Patents by Inventor Philippe Germain
Philippe Germain 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).
-
Motor vehicle wheelset anti-roll device with actuating means operated by a hydraulic control circuit
Patent number: 11279200Abstract: An anti-roll device comprises a bar coupled to two links, a hydraulic control circuit (CC) and actuating means (MAC) comprising a casing (CR) defining the chamber (CH) subdivided into a first (P1) and a second (P2) part by a piston (PI), and comprising first (ES1) and second (ES2) inlets-outlets communicating with the first (P1) and second (P2) parts and an intermediate inlet-outlet (ES1) communicating with the first part (P1) or with the second part (P2) depending on the position of the piston (PI). These actuating means (MAC) adopt a disengaged state or block state in whatever position of the piston (PI), according to the accessibility status of the first (ES1) and second (ES2) inlets-outlets and of the intermediate inlet-outlet (ES1). The control circuit (CC) controls the accessibility statuses according to the commands received.Type: GrantFiled: August 27, 2018Date of Patent: March 22, 2022Assignees: PSA AUTOMOBILES SA, BWI FRANCE S.A.S.U.Inventors: Alan Cavarec, Philippe Germain, Bruno Perrée -
Patent number: 11021034Abstract: An anti-roll device equips an axle assembly of a motor vehicle and comprises two connecting rods of which one comprises a part of coupling means comprising: a housing subdivided into two parts by a piston and comprising two inlets-outlets communicating with the two parts and an intermediate inlet-outlet communicating with at least one of the parts depending on the position of the piston, a fluid reservoir supplying a conduit coupled to the intermediate inlet-outlet, two non-return means coupled to the inlets-outlets and to the conduit, and an electrically operated valve coupled to the inlets-outlets and placed either in an open state ensuring a connection between the parts and the fluid reservoir via the intermediate inlet-outlet, or in a closed state allowing fluid discharge out of the housing only through the intermediate inlet-outlet.Type: GrantFiled: May 23, 2018Date of Patent: June 1, 2021Assignees: PSA AUTOMOBILES SA, BWI FRANCE S.A.S.U.Inventors: Alan Cavarec, Philippe Germain, Bruno Perrée
-
MOTOR VEHICLE WHEELSET ANTI-ROLL DEVICE WITH ACTUATING MEANS OPERATED BY A HYDRAULIC CONTROL CIRCUIT
Publication number: 20200269649Abstract: An anti-roll device comprises a bar coupled to two links, a hydraulic control circuit (CC) and actuating means (MAC) comprising a casing (CR) defining the chamber (CH) subdivided into a first (P1) and a second (P2) part by a piston (PI), and comprising first (ES1) and second (ES2) inlets-outlets communicating with the first (P1) and second (P2) parts and an intermediate inlet-outlet (ES1) communicating with the first part (P1) or with the second part (P2) depending on the position of the piston (PI). These actuating means (MAC) adopt a disengaged state or block state in whatever position of the piston (PI), according to the accessibility status of the first (ES1) and second (ES2) inlets-outlets and of the intermediate inlet-outlet (ES1). The control circuit (CC) controls the accessibility statuses according to the commands received.Type: ApplicationFiled: August 27, 2018Publication date: August 27, 2020Inventors: Alan CAVAREC, Philippe GERMAIN, Bruno PERRÉE -
Publication number: 20200156432Abstract: An anti-roll device equips an axle assembly of a motor vehicle and comprises two connecting rods of which one comprises a part of coupling means comprising: a housing subdivided into two parts by a piston and comprising two inlets-outlets communicating with the two parts and an intermediate inlet-outlet communicating with at least one of the parts depending on the position of the piston, a fluid reservoir supplying a conduit coupled to the intermediate inlet-outlet, two non-return means coupled to the inlets-outlets and to the conduit, and an electrically operated valve coupled to the inlets-outlets and placed either in an open state ensuring a connection between the parts and the fluid reservoir via the intermediate inlet-outlet, or in a closed state allowing fluid discharge out of the housing only through the intermediate inlet-outlet.Type: ApplicationFiled: May 23, 2018Publication date: May 21, 2020Inventors: Alan CAVAREC, Philippe GERMAIN, Bruno PERRÉE
-
Patent number: 10627164Abstract: A framework for handling blades, comprising a bottom wall carrying a plurality of intermeshed longitudinal and transverse partitions forming a grid defining a plurality of housings each able to receive a blade. The framework comprises rods for supporting and holding the blades remote from the base wall and said longitudinal and transverse partitions, said rods crossing the longitudinal and transverse partitions and extending into the housings and being produced, at least externally, from a thermally insulating material.Type: GrantFiled: August 30, 2016Date of Patent: April 21, 2020Assignee: Safran Aircraft EnginesInventors: Yann Claude Daniel Bignon, Didier Christian Boisard, Philippe Germain Marie Joseph Jehanno
-
Publication number: 20180252474Abstract: A framework for handling blades, comprising a bottom wall carrying a plurality of intermeshed longitudinal and transverse partitions forming a grid defining a plurality of housings each able to receive a blade. The framework comprises rods for supporting and holding the blades remote from the base wall and said longitudinal and transverse partitions, said rods crossing the longitudinal and transverse partitions and extending into the housings and being produced, at least externally, from a thermally insulating material.Type: ApplicationFiled: August 30, 2016Publication date: September 6, 2018Applicant: Safran Aircraft EnginesInventors: Yann Claude Daniel Bignon, Didier Christian Boisard, Philippe Germain Marie Joseph Jehanno
-
Patent number: 9579945Abstract: Provided is a continuous hydraulic suspension system which has, in each front and rear valve block (25, 26), an Energy Management Valve (EMV) (27, 28) and Check Valves (CV) (29, 30, 31, 32) to provide re-circulation of oil in the resistive mode. The system allows reduced energy consumption during non-motoring modes, and enables a smaller capacity pump and/or an electric motor pump to be used.Type: GrantFiled: March 27, 2013Date of Patent: February 28, 2017Assignee: BeijingWest Industries Co., Ltd.Inventors: Philippe Germain, Aurelien Fourmy
-
Publication number: 20150202940Abstract: Provided is a continuous hydraulic suspension system which has, in each front and rear valve block (25, 26), an Energy Management Valve (EMV) (27, 28) and Check Valves (CV) (29, 30, 31, 32) to provide re-circulation of oil in the resistive mode. The system allows reduced energy consumption during non-motoring modes, and enables a smaller capacity pump and/or an electric motor pump to be used.Type: ApplicationFiled: March 27, 2013Publication date: July 23, 2015Inventors: Philippe Germain, Aurelien Fourmy
-
Patent number: 8065056Abstract: A vehicle roll control system, comprising a front torsion bar(22), attached to the front hydraulic actuator (34) and a rear torsion bar (24) attached to the rear hydraulic actuator (34?). A pressure control valve (99) is fluidly connected between a pressure source (80) and a reservoir (81). A directional valve (82) is fluidly connected between the pressure control valve (99) and the hydraulic actuators (34,34?). A pressure relief valve (83,84) fluidly connects the directional valve to the pressure source (80) or the reservoir (81) and is actuated to create pressure differential between first fluid chambers (58,58?) of the hydraulic actuators (34,34?)and/or to create pressure differential between second fluid chambers (60,60?) of the hydraulic actuators (34,34?).Type: GrantFiled: April 27, 2005Date of Patent: November 22, 2011Assignee: BWI Company Limited S.A.Inventors: Philippe Germain, Christophe Cardon, Bruno Perree, Frederic Sauvage
-
Patent number: 7862052Abstract: A roll control system comprising a front torsion bar; a front first hydraulic actuator attached to the front torsion bar; a rear torsion bar; a rear first hydraulic actuator attached to the rear torsion bar; and control means connected to the hydraulic actuators and controlling the operation thereof on detection of a predetermined vehicle condition; wherein each hydraulic actuator comprises a first fluid chamber and a second fluid chamber; wherein the control means comprises a source of fluid pressure, a fluid reservoir, a pressure control valve fluidly connected between the pressure source and the reservoir, two pressure relief valves each having two positions to selectively fluidly connect the fluid chambers of the hydraulic actuators either to the pressure source or to the fluid reservoir, and a directional valve fluidly connected between the pressure relief valves and the fluid chambers of the hydraulic actuators; wherein the pressure relief valves and the directional valve are positioned on detection ofType: GrantFiled: July 9, 2008Date of Patent: January 4, 2011Assignee: BWI Company Limited S.A.Inventor: Philippe Germain
-
Patent number: 7748720Abstract: A roll control system comprising a front torsion bar; a front first hydraulic actuator; a front second hydraulic actuator; a rear torsion bar; a rear first hydraulic actuator; a rear second hydraulic actuator; and control means connected to the hydraulic actuators and controlling the operation thereof on detection of a predetermined vehicle condition; wherein each hydraulic actuator comprises a first fluid chamber and a second fluid chamber; wherein the control means comprises a source of fluid pressure, a fluid reservoir, a pressure control valve fluidly connected between the pressure source and the reservoir, and at least three pressure relief valves each having two positions to fluidly connect the fluid chambers of the hydraulic actuators either to the pressure source or to the fluid reservoir; wherein the pressure relief valves are positioned on detection of the predetermined vehicle condition to apply a fluid pressure to the first fluid chamber of the first front hydraulic actuator and to the second fluiType: GrantFiled: July 9, 2008Date of Patent: July 6, 2010Inventor: Philippe Germain
-
Patent number: 7735846Abstract: A hydraulic control circuit (100) comprises a source (180) of fluid pressure having a fluid inlet (201) and a fluid outlet (202); a fluid reservoir (181) fluidly connected to the fluid inlet of the pressure source; an attenuation means (111) having a fluid inlet (203) fluidly connected to the fluid outlet of the pressure source, and a fluid outlet (204); a pressure control valve (199) fluidly connected to the fluid inlet of the attenuation means and to the fluid reservoir or the fluid inlet of the pressure source; and one or more valves (82-84) fluidly connected to the fluid outlet of the attenuation means.Type: GrantFiled: July 24, 2007Date of Patent: June 15, 2010Inventor: Philippe Germain
-
Patent number: 7694984Abstract: A vehicle roll control system for a vehicle having a pair of front wheels and a pair of rear wheels each rotatable on an axle, comprising a front hydraulic actuator attached to the front torsion bar; a rear hydraulic actuator attached to the rear torsion bar; and control means connected to the front and rear hydraulic actuators and controlling the operation thereof on detection of a predetermined vehicle condition; wherein each front and rear hydraulic actuator comprises a housing, a piston making a sealing sliding fit inside the housing to define a first fluid chamber and a second fluid chamber, and a piston rod connected to the piston and extending through the second fluid chamber and out of the housing; wherein the control means acts on detection of the predetermined vehicle condition to apply a fluid pressure to the first fluid chambers of the front and rear hydraulic actuators and to apply a fluid pressure to the second fluid chambers of the front and rear hydraulic actuators; and wherein the control meaType: GrantFiled: September 13, 2007Date of Patent: April 13, 2010Inventor: Philippe Germain
-
Publication number: 20090020966Abstract: A roll control system comprising a front torsion bar; a front first hydraulic actuator attached to the front torsion bar; a rear torsion bar; a rear first hydraulic actuator attached to the rear torsion bar; and control means connected to the hydraulic actuators and controlling the operation thereof on detection of a predetermined vehicle condition; wherein each hydraulic actuator comprises a first fluid chamber and a second fluid chamber; wherein the control means comprises a source of fluid pressure, a fluid reservoir, a pressure control valve fluidly connected between the pressure source and the reservoir, two pressure relief valves each having two positions to selectively fluidly connect the fluid chambers of the hydraulic actuators either to the pressure source or to the fluid reservoir, and a directional valve fluidly connected between the pressure relief valves and the fluid chambers of the hydraulic actuators; wherein the pressure relief valves and the directional valve are positioned on detection ofType: ApplicationFiled: July 9, 2008Publication date: January 22, 2009Inventor: Philippe Germain
-
Publication number: 20090020964Abstract: A roll control system comprising a front torsion bar; a front first hydraulic actuator; a front second hydraulic actuator; a rear torsion bar; a rear first hydraulic actuator; a rear second hydraulic actuator; and control means connected to the hydraulic actuators and controlling the operation thereof on detection of a predetermined vehicle condition; wherein each hydraulic actuator comprises a first fluid chamber and a second fluid chamber; wherein the control means comprises a source of fluid pressure, a fluid reservoir, a pressure control valve fluidly connected between the pressure source and the reservoir, and at least three pressure relief valves each having two positions to fluidly connect the fluid chambers of the hydraulic actuators either to the pressure source or to the fluid reservoir; wherein the pressure relief valves are positioned on detection of the predetermined vehicle condition to apply a fluid pressure to the first fluid chamber of the first front hydraulic actuator and to the second fluiType: ApplicationFiled: July 9, 2008Publication date: January 22, 2009Inventor: Philippe Germain
-
Publication number: 20080140284Abstract: A vehicle roll control system, comprising a front torsion bar, a front hydraulic actuator (34) attached to the front torsion bar; a rear torsion bar, a rear hydraulic actuator (34) attached to the rear torsion bar; and control means (70-99) connected to the front and rear hydraulic actuators and controlling the operation thereof on detection of a predetermined vehicle condition; wherein each front and rear hydraulic actuator comprises a housing, a piston (62,62) making a sealing sliding fit inside the housing to define a first fluid chamber (58,58) and a second fluid chamber (60,60), and a piston rod (64,64) connected to the piston and extending through the second fluid chamber and out of the housing; wherein the control means acts on detection of the predetermined vehicle condition to apply a fluid pressure to the first fluid chamber of the front hydraulic actuator which is different from the fluid pressure applied to the first fluid chamber of the rear hydraulic actuator and/or apply a fluid pressure to theType: ApplicationFiled: April 27, 2005Publication date: June 12, 2008Applicant: DELPHI TECHNOLOGIES, INC.Inventors: Philippe Germain, Christophe Cardon, Bruno Perree, Frederic Sauvage
-
Publication number: 20080067863Abstract: A vehicle roll control system for a vehicle having a pair of front wheels and a pair of rear wheels each rotatable on an axle, comprising a front hydraulic actuator attached to the front torsion bar; a rear hydraulic actuator attached to the rear torsion bar; and control means connected to the front and rear hydraulic actuators and controlling the operation thereof on detection of a predetermined vehicle condition; wherein each front and rear hydraulic actuator comprises a housing, a piston making a sealing sliding fit inside the housing to define a first fluid chamber and a second fluid chamber, and a piston rod connected to the piston and extending through the second fluid chamber and out of the housing; wherein the control means acts on detection of the predetermined vehicle condition to apply a fluid pressure to the first fluid chambers of the front and rear hydraulic actuators and to apply a fluid pressure to the second fluid chambers of the front and rear hydraulic actuators; and wherein the control meaType: ApplicationFiled: September 13, 2007Publication date: March 20, 2008Inventor: Philippe Germain
-
Publication number: 20080067770Abstract: A hydraulic control circuit (100) comprises a source (180) of fluid pressure having a fluid inlet (201) and a fluid outlet (202); a fluid reservoir (181) fluidly connected to the fluid inlet of the pressure source; an attenuation means (111) having a fluid inlet (203) fluidly connected to the fluid outlet of the pressure source, and a fluid outlet (204); a pressure control valve (199) fluidly connected to the fluid inlet of the attenuation means and to the fluid reservoir or the fluid inlet of the pressure source; and one or more valves (82-84) fluidly connected to the fluid outlet of the attenuation means.Type: ApplicationFiled: July 24, 2007Publication date: March 20, 2008Inventor: Philippe A. Germain
-
Patent number: 7293780Abstract: A vehicle roll control system for a vehicle has a hydraulic actuator attached to a torsion bar. The system includes first and second pressure control valves fluidly connected in series between a pressure source and a reservoir, and a directional valve fluidly connected between the pressure control valves and the hydraulic actuator. The control valves are actuated to control the fluid pressure within the hydraulic actuator to either extend or compress the hydraulic actuator based on the detection of a predetermined vehicle condition for controlling vehicle roll.Type: GrantFiled: October 25, 2004Date of Patent: November 13, 2007Assignee: Delphi Technologies, Inc.Inventors: Philippe Germain, Robin Oakley, Bruno Perree
-
Patent number: 7234714Abstract: (57) A roll control system (20) for installation between axially aligned wheels of a motor vehicle, the roll control system comprising a torsion bar (22); a damper (24) attached to one end (28) of the torsion bar and attachable to one of the wheels; and attachment means (25) attached to the other end (29) of the torsion bar and attachable to the other wheel; wherein the damper comprises an axially extending cylindrical housing (52); a piston (34) slidably mounted inside the housing; a piston rod (58) connected to the piston, extending out of one end (55) of the housing, and movable in an axial direction relative to the housing; a floating piston (35) slidably mounted in the housing between the piston and the other end of the housing; a compensation chamber (37) between the floating piston and the other end (54) of the housing containing a first pressurised fluid; a compression chamber (30) between the floating piston and the piston containing a second pressurised fluid; a rebound chamber (32) between the pistType: GrantFiled: July 4, 2002Date of Patent: June 26, 2007Assignee: Delphi Technologies, Inc.Inventors: Philippe Germain, David Burke