Pierburg Pump Technology Gmbh

Gilles Simon

Arnaud Fournier

Laurent Finidori

Jean-Michel Durand

Pascal Georges

Pierre Reininger

Gilles Rybicki

Jerome Kremer

Gilles Magnier

Eric Majchrzak

Gabriel Mele

Bertrand Elie

Florent Randoulet

Maxime Lefert

Sebastien Bruant

Emmanuel Dattoli

Jérome Ritz

A controllable mechanical motor vehicle coolant pump includes a rotatable drive shaft co-rotatably connected with a coolant pump wheel, a transverse housing surface extending transversely with respect to and surrounding the drive shaft, a cylindrical inner slider support surface radially surrounding the drive shaft, a control slider which is axially shiftable with respect to the coolant pump wheel so as to control an effective discharge flow cross-section thereof, and a push-out pressure chamber. The push-out pressure chamber is arranged between a slider bottom wall of the control slider and the transverse housing surface, is defined at one axial side by the transverse housing surface and radially inwardly by the cylindrical inner slider support surface, and is pressurized to generate a push-out push force which pushes the slider bottom wall toward the coolant pump wheel. A first housing element defines the transverse housing surface and the inner slider support surface.

Controllable mechanical motor vehicle coolant pump

A coolant pump includes an impeller pump wheel, a pump housing defining an outlet volute, and an outlet valve arrangement. The pump housing comprises an outlet volute housing which defines a first outlet channel comprising a valve opening. The valve opening is defined by a valve seat which defines a valve seat plane and a symmetry plane. The symmetry plane is arranged in the middle of and rectangular to the valve seat plane. The outlet valve arrangement is in the first outlet channel and comprises a valve flap which opens/closes the valve opening. The valve flap comprises a flap seat corresponding to the valve seat. The valve flap rotates around a pivot axis parallel to the symmetry plane and having an eccentricity from the symmetry plane which is between 1/20 and 1/1 of a distance of the pivot axis to the valve seat plane when the valve flap is open.

Mechanical coolant pump

A coolant pump includes an outlet volute comprising a pivot axis, an impeller pump, a housing, and an outlet valve arrangement. The housing comprises an outlet volute housing defining the outlet volute and comprises a volute housing wall comprising a recess, and a first outlet channel comprising a valve opening. The outlet valve arrangement is disposed in the first outlet channel and comprises a valve body which opens or closes the valve opening. The valve body comprises a circle segment body comprising a proximal surface and a maximum outside radius. The circle segment body is rotated around the pivot axis. The proximal surface is distant from the pivot axis by an offset distance which is at least &#xbc; of the maximum outside radius. The recess houses the circle segment body in the closed valve position. A lateral distance of the pivot axis to the volute housing wall is approximately equal to the offset distance.

A mechanical coolant pump for an internal combustion engine includes a pump rotor wheel comprising rotor blades configured to pump a coolant radially outward. A non-rotating ring of pump stator blades is configured to encircle the pump rotor wheel. At least one of the pump stator blades is a static blade. At least one of the pump stator blades is a pivotable blade configured to pivot about a pivot axis arranged within the pivotable blade.

An adjustable mechanical coolant pump for an internal combustion engine includes a pump rotor wheel comprising an axial inlet. The pump rotor wheel is configured to pump a coolant radially outwardly. Variable pump stator blades are arranged so as to pivot radially outwardly at a circle concentrically with the pump rotor wheel. A control ring is configured to pivot the variable pump stator blades when the control ring is rotated. An actuator is configured to rotate the control ring so as to pivot the variable pump stator blades between an open position and a closed position. A pump housing body is configured to support the variable pump stator blades and the control ring. A separate static blade holding frame is mounted to the pump housing body. The variable pump stator blades and the control ring are captively mounted at the separate static blade holding frame.

Adjustable mechanical coolant pump

A mechanical coolant pump for an internal combustion engine includes an outlet channel comprising an outlet valve and an outlet channel wall with a passing slit. An impeller is configured to pump a coolant into the outlet channel. The outlet valve comprises a shiftable flat valve plate configured to be shiftable in a transversal plane of the outlet channel through the passing slit of the outlet channel wall.

Growing community of inventors

Montois la Montagne, France

Gilles Simon