A high pressure fuel pump 4 in which the fuel is pressurised by a cam-driven plunger 9 and cylinder arrangement. The pump includes a depressurisation path 41 and valve 40 which allow the release of pressure from the cylinder.

Beijing Hongtong Chaozhou Commerce & Trade Co. , Ltd. is a private enterprise, founded in 2015, located in the Xianghe County Economic Development Zone, adjacent to Beijing and Tianjin, convenient transportation. The company mainly produces EPB electronic parking brake system, electronic pumps, intake manifold and other automotive parts. The company has rich experience in R & D and production, with advanced production equipment and modern testing equipment, strong technical force. At present, the company's main customers are: Audi, Volkswagen and other major automotive enterprises and Auto Parts Enterprises, the company has become one of the major domestic auto parts manufacturers.