When the convex part of the cam turns over, under the action of the spring force, the plunger moves downward, and the space above the plunger (called the pump oil chamber) generates a vacuum. When the upper end of the plunger puts the plunger on the inlet After the oil hole is opened, the diesel oil......
Read MoreHistorically, short selling Tesla is often a bad bet, but BNEF's analyst team believes that there may be a new leader in electric vehicle sales worldwide in 2023. In the past two years, BYD has been rapidly expanding its model lineup, global layout and manufacturing capacity. If plug-in hybrid vehic......
Read More