Recently, Jichai Power Plant received 10 utility model patents from the State Intellectual Property Office. The 10 patents are: gas supply system using diesel and natural gas as fuel engines, low-concentration gas engine control system, internal-combustion engine block cleaning system, diesel engine packaging box, fixed conduit nozzle valve-controlled hydraulic coupler speed controller, and liquid Force coupler anti-vehicle gearbox, hydraulic coupler gear box power unit for pumping unit, hydraulic coupler gear box for driving dredge sand pump, fixed conduit nozzle valve-controlled hydraulic coupler gear box, A variable speed hydraulic coupler gearbox that is used to drive a cooling fan of an internal combustion engine. In addition, five invention patents, such as the connecting rod big hole finishing process, a hydraulic coupler transmission box power unit for hydraulic pumping units, and anti-vehicle transmission box for hydraulic coupler, entered the substantive examination stage. This is the first time that Jichai has applied for a patent to the State Intellectual Property Office and submitted a total of 10 utility model applications, all of which were authorized and the success rate of patent applications was 100%. Although the number of patents is not large, it has achieved a leap from patentless to qualitative. Exhaust Tips,Exhaust Muffler,Auto Parts Diesel Generator Co., Ltd. , http://www.nsexhaustsystem.com