Patents by Inventor Walter Runkel
Walter Runkel 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).
-
Patent number: 8746661Abstract: The invention relates to a hydro-pneumatic piston accumulator (1), particularly for vehicle suspension systems, consisting of an accumulator housing (2) and a separating piston (6), which is disposed free-floating inside the accumulator housing in a displaceable manner in the direction of the movement axis (4). The separating piston separates an accumulator area (8) for a hydraulic medium from a pressure area (10) that is filled or is to be filled with a compressible medium, and is guided with an interior guide opening (30) on an elongated guide element (32), which is axially fixed within the accumulator housing (2).Type: GrantFiled: July 22, 2010Date of Patent: June 10, 2014Assignee: Hemscheidt Fahrwerktechnik GmbH & Co. KGInventor: Walter Runkel
-
Publication number: 20120193849Abstract: A suspension system (1) for a motor vehicle having a telescopic spring cylinder (2), having two spring stages (A, B), namely one main cylinder (8) as a first spring stage (A) and an auxiliary cylinder (10) as a second spring stage (B). An auxiliary piston (26) with an auxiliary piston rod (28) is displaced in the auxiliary cylinder (10). Inside the auxiliary cylinder (10), the auxiliary piston (26) is acted upon by a spring pressure (p2) for decompression, which is generated by a pneumatic pressure medium (PM) inside the auxiliary cylinder (10). The auxiliary piston (26) is indirectly acted upon by the spring pressure (p2) via an hydraulic medium (HM) inside the auxiliary cylinder (10). Peripheral seals (30, 38) arranged between the auxiliary cylinder (10) and the auxiliary piston (26), and the auxiliary piston rod (28) are separated from the pneumatic pressure medium (PM) via the hydraulic medium (HM).Type: ApplicationFiled: December 20, 2011Publication date: August 2, 2012Applicant: Hemscheidt Fahrwerktechnik GmbH & Co. KGInventor: Walter Runkel
-
Patent number: 8151953Abstract: The invention relates to a suspension and damping device (1) for load bearing and sprung wheel support and for damping suspension movements in a motor vehicle, having at least one spring cylinder (2) having a piston (6) which is guided in a cylinder (4) so as to be movable relative to the cylinder and which acts counter to an elastically compressible spring medium (FM) in order to generate a load bearing supporting spring force (F). A separate circuit of a hydraulic damping medium (DM) which is independent of the spring medium (FM) is provided for damping. The piston (6) separates two working chambers (10, 12) from one another within the cylinder (4). One working chamber (10) is assigned to the spring medium (FM) and the other working chamber (12) is assigned to the damping medium (DM).Type: GrantFiled: February 19, 2010Date of Patent: April 10, 2012Assignee: Samsung Electronics Co., Ltd.Inventor: Walter Runkel
-
Publication number: 20120006016Abstract: This invention relates to a hydropneumatic piston reservoir (1) with a primary cylinder (2) in which runs a separating piston (12) with free mobility, with the separating piston (12) sealed off circumferentially, with the separating piston (12) inside the primary cylinder (2) separating two pressure chambers (16, 18) from one another. The separating piston (12) has an axial separating piston rod (20) at one end that is sealed off circumferentially from the primary cylinder (2) and is guided as a plunger (22) in a connected secondary cylinder (4) and is subjected to or can be subjected to a pressure medium. The plunger (22) at its free end away from the primary cylinder (2) has a bumper element (24) with a bumper area (28) projecting radially over the outer circumference (26) of the plunger (22).Type: ApplicationFiled: August 13, 2010Publication date: January 12, 2012Applicant: Hemscheidt Fahrwerktechnik GmbH & Co. KGInventor: Walter Runkel
-
Publication number: 20110042869Abstract: The invention relates to a hydro-pneumatic piston accumulator (1), particularly for vehicle suspension systems, consisting of an accumulator housing (2) and a separating piston (6), which is disposed free-floating inside the accumulator housing in a displaceable manner in the direction of the movement axis (4). The separating piston separates an accumulator area (8) for a hydraulic medium from a pressure area (10) that is filled or is to be filled with a compressible medium, and is guided with an interior guide opening (30) on an elongated guide element (32), which is axially fixed within the accumulator housing (2).Type: ApplicationFiled: July 22, 2010Publication date: February 24, 2011Inventor: Walter Runkel
-
Patent number: 7766136Abstract: The invention relates to a suspension arrangement (1) for—loading-bearing and resilient wheel support in a motor vehicle, having at least one spring cylinder (2) with a piston (6) which is guided in a cylinder (4) such that it can be moved relative to the latter and which, on one side, has a piston rod (8) guided out of the cylinder (4) in the outward direction. The piston (6) separates, within the cylinder (4), a cylindrical working chamber (12) from an annular chamber (14), which encloses the piston rod (8). On the side of the working chamber (12), in order to generate a load-bearing spring force (F), the piston (6) acts counter to a working pressure (pA) of an elastically compressible, in particular pneumatic spring medium (FM). The piston rod (8) is telescopically variable in length via an additional spring cylinder (16), the additional spring cylinder (16) being subjected at least to a counterpressure (pG; pG1, pG2) of an elastically compressible, in particular pneumatic opposing spring medium (GM).Type: GrantFiled: July 18, 2006Date of Patent: August 3, 2010Assignee: Hemscheidt Fahrwerktechnik GmbH & Co. KGInventor: Walter Runkel
-
Publication number: 20100140884Abstract: The invention relates to a suspension and damping device (1) for load bearing and sprung wheel support and for damping suspension movements in a motor vehicle, having at least one spring cylinder (2) having a piston (6) which is guided in a cylinder (4) so as to be movable relative to the cylinder and which acts counter to an elastically compressible spring medium (FM) in order to generate a load bearing supporting spring force (F). A separate circuit of a hydraulic damping medium (DM) which is independent of the spring medium (FM) is provided for damping. The piston (6) separates two working chambers (10, 12) from one another within the cylinder (4). One working chamber (10) is assigned to the spring medium (FM) and the other working chamber (12) is assigned to the damping medium (DM).Type: ApplicationFiled: February 19, 2010Publication date: June 10, 2010Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventor: Walter Runkel
-
Publication number: 20100116608Abstract: The invention relates to a suspension and damping device (1; 100; 201) for the load-bearing and spring-loaded wheel support and for the damping of suspension movements in a motor vehicle. The device comprises at least one spring cylinder (2; 114; 222) having a piston (6; 118; 226) that is guided in a cylinder (4; 116; 224) such that it can move relative thereto. This piston acts against an elastically compressible spring medium (FM) in order to generate a load-bearing supporting spring force (F), wherein for damping purposes a separate circuit of a hydraulic damping medium (DM) is provided and the circuit is independent of the spring medium (FM). The piston (6; 118; 226) inside the cylinder (4; 116; 224) separates two working chambers (10, 12; 120, 122; 228, 230) from each other, wherein the first working chamber (10; 120; 228) is associated with the spring medium (FM) and the second working chamber (12; 122; 230) is associated with the damping medium (DM).Type: ApplicationFiled: November 16, 2009Publication date: May 13, 2010Applicant: HEMSCHEIDT FAHRWERKTECHNIK GMBH & CO. KGInventor: Walter RUNKEL
-
Patent number: 7578512Abstract: The present invention relates to a suspension device for the load-bearing and resilient support of a wheel in a motor vehicle. The device comprises at least one spring cylinder with a piston which is guided in a manner moveable relative to it in a pressure cylinder. A driving device converts pivoting movement of a wheel oscillating-crank supporting arm, which movement oscillates about an oscillating-crank axis into the relative movements between the pressure cylinder and the piston. The piston acts counter to an elastically compressible spring medium in order to produce a load-bearing supporting spring force. The driving device is designed as a gearwheel mechanism.Type: GrantFiled: May 21, 2008Date of Patent: August 25, 2009Assignee: Hemscheidt Fahrwerktechnik GmbH & Co. KGInventor: Walter Runkel
-
Publication number: 20080277894Abstract: The present invention relates to a suspension device for the load-bearing and resilient support of a wheel in a motor vehicle. The device comprises at least one spring cylinder with a piston which is guided in a manner moveable relative to it in a pressure cylinder. A driving device converts pivoting movement of a wheel oscillating-crank supporting arm, which movement oscillates about an oscillating-crank axis into the relative movements between the pressure cylinder and the piston. The piston acts counter to an elastically compressible spring medium in order to produce a load-bearing supporting spring force. The driving device is designed as a gearwheel mechanism.Type: ApplicationFiled: May 21, 2008Publication date: November 13, 2008Applicant: HEMSCHEIDT FAHRWERKTECHNIK GMBH & CO. KGInventor: Walter Runkel
-
Patent number: 7392998Abstract: The present invention relates to a suspension device for the load-bearing and resilient support of a wheel in a motor vehicle, comprising at least one spring cylinder with a piston, which is guided in a manner moveable relative to it in a pressure cylinder, and comprising a driving device for converting pivoting movements of a wheel oscillating-crank supporting arm, which movements oscillate about an oscillating-crank axis, into the relative movements between the pressure cylinder and piston, the piston acting counter to an elastically compressible spring medium (FM) in order to produce a load-bearing supporting spring force (F), the driving device being designed as a gearwheel mechanism.Type: GrantFiled: May 16, 2003Date of Patent: July 1, 2008Assignee: Hemscheidt Fahrwerktechnik GmbH & Co. KGInventor: Walter Runkel
-
Publication number: 20070017760Abstract: The invention relates to a suspension arrangement (1) for—loading-bearing and resilient wheel support in a motor vehicle, having at least one spring cylinder (2) with a piston (6) which is guided in a cylinder (4) such that it can be moved relative to the latter and which, on one side, has a piston rod (8) guided out of the cylinder (4) in the outward direction. The piston (6) separates, within the cylinder (4), a cylindrical working chamber (12) from an annular chamber (14), which encloses the piston rod (8). On the side of the working chamber (12), in order to generate a load-bearing spring force (F), the piston (6) acts counter to a working pressure (pA) of an elastically compressible, in particular pneumatic spring medium (FM). The piston rod (8) is telescopically variable in length via an additional spring cylinder (16), the additional spring cylinder (16) being subjected at least to a counterpressure (pG; pG1, pG2) of an elastically compressible, in particular pneumatic opposing spring medium (GM).Type: ApplicationFiled: July 18, 2006Publication date: January 25, 2007Inventor: Walter Runkel
-
Publication number: 20060208446Abstract: The present invention relates to a suspension device for the load-bearing and resilient support of a wheel in a motor vehicle, comprising at least one spring cylinder with a piston, which is guided in a manner moveable relative to it in a pressure cylinder, and comprising a driving device for converting pivoting movements of a wheel oscillating-crank supporting arm, which movements oscillate about an oscillating-crank axis, into the relative movements between the pressure cylinder and piston, the piston acting counter to an elastically compressible spring medium (FM) in order to produce a load-bearing supporting spring force (F), the driving device being designed as a gearwheel mechanism.Type: ApplicationFiled: May 16, 2003Publication date: September 21, 2006Inventor: Walter Runkel
-
Publication number: 20060021833Abstract: The invention relates to a suspension and damping device (1) for load bearing and sprung wheel support and for damping suspension movements in a motor vehicle, having at least one spring cylinder (2) having a piston (6) which is guided in a cylinder (4) so as to be movable relative to the cylinder and which acts counter to an elastically compressible spring medium (FM) in order to generate a load bearing supporting spring force (F). A separate circuit of a hydraulic damping medium (DM) which is independent of the spring medium (FM) is provided for damping. The piston (6) separates two working chambers (10, 12) from one another within the cylinder (4). One working chamber (10) is assigned to the spring medium (FM) and the other working chamber (12) is assigned to the damping medium (DM).Type: ApplicationFiled: October 3, 2005Publication date: February 2, 2006Inventor: Walter Runkel
-
Patent number: 6102418Abstract: A hydropneumatic suspension system, particularly for wheel support in motor vehicles, with at least one spring arrangement (1, 2) having at least one hydraulic spring strut (4), at least one hydropneumatic spring reservoir (6) and at least one damping valve (8). The spring strut (4) includes a cylinder (10) containing a hydraulic medium, and a piston (12), movably guided therein for spring compression and rebound. The piston (12) separates a cylinder space (16) from an annular space (18) surrounding a piston rod (14), wherein the cylinder space (16) is connected via a damping valve (8) with the spring reservoir (6) for producing an elastic force. The annular space (18) of the spring strut (4) is directly connected, while circumventing the damping valve (8), with the respective spring reservoir (6).Type: GrantFiled: October 24, 1997Date of Patent: August 15, 2000Assignee: Hemscheidt Fahrwerktechnik GmbH & Co.Inventor: Walter Runkel
-
Patent number: 5624105Abstract: The invention pertains to a hydropneumatic suspension system, in particular for motor vehicles, with at least one hydraulic strut (2) that acts upon at least one hydropneumatic piston-type accumulator (6) during deflection and rebound movements. The piston-type accumulator (6) has a separating piston (22) that separates the hydraulic accumulator chamber (24) from a spring chamber (26) containing a compressible medium, in particular a gas. A hydraulic pressure (P.sub.h) acts upon the separating piston (22) from the side of the accumulator chamber (24) and a pneumatic pressure (p.sub.p) acts upon the separating piston from the side of the spring chamber (26), with at least one supplementary spring force (F.sub.F ;F.sub.F1 ;F.sub.F2) acting upon the separating piston (22) of the piston-type accumulator (6) in addition to the forces (F.sub.h,F.sub.p) resulting from charging the separating piston (22) with the hydraulic pressure (P.sub.h) and the pneumatic pressure (p.sub.p).Type: GrantFiled: April 10, 1995Date of Patent: April 29, 1997Assignee: Hemscheidt Fahrwerktechnik GmbH & Co.Inventor: Walter Runkel
-
Patent number: 5458218Abstract: A suspension system with at least one hydraulic spring strut. At least a portion of the hydraulic medium is displaced into a hydropneumatic spring reservoir during the compression movement of the spring strut, and that portion of the hydraulic medium flows back into the spring strut during the expansion movement. At least the expansion flow is conveyed through the flow path of a damping valve and damped due to the fact that the flow path is continuously closed and reopened in an alternating fashion by means of a valve element once a expansion flow is present. The valve element is bypassed via a bypass which is constructed in such a way that a pressure compensation between the sections of the flow path arranged on both sides of the valve element is ensured in the static condition in which essentially no flow is present; and that the bypass essentially loses this pressure compensation function in the dynamic condition in which a flow is present.Type: GrantFiled: December 14, 1993Date of Patent: October 17, 1995Assignee: Hemscheidt Fahrwerktechnik GmbH & Co. KGInventor: Walter Runkel
-
Patent number: 5344124Abstract: The present invention pertains to a suspension system, in particular, for wheel support of motor vehicles with at least one shock absorber leg consisting of a cylinder and a piston moving in this cylinder for contraction and extension, and actuated by a hydraulic medium, in particular, an oil. Preferably the suspension system is of the hydropneumatic design, whereby the hydraulic medium flows back and forth upon retraction and extension via a hydraulic connection between the shock absorber leg and at least one hydropneumatic shock absorber reservoir containing a compressible medium so that the reservoir generates a hydraulic pressure by compression of the compressible medium that causes a spring force in the shock absorber leg due to the pressure applied to the piston.Type: GrantFiled: May 27, 1992Date of Patent: September 6, 1994Assignee: Hemscheidt Fahrwerktechnik GmbH & Co. KGInventor: Walter Runkel
-
Patent number: 5246247Abstract: A hydropneumatic suspension system for motor vehicles. The system contains at least one piston cylinder unit (202) including a cylinder (212) and a piston (214) cooperating with a spring storage system (204, 206) containing a compressible medium, where a hydraulic pressure (p.sub.3, p.sub.4) of the piston cylinder unit (202) acts against a pneumatic pressure (p.sub.1, p.sub.2) of the spring storage system. The pneumatic pressures are smaller than the respective hydraulic pressures. In a preferred embodiment, the piston (214) of the piston cylinder unit divides two pressure spaces (228, 230) whose volumes are varied in opposite directions, where the two pressure spaces are hydraulically separated from each other and are each connected to a separate spring storage system (204, 206).Type: GrantFiled: October 25, 1990Date of Patent: September 21, 1993Assignee: Hermann Hemscheidt Maschinenfabrik GmbH & Co.Inventor: Walter Runkel
-
Patent number: 5217733Abstract: A device for closing an injection mould and comprising a first, stationary mould-part holder, a second mould-part holder movably guided relative to the first holder, and at least one pressure medium-actuated closing cylinder arrangement connected to the mould-part holders, wherein the closing-cylinder arrangement is pivotably connected at least to the movably guided second mould-part carrier.Type: GrantFiled: March 16, 1992Date of Patent: June 8, 1993Assignee: Hermann Hemscheidt Maschinenfabrik GmbH & Co.Inventors: Friedrich-Wilhelm Dennehl, Werner Reihelt, Walter Runkel