Fuel system accumulator

摘要: An accumulator for a no-return fuel system vehicle engine with injectors. The has housing flexible diaphragm between first and second chambers spring in one chamber yieldably closing the to reduce volume of other chamber. One inlet that allows into which accommodates expansion by increasing against bias spring. Preferably, an over-pressure valve opens when reached its maximum allow flow from bypass relation outlet communicating directly tank. In another embodiment, communication rail continuously communicates air intake manifold so pressure drop across injectors is maintained more constant as varies.