Acoustically Optimised Fluid Line

A fluid line configured to transport fluid between a pre-filter and a pump, the fluid line comprising:

• a pump connection with a pump connection opening configured to connect to one of an intake opening and a discharge opening of the pump;
• a base of the pump connection arranged opposite the pump connection opening having an upper side, which faces toward the pump connection opening, and a lower side which faces away from the pump connection opening;
• a duct, through which fluid can pass, configured to connect the pump connection to the pre-filter, the duct having a first end opening into the pump connection and a second end opposite the first end configured to connect to the pre-filter;
• and
• a damping region arranged in the base of the pump connection configured to damp vibrations radiated in a direction of the base in the fluid.

A fuel filter unit comprising:

• a prefilter;
• and
• a fluid line configured to transport fluid between the pre-filter and a pump, the fluid line comprising:
• a pump connection with a pump connection opening configured to connect to one of an intake opening and a discharge opening of the pump;
• a base of the pump connection arranged opposite the pump connection opening having an upper side, which faces toward the pump connection opening, and a lower side which faces away from the pump connection opening;
• a duct, through which fluid can pass, configured to connect the pump connection to the pre-filter, the duct having a first end opening into the pump connection and a second end opposite the first end configured to connect to the pre-filter;
• and
• a damping region arranged in the base of the pump connection configured to damp vibrations radiated in a direction of the base in the fluid.

A fuel pump comprising:

• a fluid line configured to transport fluid between a pre-filter and a pump, the fluid line comprising:
• a pump connection with a pump connection opening configured to connect to one of an intake opening and a discharge opening of the pump;
• a base of the pump connection arranged opposite the pump connection opening having an upper side, which faces toward the pump connection opening, and a lower side which faces away from the pump connection opening;
• a duct, through which fluid can pass, configured to connect the pump connection to the pre-filter, the duct having a first end opening into the pump connection and a second end opposite the first end configured to connect to the pre-filter;
• and
• a damping region arranged in the base of the pump connection configured to damp vibrations radiated in a direction of the base in the fluid;
• and
• a fuel pump connected to the pump connection of the fluid line.

A fuel delivery comprising:

• a fuel pump;
• a pre-filter;
• and
• a fluid line configured to transport fluid between the pre-filter and the pump, the fluid line comprising:
• a pump connection with a pump connection opening configured to connect to one of an intake opening and a discharge opening of the pump;
• a base of the pump connection arranged opposite the pump connection opening having an upper side, which faces toward the pump connection opening, and a lower side which faces away from the pump connection opening;
• a duct, through which fluid can pass, configured to connect the pump connection to the pre-filter, the duct having a first end opening into the pump connection and a second end opposite the first end configured to connect to the pre-filter;
• and
• a damping region arranged in the base of the pump connection configured to damp vibrations radiated in a direction of the base in the fluid,
• wherein the fuel pump is connected by one of the intake and the discharge opening to the pump connection opening of the fluid line and the pre-filter is connected the second end of the duct of the fluid line which is situated opposite the first end of the duct that opens out into the pump connection of the fluid line.