Patents by Inventor Mario Antonio Morselli
Mario Antonio Morselli has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11913481Abstract: The present invention concerns an attenuation device (1) of the fluid flow pulsation along a duct of a hydraulic circuit connected with a hydraulic machine, comprising at least an attenuation module (3) passed through by a pass-through duct (5) configured to be placed in fluid communication with said duct of said hydraulic circuit. In particular, in said attenuation module (3) a first duct (7) is obtained having an opened first end (70) in fluid communication with said pass-through duct (5), and a closed second end, said first duct (7) extending along a curved line comprising a plurality of curved sections, said first duct (7) being adapted to attenuate the pulsation of said fluid flow along said duct of said hydraulic circuit to reduce the vibrations generated by said pulsation of said fluid flow.Type: GrantFiled: June 27, 2019Date of Patent: February 27, 2024Assignee: STEM NUMERICAL ENGINEERING S.R.L.Inventor: Mario Antonio Morselli
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Patent number: 11493055Abstract: Radial pump (1) comprising a stator (3) comprising an external stator (30) and an internal stator (32) defining an annular cavity (11) therebetween, and an impeller (5) rotatably housed between said stators (30; 32). The suction (7) is fashioned at a central portion of the internal stator (32), whereas the delivery (9) is fashioned at a radially external peripheral portion of the external stator (30). The impeller (5) comprises a plurality of deformable vanes (50, 51, 52) movable inside the annular cavity (11) and in slidable contact with the internal surface of the external stator (30). In every position of the impeller (5) with respect to the stator (3) at least two deformable vanes (51) are sealed in the portion of the annular cavity (11) between the suction (7) and the delivery (9) to isolate the delivery (9) from the suction (7).Type: GrantFiled: September 6, 2019Date of Patent: November 8, 2022Assignee: STEM NUMERICAL ENGINEERING S.R.L.Inventor: Mario Antonio Morselli
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Patent number: 11338380Abstract: A rotating cutting tool to cut asymmetrical teeth in a gearwheel in which each tooth (21) has an active flank (A) with a convex profile meshing with the profile of a tooth of an opposing gearwheel meshing with the gearwheel and a secondary concave flank (S), provided with teeth (11) on a generally helical path which extends from one side to the other with respect to a median cross-section (M-M) of the tool which is intended to be intersected by the radius Rp of the gearwheel which is at right angles to the axis of rotation of the tool working on the gearwheel to cut its teeth. The helical teeth have a first flank (CA) which is intended to cut the said active flank (A) of the gearwheel teeth and a second flank (CS) intended to cut the secondary flank (S), the pitch (P1) between the first flank (CA) of the helical teeth being constant and the pitch (P2) of the second flank of the teeth being smaller than the pitch (P1).Type: GrantFiled: October 11, 2016Date of Patent: May 24, 2022Assignee: Danfoss Power Solutions S.R.L.Inventor: Mario Antonio Morselli
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Publication number: 20210324871Abstract: Radial pump (1) comprising a stator (3) comprising an external stator (30) and an internal stator (32) defining an annular cavity (11) therebetween, and an impeller (5) rotatably housed between said stators (30; 32). The suction (7) is fashioned at a central portion of the internal stator (32), whereas the delivery (9) is fashioned at a radially external peripheral portion of the external stator (30). The impeller (5) comprises a plurality of deformable vanes (50, 51, 52) movable inside the annular cavity (11) and in slidable contact with the internal surface of the external stator (30). In every position of the impeller (5) with respect to the stator (3) at least two deformable vanes (51) are sealed in the portion of the annular cavity (11) between the suction (7) and the delivery (9) to isolate the delivery (9) from the suction (7).Type: ApplicationFiled: September 6, 2019Publication date: October 21, 2021Applicant: STEM NUMERICAL ENGINEERING S.R.L.Inventor: Mario Antonio MORSELLI
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Publication number: 20210164502Abstract: The present invention concerns an attenuation device (1) of the fluid flow pulsation along a duct of a hydraulic circuit connected with a hydraulic machine, comprising at least an attenuation module (3) passed through by a pass-through duct (5) configured to be placed in fluid communication with said duct of said hydraulic circuit. In particular, in said attenuation module (3) a first duct (7) is obtained having an opened first end (70) in fluid communication with said pass-through duct (5), and a closed second end, said first duct (7) extending along a curved line comprising a plurality of curved sections, said first duct (7) being adapted to attenuate the pulsation of said fluid flow along said duct of said hydraulic circuit to reduce the vibrations generated by said pulsation of said fluid flow.Type: ApplicationFiled: June 27, 2019Publication date: June 3, 2021Applicant: STEM NUMERICAL ENGINEERING S.R.L.Inventor: Mario Antonio MORSELLI
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Patent number: 10612543Abstract: A geared positive-displacement machine (10), comprising a housing (11) provided with a suction port and with a discharge port, a pair of gearwheels (14, 15) that are housed and supported by respective shafts (16, 18) for the rotation in a space inside the housing (11) and in fluid communication with the suction port and the discharge port, wherein the gearwheels (14, 15) mesh with each other and have parallel or coinciding axes and a first wheel (14) thereof is driving and a second wheel (15) is driven, a pair of containment bodies (19, 20) for axially containing the wheels (14, 15), said containment bodies (19, 20) being associated with the housing (11) and each comprise a first face (19a, 20a) that faces the pair of gearwheels (14, 15) and a second face (19b, 20b) that is axially opposite with respect to the first face (19a, 20a), and, for each of the two wheels (14, 15), a plurality of rolling bodies (21) that form a crown and that are freely housed in an annular seat (22) that is coaxial to the respectiveType: GrantFiled: March 31, 2016Date of Patent: April 7, 2020Assignee: SETTIMA MECCANICA S.R.L.Inventor: Mario Antonio Morselli
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Publication number: 20190032654Abstract: A geared positive-displacement machine (10), comprising a housing (11) provided with a suction port and with a discharge port, a pair of gearwheels (14, 15) that are housed and supported by respective shafts (16, 18) for the rotation in a space inside the housing (11) and in fluid communication with the suction port and the discharge port, wherein the gearwheels (14, 15) mesh with each other and have parallel or coinciding axes and a first wheel (14) thereof is driving and a second wheel (15) is driven, a pair of containment bodies (19, 20) for axially containing the wheels (14, 15), said containment bodies (19, 20) being associated with the housing (11) and each comprise a first face (19a, 20a) that faces the pair of gearwheels (14, 15) and a second face (19b, 20b) that is axially opposite with respect to the first face (19a, 20a), and, for each of the two wheels (14, 15), a plurality of rolling bodies (21) that form a crown and that are freely housed in an annular seat (22) that is coaxial to the respectiveType: ApplicationFiled: March 31, 2016Publication date: January 31, 2019Inventor: Mario Antonio Morselli
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Publication number: 20180281088Abstract: A rotating cutting tool to cut asymmetrical teeth in a gearwheel in which each tooth (21) has an active flank (A) with a convex profile meshing with the profile of a tooth of an opposing gearwheel meshing with the gearwheel and a secondary concave flank (S), provided with teeth (11) on a generally helical path which extends from one side to the other with respect to a median cross-section (M-M) of the tool which is intended to be intersected by the radius Rp of the gearwheel which is at right angles to the axis of rotation of the tool working on the gearwheel to cut its teeth. The helical teeth have a first flank (CA) which is intended to cut the said active flank (A) of the gearwheel teeth and a second flank (CS) intended to cut the secondary flank (S), the pitch (P1) between the first flank (CA) of the helical teeth being constant and the pitch (P2) of the second flank of the teeth being smaller than the pitch (P1).Type: ApplicationFiled: October 11, 2016Publication date: October 4, 2018Inventor: Mario Antonio Morselli
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Patent number: 10024317Abstract: A gear wheel for gear pumps/motors including a plurality of asymmetrical teeth, each tooth including a driving side with a convex shape and mating with a corresponding convex side of a counter-wheel and a discharge side defined, in most of its length, as a cavity of a convex profile. The discharge side is configured so that the radius passing through a tip of the teeth is substantially at least tangent to the discharge side, or intersects the discharge side.Type: GrantFiled: December 16, 2013Date of Patent: July 17, 2018Assignee: DANFOSS POWER SOLUTIONS S.r.l.Inventor: Mario Antonio Morselli
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Publication number: 20170114864Abstract: A gear transmission including: a plurality of gear wheels having a different diameter meshing with each other, at least one first driving gear wheel activated in rotation about its own axis, and at least one second driven gear wheel meshing with the first gear wheel, teeth being asymmetrical, with active sides conjugate with one another inactive sides of the teeth of the wheels not being conjugated with one another, and the inactive side is configured so that the radius passing by a tip of the teeth is substantially tangent to the inactive side or intersects the inactive side.Type: ApplicationFiled: June 16, 2015Publication date: April 27, 2017Inventor: Mario Antonio MORSELLI
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Patent number: 9464632Abstract: The invention relates to a double-helical gear rotary positive displacement pump including a pump housing rotatably supporting at least a driving shaft and at least a driven shaft, at least a first toothing and a second toothing being associated to the driving shaft and at least a third toothing and a fourth toothing being associated to the driven shaft. The toothings have individually a helical profile that allows their mutual herringbone meshing. Three of toothings are rigidly connected to their respective shafts. The fourth toothing, or other suitable one, is idle on the shaft and axially constrained.Type: GrantFiled: July 19, 2012Date of Patent: October 11, 2016Assignee: SETTIMA MECCANICA S.R.L.Inventor: Mario Antonio Morselli
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Patent number: 9404366Abstract: A gear wheel comprising a plurality of helical teeth, each helical tooth of the gear wheel having a tooth profile meshing with semi-encapsulation in a geared hydraulic apparatus. Each tooth having a profile which falls within a band of tolerance of +? 1/15 of the depth of a nominal tooth defined by a spline function interpolating a plurality of node points having pre-established coordinates {X,Y} with their origin on the gear wheel center.Type: GrantFiled: May 27, 2014Date of Patent: August 2, 2016Assignees: Settima Meccanica S.r.l.Inventor: Mario Antonio Morselli
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Publication number: 20150330387Abstract: A gear wheel for gear pumps/motors including a plurality of asymmetrical teeth, each tooth including a driving side with a convex shape and mating with a corresponding convex side of a counter-wheel and a discharge side defined, in most of its length, as a cavity of a convex profile. The discharge side is configured so that the radius passing through a tip of the teeth is substantially at least tangent to the discharge side, or intersects the discharge side.Type: ApplicationFiled: December 16, 2013Publication date: November 19, 2015Applicant: DONFOSS POWER SOLUTIONS S.R.L.Inventor: Mario Antonio MORSELLI
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Publication number: 20140271314Abstract: A gear wheel comprising a plurality of helical teeth, each helical tooth of the gear wheel having a tooth profile meshing with semi-encapsulation in a geared hydraulic apparatus. Each tooth having a profile which falls within a band of tolerance of +? 1/15 of the depth of a nominal tooth defined by a spline function interpolating a plurality of node points having pre-established coordinates {X,Y} with their origin on the gear wheel center.Type: ApplicationFiled: May 27, 2014Publication date: September 18, 2014Applicants: Settima Meccanica S.r.l.Inventor: Mario Antonio Morselli
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Publication number: 20140212316Abstract: The invention relates to a double-helical gear rotary positive displacement pump comprising a pump housing (14) rotatably supporting at least a driving shaft (2) and at least a driven shaft (3), at least a first toothing (4) and a second toothing (5) being associated to said driving shaft (2) and at least a third toothing (6) and a fourth toothing (7) being associated to said driven shaft (2). The toothings (4, 5, 6, 7) have individually a helical profile that allows their mutual herringbone meshing. Three of toothings (4, 5, 6) are rigidly connected to their respective shafts (2, 3): the fourth toothing (7), or other suitable one, is idle on the shaft and axially constrained.Type: ApplicationFiled: July 19, 2012Publication date: July 31, 2014Inventor: Mario Antonio Morselli
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Patent number: 8556609Abstract: An improved geared hydraulic apparatus, comprising a pair of meshing gearwheels, mounted to be reciprocally rotatable in a casing between an inlet side and an outlet side for a fluid having, in use, a substantially transverse flow with respect to the axes of rotation of the gearwheels. The meshing gearwheels create, during their reciprocal rotation, progressive meshing configurations between respective co-operating teeth. In at least one of said progressive meshing configurations is defined, in at least one cross-section of the gearwheels, at least one closed area between respective fluid entrapment teeth. The closed area decreases until it is substantially cancelled out at and around at least one other, separate progressive meshing configuration between the aforesaid respective co-operating teeth.Type: GrantFiled: March 14, 2008Date of Patent: October 15, 2013Assignees: Settima Meccanica S.r.lInventor: Mario Antonio Morselli
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Publication number: 20110103993Abstract: A geared hydraulic apparatus comprises a pair of gear wheels which mesh with each other with semi-encapsulation. Each gear wheel has a plurality of teeth with a profile which falls within a band of tolerance of ±15, more preferably ±20, and even more preferably ±30 with respect to the height of the tooth, with respect to a profile similar to a profile defined by a predetermined spline function passing through a plurality of nodal points having pre-established coordinates {X,Y} with origin on the rotational axis.Type: ApplicationFiled: October 28, 2010Publication date: May 5, 2011Applicants: Settima Meccanica S.r.l., Mario Antonio MORSELLIInventor: Mario Antonio Morselli
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Publication number: 20100104463Abstract: An improved geared hydraulic apparatus, comprising a pair of meshing gearwheels, mounted to be reciprocally rotatable in a casing between an inlet side and an outlet side for a fluid having, in use, a substantially transverse flow with respect to the axes of rotation of the gearwheels. The meshing gearwheels create, during their reciprocal rotation, progressive meshing configurations between respective co-operating teeth. In at least one of said progressive meshing configurations is defined, in at least one cross-section of the gearwheels, at least one closed area between respective fluid entrapment teeth. The closed area decreases until it is substantially cancelled out at and around at least one other, separate progressive meshing configuration between the aforesaid respective co-operating teeth.Type: ApplicationFiled: March 14, 2008Publication date: April 29, 2010Applicant: SETTIMA MECCANICA S.R.L.Inventor: Mario Antonio Morselli
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Patent number: 6887055Abstract: A positive-displacement rotary pump comprising a pair of meshing gears (13, 14) or rotors, consisting of a driving gear and a driven gear, contained in a shell (10) having an output opening and an intake opening for a fluid. The gears (13, 14) include shafts (23, 24) which are supported by bushings (15a, 15b) having two faces (17a, 17b) which are subjected, in use, to pressures which bring about an axial load on the bushing itself, wherein the resultant of the axial loads (S?, S?) on the two bushings has a predetermined direction so as to move the bushings (15a, 15b) and the gears (13, 14) as a whole into close abutment with a predetermined reference plane (VI—VI).Type: GrantFiled: October 25, 2002Date of Patent: May 3, 2005Inventor: Mario Antonio Morselli
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Patent number: 6769891Abstract: A rotary positive-displacement pump comprises two gear wheels which mesh with each other without encapsulation. Each gear wheel has a plurality of teeth with a profile which falls within a band of tolerance of ±{fraction (1/20)}th of the depth of the tooth with respect to a theoretical profile similar to a profile defined by a natural spline function passing through a plurality of nodal points having pre-established coordinates {X, Y}.Type: GrantFiled: June 3, 2003Date of Patent: August 3, 2004Inventor: Mario Antonio Morselli