Yuchai 6K Heavy Machine Unveiled International Advanced Engine

What does Yuchai's 12-liter or more heavy-duty diesel engine look like?

Before Yuchai’s 2010 business conference, I am afraid that few outsiders really saw it. Before there are many circulated versions of it, such as high-end positioning, displacement of 13 liters, mainly for Chery heavy truck supporting......

On January 13, at the business conference, this engine of gold displacement finally saw the sky.

Bold move

A bold product strategy gave birth to Yuchai's YC6K engine.

"Since the start of this project two or three years ago, we have positioned it as an international engine." Zhong Yuwei, deputy general manager and chief planner of Yuchai Machinery Co., Ltd. told the reporter, "The conceptual design and overall layout of the aircraft We were handed over to Austrian AVL company. At that time, AVL had just completed the development of a multinational heavy-duty machine. We hope to use its development and design experience, 'for my use'." In the performance analysis and mechanical development, jade Chai's approach is to use "I" as the main reference for ALV's data and experience.

The reporter learned that the YC6K currently has 12.2 liters of 6K-12 and 13 liters of 6K-13 displacement models. Its benchmarking product has crossed all domestic engines of the same displacement in one step, pointing to Mercedes-Benz trucks at the time of development. DD13 heavy duty diesel engine launched in North America. The previous Yuchai's highest displacement commercial vehicle engine was the YC6M, a 10-liter heavy-duty diesel engine.

Without the 11-liter engine at this stage, Yuchai’s move was very bold. After all, multinational brands such as Mercedes-Benz, Mann MAN, Volvo and Scania have already accumulated and accumulated hundreds of years of technology. Compared with them, the overall technical level of domestic commercial vehicle engine manufacturers still has a big gap.

"In order to keep pace with international standards, we have applied many advanced technologies to this engine, such as high pressure common rail + SCR + JOCOBS cylinder brake system in the United States, four-valve overhead camshaft design, and rare domestic integrated cylinder heads. First cooling the cylinder head and then cooling the cylinder's new cooling concept, as well as a modular symmetry cylinder." Zhong Yuwei told reporters that this engine has passed a cumulative 40,000 hours bench test and one million kilometers of vehicle road verification.

According to reports, in the next 2 to 3 years, YC6K will mainly support Chery heavy trucks. Yuchai, CIMC and Chery will also set up a joint venture at the end of 2009 to produce 6K engines in Wuhu. “Cheerful heavy trucks are also high-end routes, and the competition brands are mainly joint-venture heavy trucks such as GAC Hino. We hope to use Chery as an excellent vehicle partner to try to establish a new supporting model and promote the 6K gold displacement model. Mature and market-oriented."

Prudent strategy

The product is positioned in avant-garde and bold. Yuchai tends to be cautious in the supplier's choice and goal planning.

Zhong Yuwei told reporters that YC6K is scheduled to be put into production in small batches at the end of 2010. The target next year is 3,000 units, and volume production will be achieved in 2012, reaching 12,000 units.

Yuchai’s prudence is not unrelated to its “small pilots” in the high-end heavy machine market. At the same time, in order to ensure the stability of the quality and durability of the products, Yuchai has adopted two sets of supplier systems. "One set is mainly based on foreign suppliers, and the other set is based on domestic domestic suppliers. At the end of this year, it will first put into operation the models using foreign supporting systems."

Zhong Yuwei stated that on the one hand, in order to overcome the shortcomings such as the lack of timely supply from foreign suppliers, Yuchai’s requirement is that the market and after-sales response should be quick. It is necessary to introduce the latest technology into joint ventures or wholly-owned factories in China. The price must have continued competitiveness.

On the other hand, Yuchai is also helping local suppliers to continuously improve their technical level and on-site management capabilities. “We began to assist local suppliers in improving on-site management when conducting performance tests on the YC6K. However, the industry conditions of the domestic component factories have actually restricted the improvement of the overall level of the machine. Small scale and scattered industries have resulted in many parts factories not having Ability to carry out the latest technology development, almost every time we take the technical drawings of new products to find matching suppliers. In this market environment, we must rely on the strength of foreign advanced suppliers."

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