Abstract: A variable displacement rotary vane pump. The pump has a pump body, a rotor with vanes that rotates inside the pump body around a rotation axis, an oscillating stator arranged in an eccentric position around the rotor, a fulcrum for the rotation of the oscillating stator with respect to the pump body, and adjusting means for adjusting the displacement of the pump. The adjusting means act on the oscillating stator to move it with respect to the rotor and the pump body. The fulcrum is integrally formed with the oscillating stator and is housed in a recess formed in the pump body. The pump has a sliding element between the fulcrum and the recess. The sliding element is at least partially free to rotate within the recess.

Abstract: A variable displacement rotary vane pump. The pump has a pump body, a rotor with vanes that rotates inside the pump body around a rotation axis, an oscillating stator arranged in an eccentric position around the rotor, a fulcrum for the rotation of the oscillating stator with respect to the pump body, and adjusting means for adjusting the displacement of the pump. The adjusting means act on the oscillating stator to move it with respect to the rotor and the pump body. The fulcrum is integrally formed with the oscillating stator and is housed in a recess formed in the pump body. The pump has a sliding element between the fulcrum and the recess. The sliding element is at least partially free to rotate within the recess.

Abstract: The invention relates to a vacuum pump (1) for vehicle motors, comprising a stator (2), a chamber defined within said stator (2) and at least one vane rotatably mounted inside said chamber so as to generate a depression. The stator (2) comprises inlet openings for air and oil, and a first discharge outlet (30) on which a first one-way valve operates (35). According to the invention, the stator (2) further comprises a second discharge outlet (50) separate from said first discharge outlet (30) and a second one-way valve (55) operating on said second discharge outlet (50). In this manner it is possible to separate the air discharge from the oil discharge, both physically and operationally. The invention further relates to a one-way valve for said vacuum pump. Such valve comprises a blade body (60) having a first blade which defines a first one-way valve (35) and at least one second blade which defines at least one second one-way valve (55).

Abstract: The invention relates to a vacuum pump (1) for vehicle motors, comprising a stator (2), a chamber defined within said stator (2) and at least one vane rotatably mounted inside said chamber so as to generate a depression. The stator (2) comprises inlet openings for air and oil, and a first discharge outlet (30) on which a first one-way valve operates (35). According to the invention, the stator (2) further comprises a second discharge outlet (50) separate from said first discharge outlet (30) and a second one-way valve (55) operating on said second discharge outlet (50). In this manner it is possible to separate the air discharge from the oil discharge, both physically and operationally. The invention further relates to a one-way valve for said vacuum pump. Such valve comprises a blade body (60) having a first blade which defines a first one-way valve (35) and at least one second blade which defines at least one second one-way valve (55).