Patents by Inventor Martin Weindorf
Martin Weindorf 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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Publication number: 20120080386Abstract: A fuel filter system having a fuel filter (14) and water separation device (20), a water collecting chamber (24) with a drain line (26, 28) and controllable water discharge valve (30). A cleaning component (32) is disposed in the drain line behind the water discharge valve (30). A suction line (38) connects a fuel tank (40) with the fuel pump (18). Between the water collecting chamber (24) and cleaning component (32) a connecting line (36) branches to suction line (38) having a pressure controlled stop check valve (44).Type: ApplicationFiled: October 5, 2011Publication date: April 5, 2012Applicant: MANN+HUMMEL GMBHInventors: Martin Weindorf, Marco Schweikart
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Publication number: 20110266205Abstract: The invention relates to a fuel filter (1), in particular for internal combustion engines of vehicles, comprising: a filter housing (2) having a cover (4) and a housing pot (3), a filter element (5) arranged in said housing pot (3) having a water collection space (9) formed in a floor region (10) between said filter element (5) and said housing pot (3) and a guide pipe (11) exiting from said water collection space (9) wherein a water discharge pipe (16) is arranged through which the water contained in said water collection space (9) can be borne out to the top side of said filter housing (2), wherein said guide pipe (11) protrudes over said cover (4) of said filter housing (2).Type: ApplicationFiled: July 12, 2011Publication date: November 3, 2011Applicant: MANN+HUMMEL GMBHInventors: Jochen Reyinger, Martin Weindorf, Sven Brall
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Publication number: 20110036770Abstract: A sealing device (24) of a filter system (10) for filtering fluids, in particular of a motor vehicle, with a sealing ring (26) is described. The sealing ring (26) serves to seal a pipe (16), in particular a central pipe of a filter housing (12), that penetrates through a flange-sided opening (18) of an end plate (20), in particular of an end element of a filter element (14). The sealing ring (26) features a central section (58) that connects it with the end plate (20). The sealing ring (26) features in its axial direction on both sides of the central section (58) elastic sealing sections (60, 62) which cause each a reduction of the inner diameter of the sealing ring (26) compared with the central section (58).Type: ApplicationFiled: August 5, 2010Publication date: February 17, 2011Applicant: MANN+HUMMEL GMBHInventors: Günter Jokschas, Marco Schweikart, Martin Weindorf
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Publication number: 20100314303Abstract: A fuel filter has a coalescent element for separating water from fuel, a prefilter element, a main filter element, and a common central tube, wherein the coalescent element, the prefilter element, and the main filter element are arranged sequentially along the common central tube. A fuel filter arrangement has a housing in which the fuel filter is arranged. The common central tube of the fuel filter is attached to the housing, wherein between the fuel filter and the housing an annular space is formed.Type: ApplicationFiled: June 15, 2010Publication date: December 16, 2010Applicant: MANN+HUMMEL GMBHInventors: Jochen Reyinger, Martin Weindorf, Sven Brall
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Publication number: 20100224549Abstract: A filter device for a motor vehicle has a filter element with a porous ceramic support body provided with one or more passages for receiving a liquid to be filtered and filter membranes formed on inner walls of the passages. The liquid to be filtered passes through the filter membranes into the support body and exits from the support body through a circumferential surface of the support body. At least one compensation element is arranged at an end face of the support body. The compensation element is elastically deformable for providing an additional liquid volume that is generated when the liquid expands due to freezing.Type: ApplicationFiled: March 8, 2010Publication date: September 9, 2010Applicant: MANN+HUMMEL GMBHInventors: Michael Micke, Guenter Jokschas, Martin Weindorf, Dieter Schreckenberger, Elke Duerr
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Publication number: 20090301950Abstract: A liquid filter has a filter housing with a first thread and a drain passage. A filter element including a filter medium is arranged in the filter housing. A filter lid is provided with a second thread configured to engage the first thread for connecting the filter lid to the filter housing. The filter lid further has a filter bypass valve for bypassing the filter element when a pressure loss that is too high occurs when liquid passes through the filter medium of the filter element. First bayonet connectors are provided on the filter lid and second bayonet connectors are provided on the filter element for connecting the filter element to the filter lid by engaging the first bayonet connectors. A double-concentric seal is arranged on the filter element for closing off the drain passage.Type: ApplicationFiled: December 11, 2008Publication date: December 10, 2009Applicant: MANN+HUMMEL GMBHInventor: Martin Weindorf
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Patent number: 7608184Abstract: A liquid filter, in particular for the lubricating oil of an internal combustion engine, having a housing with an inlet and an outlet formed from a housing pot having a substantially downwardly open filter element installation opening and a screw-on cover that closes the installation opening, and a filter element arranged in the housing, sealingly separating the inlet from the outlet. The screw-on cover has a drain for residual liquid present in the housing with a round drain opening arranged in the central axis of the housing. A device for opening and closing the drain opening is arranged in the area of the drain and connected to an end disk of the filter element so that it moves relative to the drain opening and opens the drain when the cover is unscrewed.Type: GrantFiled: May 19, 2008Date of Patent: October 27, 2009Assignee: Mann & Hummel GmbHInventors: Martin Weindorf, Markus Kolczyk, Ralf Blum
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Patent number: 7597658Abstract: A rotor (10) for a centrifugal separator (12) for circulated engine lubricant formed by end walls (44, 46) and radially outer and inner side walls (42, 52) that define a separation and containment region (82). Wall (52) is defined by a tubular tension member (50) that surrounds a rotation axis (30) and extends between and through the end walls to keep them in position. Mounted within first and second ends (72, 74) of the tubular tension member are respective first and second end closure plugs (86, 88). Plug (88) has a passage (90) to admit liquid into the tubular member, but otherwise each plug is seated to inhibit passage of liquid from the member end. Each plug comprises a body seated by interference fit and an integral axially extending component (86?, 88?) that forms a mounting pin for mounting the rotor within bearing parts (24, 28) of the housing.Type: GrantFiled: April 14, 2006Date of Patent: October 6, 2009Assignee: Mann & Hummel GmbHInventors: Andrew Samways, Andy Collins, Brian Harrison, Anthony W. Fell, Martyn Congram, Stuart Percy, John Lawrence Mills, Adrian Day, Martin Weindorf
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Patent number: 7585408Abstract: A liquid filter, particularly for the lubricating oil of an internal combustion engine, having at least one replaceable filter and a carrier module, in which the replaceable filter has a housing with an inlet and an outlet for the liquid to be filtered; a housing vessel with an opening pointing essentially downward is provided, and a filter medium is arranged in the housing between the inlet and outlet in a sealed manner. The replaceable filter with the opening pointing downward is attached in a sealed manner to the carrier module, and the carrier module has semiautomatic emptying device for the replaceable filter such that emptying of the replaceable filter is initiated by an external operation which opens a drain passage, and the drain passage is automatically closed again after the emptying process is completed.Type: GrantFiled: June 28, 2005Date of Patent: September 8, 2009Assignee: Mann + Hummel GmbHInventors: Martin Weindorf, Thomas Storch, Harald Zeiher
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Publication number: 20080217235Abstract: A liquid filter, in particular for the lubricating oil of an internal combustion engine, having a housing with an inlet and an outlet formed from a housing pot having a substantially downwardly open filter element installation opening and a screw-on cover that closes the installation opening, and a filter element arranged in the housing, sealingly separating the inlet from the outlet. The screw-on cover has a drain for residual liquid present in the housing with a round drain opening arranged in the central axis of the housing. A device for opening and closing the drain opening is arranged in the area of the drain and connected to an end disk of the filter element so that it moves relative to the drain opening and opens the drain when the cover is unscrewed.Type: ApplicationFiled: May 19, 2008Publication date: September 11, 2008Applicant: Mann & Hummel GmbHInventors: Martin WEINDORF, Markus KOLCZYK, Ralf BLUM
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Patent number: 7390407Abstract: A liquid filter, in particular for the lubricating oil of an internal combustion engine, having a housing with an inlet and an outlet formed from a housing pot having a substantially downwardly open filter element installation opening and a screw-on cover that closes the installation opening, and a filter element arranged in the housing, sealingly separating the inlet from the outlet. The screw-on cover has a drain for residual liquid present in the housing with a round drain opening arranged in the central axis of the housing. A device for opening and closing the drain opening is arranged in the area of the drain and connected to an end disk of the filter element so that it moves relative to the drain opening and opens the drain when the cover is unscrewed.Type: GrantFiled: December 6, 2005Date of Patent: June 24, 2008Assignee: Mann & Hummel GmbHInventors: Martin Weindorf, Markus Kolczyk, Ralf Blum
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Publication number: 20060258523Abstract: A rotor (10) for a centrifugal separator (12) for circulated engine lubricant formed by end walls (44, 46) and radially outer and inner side walls (42, 52) that define a separation and containment region (82). Wall (52) is defined by a tubular tension member (50) that surrounds a rotation axis (30) and extends between and through the end walls to keep them in position. Mounted within first and second ends (72, 74) of the tubular tension member are respective first and second end closure plugs (86, 88). Plug (88) has a passage (90) to admit liquid into the tubular member, but otherwise each plug is seated to inhibit passage of liquid from the member end. Each plug comprises a body seated by interference fit and an integral axially extending component (86?, 88?) that forms a mounting pin for mounting the rotor within bearing parts (24, 28) of the housing.Type: ApplicationFiled: April 14, 2006Publication date: November 16, 2006Applicant: Mann & Hummel GmbHInventors: Andrew Samways, Andy Collins, Brian Harrison, Anthony Fell, Martyn Congram, Stuart Percy, John Mills, Adrian Day, Martin Weindorf
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Publication number: 20060118476Abstract: A liquid filter, in particular for the lubricating oil of an internal combustion engine, having a housing with an inlet and an outlet formed from a housing pot having a substantially downwardly open filter element installation opening and a screw-on cover that closes the installation opening, and a filter element arranged in the housing, sealingly separating the inlet from the outlet. The screw-on cover has a drain for residual liquid present in the housing with a round drain opening arranged in the central axis of the housing. A device for opening and closing the drain opening is arranged in the area of the drain and connected to an end disk of the filter element so that it moves relative to the drain opening and opens the drain when the cover is unscrewed.Type: ApplicationFiled: December 6, 2005Publication date: June 8, 2006Applicant: Mann & Hummel GmbHInventors: Martin Weindorf, Markus Kolczyk, Ralf Blum
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Publication number: 20060011524Abstract: A liquid filter, particularly for the lubricating oil of an internal combustion engine, having at least one replaceable filter and a carrier module, in which the replaceable filter has a housing with an inlet and an outlet for the liquid to be filtered; a housing vessel with an opening pointing essentially downward is provided, and a filter medium is arranged in the housing between the inlet and outlet in a sealed manner. The replaceable filter with the opening pointing downward is attached in a sealed manner to the carrier module, and the carrier module has semiautomatic emptying device for the replaceable filter such that emptying of the replaceable filter is initiated by an external operation which opens a drain passage, and the drain passage is automatically closed again after the emptying process is completed.Type: ApplicationFiled: June 28, 2005Publication date: January 19, 2006Applicant: MANN & HUMMEL GMBHInventors: Martin Weindorf, Thomas Storch, Harald Zeiher
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Patent number: 6558536Abstract: A liquid filter, especially including an oil filter cartridge (12) which is contained in a pot-shaped or cylindrical housing (10) with threaded cover (11), into which a cooler (13) is preferably installed. An outlet opening (37a) is contained in the oil cooler (13) which facilitates complete emptying of the cooler when the filter is changed. In this way, a complete replacement of the oil can be performed, so that the replaced oil is not contaminated from the outset by residues of the old oil. Thus, service intervals can be lengthened. To prevent a short circuit of the outlet opening (37a) during operation, the opening is closed by a valve stem (33) coupled to the threaded cover (11) and opened by unscrewing the cover.Type: GrantFiled: December 21, 2000Date of Patent: May 6, 2003Assignee: Filterwerk Mann & Hummel GmbHInventors: Herbert Jainek, Martin Weindorf, Herbert Dreher
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Patent number: 6485637Abstract: A liquid filter, suitable for the lubricating oil of an internal combustion engine, having a cartridge installation opening 15 which faces substantially downward, a positively guided oil drain 28 is proposed for draining oil from the filter when the filter cartridge is changed. The positive guidance is effected by a valve stem 29 which is connected directly or indirectly to the housing by a support tube 22. It opens a gasketed drain opening which can be connected to a hose 35 in order to assure drainage of oil, for example, to a separate oil collecting vessel. The drain opening is automatically opened by unscrewing the screw-on cover 11. No other drain plug or the like needs to be opened. This filter is especially suited for installation in confined spaces since the oil can be drained in a reliable manner.Type: GrantFiled: December 21, 2000Date of Patent: November 26, 2002Assignee: Filterwerk Mann & Hummel GmbHInventors: Herbert Jainek, Martin Weindorf
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Patent number: 6463904Abstract: An oil module for an internal combustion engine including a carrier element (10), an oil pump (12) integrated in the carrier element, an oil filter (21) which is flange-mounted to the carrier element, and at least one pressure control valve (17). The carrier element (10) is made of synthetic resin material and covers a flange area of the internal combustion engine. The housing for the oil pump (12) is arranged on the carrier element (10) in the flange area of the internal combustion engine.Type: GrantFiled: June 7, 2001Date of Patent: October 15, 2002Assignee: Filterwerk Mann & Hummel GmbHInventor: Martin Weindorf
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Publication number: 20020088445Abstract: A centrifuge for cleaning the lubricating oil of an internal combustion engine, which simultaneously cleans the crankcase gases in which the separation result is improved by introducing crankcase gases (dashed arrows) directly, without any shielding baffles, into the oil mist generated by the drive nozzles in the centrifuge housing in order to produce a scrubbing effect, so that the crankcase gases are precleaned. For additional cleaning, guide vanes mounted on the rotor swirl the crankcase gas so that further residues are deposited along the walls of the housing, thereby making further measures to clean the crankcase gases unnecessary, with the result that the apparatus highly economical since it saves both material costs and maintenance costs.Type: ApplicationFiled: December 21, 2001Publication date: July 11, 2002Inventors: Martin Weindorf, Pius Trautmann
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Publication number: 20020023612Abstract: An oil module for an internal combustion engine including a carrier element (10), an oil pump (12) integrated in the carrier element, an oil filter (21) which is flange-mounted to the carrier element, and at least one pressure control valve (17). The carrier element (10) is made of synthetic resin material and covers a flange area of the internal combustion engine. The housing for the oil pump (12) is arranged on the carrier element (10) in the flange area of the internal combustion engine.Type: ApplicationFiled: June 7, 2001Publication date: February 28, 2002Inventor: Martin Weindorf
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Publication number: 20020020660Abstract: A liquid filter, suitable for the lubricating oil of an internal combustion engine, having a cartridge installation opening 15 which faces substantially downward, a positively guided oil drain 28 is proposed for draining oil from the filter when the filter cartridge is changed. The positive guidance is effected by a valve stem 29 which is connected directly or indirectly to the housing by a support tube 22. It opens a gasketed drain opening which can be connected to a hose 35 in order to assure drainage of oil, for example, to a separate oil collecting vessel. The drain opening is automatically opened by unscrewing the screw-on cover 11. No other drain plug or the like needs to be opened. This filter is especially suited for installation in confined spaces since the oil can be drained in a reliable manner.Type: ApplicationFiled: December 21, 2000Publication date: February 21, 2002Inventors: Herbert Jainek, Martin Weindorf