creates simple innovative solutions to improve day to day life  ISRF has innovations ranging from simple kitchenware to aerospace products.  We at ISRF generate and incubate ideas, claim IPR and share with prospective companies  ISRF has more than 30 potential ideas which include new designs, products, business structure etc.  The team ISRF consists of well qualified engineers, scientists, academicians and students to think out of the box.  ISRF provides a complete package solution considering requirements, marketability and cost thus ensuring potential business growth of ISRF customers ISRF Proprietary

ENERGY EFFICIENT GAS STOVE Final patent Application No. 2717/CHE/2013 & Provisional Patent Application /2016 ISRF Proprietary - Patent Pending -

Gas Stove - Present Design  The rated efficiency of gas stove is for maximum burner flow condition – “Design Point”  All other flow conditions, gas stove operates at lower efficiency – “Off Design”  Major reason for Low efficiency is due to heat transfer losses.  Achievable efficiency also depends on bottom size of vessel  Gas stove operate more time in “Off Design”  Existing gas stove designs needs a major design change ISRF Proprietary - Patent Pending -

Principle and Mechanism Principle: There is a well known scientific fact that reducing the distance to an optimum level between source and sink improves the heat transfer Mechanism: Requires a height adjustable Mechanism which should maintain the optimum distance between vessel bottom and burner top ISRF Proprietary - Patent Pending -

Energy Efficient Gas Stove  Incorporated burner height adjustment mechanism in gas stove  Efficiency improvement achieved by reducing the heat loss in different modes of operation of gas stove  Upto 12% efficiency improvement is achievable  Four different configuration have been patented  Prototypes have been made and tested ISRF Proprietary - Patent Pending -

Energy Efficient Gas Stove – Different Mechanisms  Patent application covers the following mechanisms: – Gear mechanism – Pin-Slot mechanism – Linkage mechanism – Linking of gas knob with burner height adjustment – Safety design in case of inadvertent movement of gas knob  Few more combinations of mechanisms are also covered in Patent ISRF Proprietary - Patent Pending -

Gear Mechanism Gear Mechanism – Gas Knob Coupled With Burner Height Adjustment

Design Considerations ISRF Proprietary - Patent Pending -  Linking of gas knob with burner height adjustment knob  Fine burner height adjustment movement  Reduced cost  Ruggedness  Life  Ease of Use  Compactness Aesthetics  Optimization  Reduced Part Count  Materials  Ease of assembly

Schematic of Gear Mechanism ISRF Proprietary - Patent Pending -

Right Side View Eye Cam shaft Sleeve over Extended bolt washer

Exploded View washer Eye Cam shaft Sleeve Bolt Box Front bush Driven Gear Fuel Rail Driver Gear washer Nut Mixing Tube Cover Ring Knob Gear Guard Bolt Knob

Business Potential  Minimum 5 crores LPG connection is announced for next three years in budget  Applicable to Gas stove manufacturers for existing connections  Unique in market  Innovation motivated by energy (LPG) saving objective  Competitive advantage ISRF Proprietary - Patent Pending -