Supply system for a liquid

摘要

A supply system for liquid including a liquid tank and a liquid supply line forming a passage for the liquid from the tank to an outlet of the supply system. The supply line includes at least one part configured to form at least one gas pocket communicating with the passage to take up a change of volume of the liquid in event of freezing. Such a system can be used in a selective catalytic reduction system (SCR).

主权项

1. A supply system for a liquid, comprising:
a liquid tank, a liquid supply line comprising a passage for the liquid from the tank to an outlet of the supply system, a mechanism to reduce pressure in the supply line, and a mechanism to return liquid present in the supply line to the tank, wherein the supply line includes at least one part containing at least one gas pocket including an opening communicating with the passage, the opening allowing a front side of the liquid to move forward in the gas pocket in an event of freezing to compress a gas contained in the gas pocket to take up a change of volume of the liquid.