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公开(公告)号：WO2022069398A1
公开(公告)日：2022-04-07
申请号：PCT/EP2021/076475
申请日：2021-09-27
Applicant: VHIT S. P. A. SOCIETA UNIPERSONAL
Inventor： MARTELLO, Fabio , CADEDDU, Leonardo , CALONGHI, Andrea
Abstract: Hydraulic braking device (10) for a vehicle, comprising a master cylinder (70) and a servo-device. A hydraulic piston (72) of the master cylinder (70) defines a pressure chamber (71) which is adapted to contain a pressurized liquid and in which a control pressure is generated that is transmitted to one or more brake(s) of the vehicle. A plunger (41) of the servo-device defines a first chamber (42) and a second chamber (43) of the servo-device, said chambers being associated with communication means (44, 45, 46) adapted to establish, when the braking device (10) is in a rest condition, a hydraulic communication between the first chamber(42) and the second chamber (43) and to interrupt said communication when the braking device (10) is actuated.
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公开(公告)号：WO2020254432A1
公开(公告)日：2020-12-24
申请号：PCT/EP2020/066805
申请日：2020-06-17
Applicant: VHIT S. P. A. SOCIETA UNIPERSONAL
Inventor： CILIBERTI, Patrizia Domenica , FILIPPI, Nicola , CADEDDU, Leonardo , TERRANOVA, Lillo
IPC: F04C2/344 , F04C18/344
Abstract: Dry displacement machine acting on an operating fluid passing therethrough and including: - a rotary rotor (3), - a stator (2) that forms a housing chamber (20) for the rotor (3), - a first discharge (21) for a fluid from said chamber (20), - a first check valve (4) designed to close said first discharge (21), - a second discharge (22) for the fluid from said chamber (20), - a second check valve (40) designed to close said second discharge (22), - a cap (5) arranged downstream of the first and second discharges (21, 22) that forces the fluid coming out of said chamber (20) to effect a plurality of changes of direction, - a cover (8), said cap (5) being interposed between the cover (8) and the chamber (20), The cap (5) has a first path (6) and a second path (60) that are separate from one another and that are arranged respectively downstream of the first and second discharges (21, 22) and lead away from said chamber (20) towards said cover (8), said first and second paths (6, 60) conveying the fluid coming out of the first and second valves (4, 40) respectively.
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公开(公告)号：WO2021028291A1
公开(公告)日：2021-02-18
申请号：PCT/EP2020/072053
申请日：2020-08-05
Applicant: VHIT S. P. A. SOCIETA UNIPERSONAL
Inventor： PASQUALI, Stefania , BELA, Simona , RUFRANO, Vito , CADEDDU, Leonardo
Abstract: Rotor comprising a vane carrier (21), a transmission coupling (40), configured for transmitting a drive torque to the vane carrier (21), and at least one vane, wherein the vane carrier (21) comprises a seat (25) having a blind bottom (26), and wherein the transmission coupling (40) comprises an engaging end (41) configured for being inserted into the seat (25) of the vane carrier (21) and having a first face (46) oriented towards the bottom (26) of the seat (25) of the vane carrier (21) and a second face (47) oriented in a direction opposite to that of the first face (46). The rotor further comprises a first support element (70; 170) comprising a base (71; 171) resting on the second face (47) of the engaging end (41), and at least one wing (75, 76; 175, 176) arranged between a respective first thrust surface (49) of the engaging end (41) and a corresponding first abutment surface (32) of the seat (25), said first abutment surface facing the first thrust surface. The rotor further comprises a second support element (60) comprising a base (61) arranged between the bottom (26) of the seat (25) of the vane carrier (21) and the first face (46) of the engaging end (41) of the transmission coupling (40).
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公开(公告)号：WO2021028213A1
公开(公告)日：2021-02-18
申请号：PCT/EP2020/071220
申请日：2020-07-28
Applicant: VHIT S. P. A. SOCIETA UNIPERSONAL
Inventor： PASQUALI, Stefania , BELA, Simona , RUFRANO, Vito , CADEDDU, Leonardo
Abstract: Rotor comprising a vane carrier (21), a transmission coupling (40), configured for transmitting a drive torque to the vane carrier (21), and at least one vane; wherein the vane carrier (21) comprises a seat (25), and wherein the transmission coupling (40) comprises an engaging end (41) configured for being inserted into the seat (25) of the vane carrier (21) and having a first face (46) oriented towards the seat (25) of the vane carrier (21), and a second face (47) oriented in a direction opposite to that of the first face (46). The rotor further comprises a first support element (170) comprising a base (171) resting on the second face (47) of said engaging end (41), two first wings (175, 176) arranged between respective first thrust surfaces (49) of the engaging end (41) and corresponding first abutment surfaces (32) of the seat (25), said first abutment surfaces (32) facing the first thrust surfaces (49), and two second wings (177, 178) arranged between respective second thrust surfaces (50) of the engaging end (41) ) and corresponding second abutment surfaces (33) of the seat (25), said second abutment surfaces (33) facing the second thrust surfaces (50). The base (171) of the first support element (170) comprises two radial portions (173a, 173b) in which a corresponding radial slot (179) is provided dividing said two radial portions (173a, 173b) into a first sub-branch (181), from which a respective wing of said two first wings (175, 176) extends, and a second sub-branch (182), from which a respective wing of said two second wings (177, 178) extends.
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