Tutaev Motor Plant PTC, a subsidiary of KAMAZ in Yaroslavl Oblast, jointly with JSC Gomselmash (Belarus) continues realizing a project to make engines for heavy-duty farm machinery.
In 2019-2021, design documentation was developed and agreed upon with a client, a prototype engine 8807.10 was made for the most powerful forage harvester KVK-8060 in the model range of JSC Gomselmash.
The harvester engine 8807.10 is notable for increased capacity – 653 hp. This figure is provided by cubic capacity raised to 18.47 l, the application of two turbocharges and cast-iron cylinder heads. Also, design features may include an electronic control system, an original crankshaft balancing scheme.
In May, the harvester with the engine 8807.10 underwent in-plant bench tests, and in June, the most important stage of operation tests started on the fields of the large agro-industrial enterprise USP SlavMol, Gomel Region, Belarus.
During field operation, the testers will have to reveal the so-called “adverse beginnings” – problems and reserves for higher efficiency of the unit which are impossible to foresee or detect neither with the help of the latest 3D modeling system, nor at the test-bench of the machine-assembly department.
The results of the first week of testing are optimistic. The experts of the service center of OOO Avtobis (Minsk) and the supplier of an electronic control system OOO Electrotechnical Plant ELZA (Yaroslavl) carried out an additional engine control module setting. According to feedback from USP SlavMol, the new TMP engine is not inferior to a European rival used previously as part of the same vehicle in terms of fuel consumption and power. On the plus side is serviceability of new cast-iron cylinder heads.
The engineers of JSC Gomselmash offered and already started realizing several measures to improve the design of harvester motor systems which will enable to realize the fullest potential of the engine made by Tutaev Motor Plant. At first, the harvester KVK-8060 will carry out seasonal works picking up permanent grass swathes. In late summer, there will be the severest tests in harvesting corn that will last till November.
According to the results of the trial operation, a decision will be taken on series deliveries of new TMP engines of enhanced capacity to JSC Gomselmash to substitute motors imported from Europe and the USA before.