Patents Assigned to Tenneco Automotive Operating Company, Inc.
-
Patent number: 9221014Abstract: An exhaust aftertreatment system may include a tank, an injector, a supply conduit, a pump, a pressure sensor, and a control module. The tank may contain a volume of a fluid. The injector may be configured to inject the fluid into a stream of exhaust gas discharged from the combustion engine. The supply conduit may fluidly connect the tank and the injector. The pump may pump the fluid from the tank to the injector. The control module may be in communication with the pressure sensor and the pump and may control the pump based on first and second measurements from the pressure sensor. The first measurement may be indicative of a first pressure within the supply conduit when the pump is operating. The second measurement from the pressure sensor may be indicative of a second pressure within the supply conduit when the pump is not operating.Type: GrantFiled: November 20, 2013Date of Patent: December 29, 2015Assignee: Tenneco Automotive Operating Company Inc.Inventor: Gary Butzke
-
Patent number: 9217483Abstract: A damper system for a vehicle includes a shock absorber and a damper module. The shock absorber includes a plurality of digital valves. The shock absorber is operable at one of multiple damping states based on a valve state of the digital valves. The damper module is coupled to each of the digital valves and controls each of the digital valves to a desired state based on a damper setting. The damper module determines a target damping state, where the target state is one of the multiple damping states. The damper module performs a switch operation to control the valve state of the plurality of digital valves to a given desired state when the target damping state is different from a present damping state.Type: GrantFiled: February 27, 2014Date of Patent: December 22, 2015Assignee: Tenneco Automotive Operating Company Inc.Inventors: Scott S. Dunaway, David R. Blankenship, Karl C. Kazmirski, Jeroen K. Paenhuysen, Jeffrey T. Gardner
-
Publication number: 20150337702Abstract: An aftertreatment system may treat exhaust gas discharged from an engine. The system may include first and second selective-catalytic-reduction (SCR) catalysts and a valve. The valve may be disposed upstream of the first SCR catalyst and at least one of an oxidation catalyst and a particulate filter. The valve is connected to first and second exhaust flow paths and is movable between a first position allowing exhaust gas to flow through the first flow path and bypass the second flow path and a second position allowing exhaust gas to flow through the second flow path and bypass the first flow path. The second SCR catalyst may be a low-temperature SCR catalyst and may be disposed in the second flow path. A control module may cause the valve to move between the first and second positions based on a temperature of the exhaust gas and/or a temperature of the engine.Type: ApplicationFiled: May 23, 2014Publication date: November 26, 2015Applicant: Tenneco Automotive Operating Company Inc.Inventors: Padmanabha Reddy Ettireddy, Adam J. Kotrba, Michael Golin
-
Patent number: 9169890Abstract: A shock absorber includes a valve assembly which includes a valve disc engaging an inner and outer valve land defined by a valve body. The inner valve land is a non-circular valve land such that a radial dimension between the inner and outer valve land varies based upon a circumferential position of the radial dimension. The varying radial dimension provides a progressive valve opening for the valve assembly.Type: GrantFiled: July 21, 2011Date of Patent: October 27, 2015Assignee: Tenneco Automotive Operating Company Inc.Inventors: Gary W. Groves, Ben Schaller, Darrell G. Breese, Daniel T. Keil, Andrew M. Jacobson, John P. McGahey
-
Patent number: 9163691Abstract: A shock absorber has a housing with a piston rod assembly disposed therein. A first rod guide member is secured within a first portion of the housing so as to be concentrically disposed about at least a portion of the piston rod assembly. A second rod guide member is secured within the housing adjacent the first rod guide member so as to be concentrically disposed about at least another portion of the piston rod assembly. An electronically controlled valve assembly is disposed within the second rod guide member and is in communication with the first rod guide member.Type: GrantFiled: July 22, 2013Date of Patent: October 20, 2015Assignee: Tenneco Automotive Operating Company Inc.Inventors: Matthew L. Roessle, Karl C. Kazmirski, Thomas P. Mallin, John McGahey, Timothy Bombrys, David R. Blankenship, Jeroen K. Paenhuysen
-
Patent number: 9163549Abstract: An exhaust treatment device includes an inlet tube having an end in communication with a cavity within a housing. An exhaust treatment component for treating engine exhaust is positioned within the housing. A metal mounting member includes a mounting provision. A retaining plate is engaged with the metal mounting member and fixed to the housing to retain the mounting member between the housing and the retaining plate.Type: GrantFiled: May 12, 2014Date of Patent: October 20, 2015Assignee: Tenneco Automotive Operating Company Inc.Inventors: Megan Wikaryasz, Douglas Otrompke, Pavel Robles
-
Patent number: 9151198Abstract: An exhaust treatment system includes an exhaust treatment device having a stepped outer diameter. First and second clamps each include a stepped inner diameter such that the clamps engage the exhaust treatment device and other portions of the exhaust treatment system when the exhaust treatment device is properly oriented. The exhaust treatment device interferes with one of the clamps to preclude coupling the exhaust treatment device to an adjacent portion of the exhaust treatment system when an attempt is made to install the exhaust treatment device in a reversed improper orientation. A consistent exhaust flow direction through an exhaust treatment device such as a diesel particulate filter may be maintained through use of the inventive system.Type: GrantFiled: October 21, 2013Date of Patent: October 6, 2015Assignee: Tenneco Automotive Operating Company Inc.Inventors: Michael Golin, Rick Thompson
-
Patent number: 9150077Abstract: A shock absorber has a compression valve assembly that provides a high damping load during a compression stroke and an extension valve assembly that provides a high damping load during an extension stroke. One or more digital valve assemblies is positioned to work in parallel with the compression valve assembly and the extension valve assembly to provide a lower damping load. The lowering of the damping load is based upon the cross sectional area of flow passages provided by the one or more digital valve assemblies.Type: GrantFiled: December 19, 2013Date of Patent: October 6, 2015Assignee: Tenneco Automotive Operating Company Inc.Inventors: Matthew L. Roessle, Karl C. Kazmirski, Jeroen K. Paenhuysen, Darrell G. Breese, Daniel T. Keil, Thomas P. Mallin, Jeffrey T. Gardner
-
Patent number: 9140158Abstract: A burner for an exhaust gas treatment system includes a tubular inner housing having a closed upstream end, a reduced diameter portion, and a plurality of apertures downstream of the reduced diameter portion. An outer housing surrounds the inner housing comprising a bypass flow path therebetween. First and second tubular supports fix the upstream end of the inner housing to the outer housing and provide fluid communication between a cavity within the inner housing to a location outside of the outer housing. A plate fixes the downstream end of the inner housing to the outer housing and cooperates with the housings to partially define an aperture formed in a portion of the bypass flow path.Type: GrantFiled: February 11, 2014Date of Patent: September 22, 2015Assignee: Tenneco Automotive Operating Company Inc.Inventors: Nicholas Morley, Lawrence Dalimonte, Jagandeep Sandhu
-
Patent number: 9140174Abstract: An exhaust treatment device includes an inner shell spaced apart from an outer shell by a first gap. An inlet assembly includes a first inner cap and a first outer cap spaced apart by a second gap. An outlet assembly includes a second inner cap and a second outer cap spaced apart from each other by a third gap. A substrate is located within the inner shell. An insulating mat is positioned between the substrate and the inner shell and includes a reduced diameter portion compressing the insulating mat between the inner shall and the substrate. Insulation material fills the first, second and third gaps that are in communication with each other.Type: GrantFiled: February 11, 2015Date of Patent: September 22, 2015Assignee: Tenneco Automotive Operating Company Inc.Inventors: Megan Wikaryasz, Douglas Otrompke, Pavel Robles
-
Patent number: 9133743Abstract: A system for treating the exhaust output by an internal combustion engine includes a regeneration positioned upstream from a diesel particulate filter. The regeneration unit combusts a fuel to heat the exhaust entering the diesel particulate filter. An air pump supplies a secondary source of compressed air to the regeneration unit and is adapted to be driven by the internal combustion engine. A speed sensor is coupled to the air pump and operable to output a signal indicative of a rotational speed of an air pump component. A controller receives the speed sensor signal and determines an operating speed of the internal combustion engine based on the speed sensor signal. The controller controls the regeneration unit based on the engine operating speed.Type: GrantFiled: March 15, 2012Date of Patent: September 15, 2015Assignee: Tenneco Automotive Operating Company Inc.Inventor: Gary Butzke
-
Publication number: 20150247546Abstract: A shock absorber has a pressure tube with a piston assembly slidably disposed within the pressure tube and attached to a piston rod. The piston assembly divides the pressure tube into an upper working chamber and a lower working chamber. The piston assembly includes a frequency dependent valve assembly attached to the piston rod which defines a housing attached to the piston rod and a spool valve assembly. The spool valve assembly includes a spool valve and first and second bypass valve assemblies that control fluid flow through bypass passage that bypasses the piston assembly.Type: ApplicationFiled: February 28, 2014Publication date: September 3, 2015Applicant: TENNECO AUTOMOTIVE OPERATING COMPANY INC.Inventors: Mark NOWACZYK, Gunther BISMANS
-
Patent number: 9121320Abstract: A muffler includes a shell, baffles, and a plurality of pipes. The shell defines first and second end cavities and a central cavity. The end cavities have larger cross-sectional areas that a cross-sectional area of the central cavity. The baffles cooperate to form multiple chambers within the shell. A first inlet directs a first portion of the exhaust into a first chamber. A second inlet directs a second portion of the exhaust into a second chamber. A first pipe extends through first, third and fourth baffles and includes an inlet in the fourth chamber. The first pipe directs exhaust from the fourth chamber to a first outlet at the first end cavity. A second pipe extends through the second, third and fourth baffles and includes an inlet in the third chamber. The second pipe directs exhaust from the third chamber to a second outlet at the second end cavity.Type: GrantFiled: August 19, 2014Date of Patent: September 1, 2015Assignee: Tenneco Automotive Operating Company Inc.Inventors: Richard T. Carr, Frederick M. Baumgartner, David R. Bednarz, Deep K. Singh, Bradley B. Walworth
-
Publication number: 20150231567Abstract: An engine exhaust after-treatment system including an exhaust passage including a plurality of legs, with an exhaust control valve being positioned at an inlet of each of the legs that is configured to control an amount of exhaust that enters each leg. A desulfurization treatment component is located within each of the legs. An alkaline reagent tank provides an alkaline reagent to the desulfurization treatment component, and a reagent control valve is disposed between the alkaline reagent tank and the desulfurization treatment component. The reagent control valve is configured to control an amount of alkaline reagent that enters the desulfurization component. A controller may be communication with each of the exhaust control valves and reagent control valves, wherein the controller is configured to control the exhaust control valves independently of the reagent control valves.Type: ApplicationFiled: February 14, 2014Publication date: August 20, 2015Applicant: Tenneco Automotive Operating Company Inc.Inventors: Michael Golin, Adam J. Kotrba
-
Patent number: 9108484Abstract: An automobile includes an active suspension system and a leveling system. The leveling system receives high pressure fluid from the active suspension system in order to change static vehicle height and compensate for static load changes.Type: GrantFiled: July 25, 2013Date of Patent: August 18, 2015Assignee: Tenneco Automotive Operating Company Inc.Inventor: Koen Reybrouck
-
Patent number: 9108157Abstract: An exhaust after-treatment system including an exhaust passage having at least a first portion and a second portion. An exhaust treatment component may be positioned within the exhaust passage between the first and second portions, and an insulating blanket insulates each of the first portion, second portion, and the exhaust treatment component. Temperature sensors may be positioned at the first portion, the second portion, the exhaust treatment component, wherein each sensor monitors the temperature at its location. A controller may have access to temperature data associated with an insulated exhaust after-treatment system, and the controller compares the monitored temperatures to the temperature data to determine whether a difference exceeding a predetermined threshold exists. If the difference exceeds a predetermined threshold, the controller outputs an error signal identifying particular portions of the exhaust system that are no longer insulated.Type: GrantFiled: January 14, 2014Date of Patent: August 18, 2015Assignee: Tenneco Automotive Operating Company Inc.Inventors: Michael Golin, John W. DeGeorge
-
Patent number: 9103252Abstract: A modular exhaust after-treatment system including a plurality of exhaust after-treatment modules. Each module includes a housing defining a non-linear flow path arranged between an inlet passage and an outlet passage. The non-linear flow path includes a first portion adjacent the inlet passage that includes a first exhaust treatment component, a second portion downstream from the first portion, and a third portion downstream from second portion adjacent the outlet passage, wherein the third portion includes a second exhaust treatment component. The plurality of exhaust after-treatment modules are secured to each other in either horizontally or vertically.Type: GrantFiled: March 15, 2013Date of Patent: August 11, 2015Assignee: Tenneco Automotive Operating Company Inc.Inventors: Michael Golin, Guanyu Zheng, Timothy P. Gardner, Paul Majewski
-
Patent number: 9095827Abstract: A mixer for mixing an exhaust flow with a fluid injected into an exhaust pipe includes a tubular housing having a reduced size center portion positioned between first and second ends. The housing includes circumferentially spaced apart apertures extending through the center portion. A first mixing element includes a first peripheral portion positioned within one of the apertures and a second peripheral portion positioned within another one of the apertures. A second mixing element includes third and fourth peripheral portions positioned within other apertures of the housing.Type: GrantFiled: November 26, 2013Date of Patent: August 4, 2015Assignee: Tenneco Automotive Operating Company Inc.Inventors: Manoj K. Sampath, Rangan Chakravarthi, James Dougherty
-
Publication number: 20150196877Abstract: An exhaust after-treatment system including an exhaust passage having at least a first portion and a second portion. An exhaust treatment component may be positioned within the exhaust passage between the first and second portions, and an insulating blanket insulates each of the first portion, second portion, and the exhaust treatment component. Temperature sensors may be positioned at the first portion, the second portion, the exhaust treatment component, wherein each sensor monitors the temperature at its location. A controller may have access to temperature data associated with an insulated exhaust after-treatment system, and the controller compares the monitored temperatures to the temperature data to determine whether a difference exceeding a predetermined threshold exists. If the difference exceeds a predetermined threshold, the controller outputs an error signal identifying particular portions of the exhaust system that are no longer insulated.Type: ApplicationFiled: January 14, 2014Publication date: July 16, 2015Applicant: Tenneco Automotive Operating Company Inc.Inventors: Michael Golin, John W. DeGeorge
-
Patent number: 9080634Abstract: A shock absorber has a pressure tube with a piston assembly slidably disposed within the pressure tube and attached to a piston rod. The piston assembly divides the pressure tube into an upper working chamber and a lower working chamber. The piston assembly includes a frequency dependent valve assembly attached to the piston rod which defines a housing attached to the piston rod and a piston disposed within the housing. The piston moves within the housing to control the fluid flow through a bypass fluid passage that bypasses the piston assembly.Type: GrantFiled: July 25, 2013Date of Patent: July 14, 2015Assignee: Tenneco Automotive Operating Company Inc.Inventors: Mark Nowaczyk, Gunther Bismans