Pump
A pump includes a pump chamber in which a rotor with gates is supported so that it can rotate, an electric motor for driving the rotor, a muffler that encloses a volume in the area of the pump chamber, wherein the volume is in active connection with an outlet port and a front muffler that is arranged within the muffler. To improve the service life and reliability of the pump in a vehicle with minimal installation expense, it is proposed that a filter is integrated into the front muffler.
1. A pump, comprising:
a pump chamber,
a rotor with gates supported in said pump chamber so that said rotor can rotate,
an electric motor operable for driving the rotor,
a muffler that encloses a volume in the area of the pump chamber, wherein the volume is in active connection with an outlet port,
a front muffler that is arranged within the muffler,
a filter integrated into the front muffler,
wherein the front muffler is formed in a ring with a conical frustum-shaped lateral surface molded on the inside, and
wherein the filter is fastened in an annular groove formed on an end of the lateral surface with a smaller diameter.
2. The pump according to claim 1 , wherein the front muffler is made from an elastic material.
3. The pump according to claim 1 , wherein the front muffler is held in a clamping manner on an annular web of the muffler.
4. A pump, comprising:
a pump chamber,
a rotor with gates supported in said pump chamber so that said rotor can rotate,
an electric motor operable for driving the rotor,
a muffler that encloses a volume in the area of the pump chamber, wherein the volume is in active connection with an outlet port,
a front muffler that is arranged within the muffler,
a filter integrated into the front muffler, and
wherein the front muffler is held in a clamping manner on an annular web of the muffler.
5. The pump according to claim 4 , wherein the front muffler is formed in a ring with a conical frustum-shaped lateral surface molded on the inside.
6. The pump according to claim 4 , wherein the front muffler is made from an elastic material.
7. The pump according to claim 5 , wherein the filter is fastened in an annular groove formed on an end of the lateral surface with a smaller diameter.