Rotation of the drive shaft drives the cam disc synchronously via a coupling, while plunger springs continuously press the distribution plungers against the cam disc surface. The end-face cam profiles of the cam disc engage with roller mechanisms, driving the distribution plungers to reciprocate axially during rotation to achieve diesel boost. Simultaneously, the cam disc drives the distribution plungers to rotate synchronously via drive pins, completing fuel distribution to different cylinders. Taking a four-cylinder engine as an example, the cam disc features four cam profiles spaced at 90° intervals. Each 90° rotation drives the plunger to complete one cycle of fuel intake, compression, and distribution. A full rotation thus achieves cyclic fuel supply to all four cylinders.

CAM DISK are widely used in diesel engines equipped with VE distributor pumps. This product is suitable for commercial vehicles such as light trucks and pickup trucks, as well as equipment including diesel generators and small construction machinery. Currently, the product is exported in bulk to countries including Brazil, the Philippines, and Costa Rica. It is compatible with diesel powertrains from multiple brands, including Chaochai and Isuzu, meeting diverse procurement needs such as replacement parts for small and medium repair shops and inventory stocking for parts wholesalers.