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Cummins Engine Company, Inc. Patents
Assignee:
Cummins Engine Company, Inc.
Address:
Columbus, IN
No. of patents:
618
Patents:


1 2 3 4 5 6 7 8 9 10 11 12 13










Patent Number Title Of Patent Date Issued
RE37703 Control system for regulating output torque of an internal combustion engine May 14, 2002
An engine control system is operable to provide an engine fueling rate equal to the larger of a first engine fueling rate at which the resulting engine torque is limited by a maximum input torque capacity of a presently engaged gear ratio of the transmission and a second engine fueling r
RE37241 Solenoid controlled variable pressure injector June 26, 2001
A unit fuel injector adapted to receive fuel from a fuel supply at relatively low pressure and adapted to inject fuel at relatively high pressure into the combustion chamber of an internal combustion engine is provided, comprising an injector body having a first internal bore and an
RE36186 Method and device for controlling critical switch failure and neutral conditions at high and low April 6, 1999
A control system for controlling automatic shifting of a manual/automatic transmission is disclosed including a cruise control system and an auto-shift mode for controlling automatic upshift and downshift operations between the top two gears of a heavy duty truck transmission. Certain
RE36007 Method and apparatus for control of engine compression brakes before during and after an electro December 22, 1998
An engine compression brake control device is disclosed. The control device is electronic and prevents activation of the engine compression brakes during operating states wherein undesirable conditions will result if the engine brakes are active. The electronic control device monitors va
RE32802 Two-cycle engine with improved scavenging December 20, 1988
A two-cycle internal combustion engine having an "open" combustion chamber/poppet valve arrangement that produces improved scavenging. The combustion chamber has a generally oblate configuration and is slanted with respect to the cylinder axis in such a manner that the air flowing th
D298051 Air filter housing for mounting on an internal combustion engine October 11, 1988
7481200 Start-up control of internal combustion engines January 27, 2009
An electric power generation system (20) is disclosed, which includes an electric power generator (22) driven by a four-cycle internal combustion engine (30). The engine (30) includes a plurality of reciprocating cylinders (C1-C6) each rotatably coupled to a crankshaft (34), which dr
7240584 Connecting rod with profiled bore for increased load capability July 10, 2007
An engine cylinder piston connecting rod subassembly, for use in an engine, includes a piston (53), a piston pin (52) and a connecting rod (51). The connecting rod has a piston end portion with a piston pin bore (62). The piston pin is inserted through the piston pin bore and opposit
7028918 Fuel injector having a nozzle with improved cooling April 18, 2006
A fuel injector having a nozzle with improved cooling including a retainer and a nozzle housing received therein. The nozzle housing includes a nozzle shank, an outer peripheral surface and at least one injection hole at a tip of the nozzle shank. The nozzle shank is positioned in a nozz
6876097 System for regulating speed of an internal combustion engine April 5, 2005
An internal combustion engine system is disclosed that improves regulation of engine speed relative to a speed setpoint. The system controls ignition timing, throttle plate actuation, fuel valve actuation or a combination thereof in accordance with maintaining a setpoint speed. The syste
6725819 Rocker lever ball socket retainer April 27, 2004
The present invention provides a mechanism of retaining a rocker lever ball socket on a rocker lever ball. The mechanism provided is a retaining cap which is adapted to fit over and securely engage to the socket through a tab and groove arrangement and is made of a slightly elastic mater
6718425 Handheld computer based system for collection, display and analysis of engine/vehicle data April 6, 2004
A novel and improved engine data system for collecting, displaying and analyzing engine/vehicle data is provided. The system have advantageously results in a more effective, convenient, portable and low cost method of monitoring and processing vehicle data. The vehicle data system includ
6679953 Method for assembling and hardening a ball plug in a counterbore of a fuel injector nozzle assem January 20, 2004
According to the method of the present invention, the ball plug is press fit into the counterbored passage of a fuel injector nozzle assembly prior to hardening of the fuel injector nozzle assembly. A core hardening and gas nitriding process is then applied to the assembly, causing the b
6651638 System and method for derating an engine to encourage servicing of a vehicle November 25, 2003
In one embodiment of the present invention, a system is disclosed for monitoring the backpressure produced by a particulate filter of an internal combustion engine. When the backpressure of the engine exceeds a predetermined threshold, indicating that the particulate filter should be
6629349 Apparatus for removal and installation of a fuel injector October 7, 2003
A method and apparatus for the manipulation of a fuel injector in association with an internal combustion engine. In one form a fuel injector tool is pivotally coupled to a cylinder head and rotated to apply a removal or installation force to a fuel injector. The tool is adapted to b
6601015 Embedded datalogger for an engine control system July 29, 2003
An apparatus is disclosed including an internal combustion engine, a number of sensors configured to detect operating parameters of the engine, and art engine control system responsive to the sensors to regulate engine operation. The control system includes a controller operatively coupl
6595436 Proportional needle control injector July 22, 2003
The fuel injector includes a solid state actuator that operates through an actuator motion amplifying lever to directly control the needle valve motion. Hydraulic forces, which act along the axes of the needle valve and the motion amplifying lever, are compensated by using a control pist
6578282 Disposable cylinder head bolt torque sequence template June 17, 2003
A torque sequence template includes a head gasket backing that is constructed and arranged to support a head gasket when packaged with the backing. The head gasket backing has a plurality of tightening sequence punch-outs arranged thereon in positions corresponding to head bolt locat
6575022 Engine crankcase gas blow-by sensor June 10, 2003
An engine crankcase gas blow-by sensor. In a closed crankcase ventilation system, crankcase gases are caused to flow through a venturi which includes high pressure and low pressure taps. The high and low pressure taps are coupled to a differential pressure transducer which produces an
6557779 Variable spray hole fuel injector with dual actuators May 6, 2003
An improved closed nozzle injector assembly for injecting high pressure fuel into the combustion chamber of an engine is provided which includes a first needle valve element associated with a first set of injector orifices, a first needle valve control device for controlling the opening
6550455 Cyclic pressurization including plural pressurization units interconnected for energy storage an April 22, 2003
A fuel injection system is disclosed for an internal combustion engine that has multiple combustion chambers and a camshaft which cyclically imparts pressurization energy to and recovers pressurization energy from fuel being supplied to the engine. The fuel injection system includes a
6546912 On-line individual fuel injector diagnostics from instantaneous engine speed measurements April 15, 2003
Manufacturing imperfections and component failures in the fuel system of an engine, can lead to non-uniform torque production among the cylinders. Non-uniform cylinder torques can be observed as small engine speed fluctuations about the average engine speed at any given operating point.
6543227 Automated active variable geometry turbocharger diagnosis system April 8, 2003
The present invention relates to an engine diagnostic system for detecting malfunctions in an engine system having a variable geometry turbine exhaust system. The engine diagnosis system includes an electronic control module adapted to periodically initiate a preprogrammed variable geome
6543113 Tooling components for crankshaft seal removal and installation April 8, 2003
A kit of tooling components for use in facilitating the removal as well as the installation of a crankshaft seal includes a housing assembly which is constructed and arranged for attachment to a crankshaft seal during the removal procedure and for pushing the crankshaft seal into positio
6532929 Vented fastener March 18, 2003
A fastener for venting gas around the shank of the fastener. The present invention includes various embodiments for venting gases such as combustion gases that seep from a head gasket of an internal combustion engine to the area around the shank of a cylinder head bolt, as one exampl
6502293 Tooling for camshaft gear removal January 7, 2003
A kit of tooling components for facilitating removal of a gear from a shaft includes a plurality of jaw members that are adapted to fit through blanking holes defined in the gear. The jaw members are further adapted to engage the gear. The kit further includes a set of studs with each of
6484686 Method and system for idling a diesel engine November 26, 2002
A system is disclosed for implementing a technique for idling a diesel engine. The system comprises an engine controller, an air temperature sensor, and an engine speed sensor. The air temperature sensor provides a first signal indicative of an internal temperature of an intake manifold
6474319 Filter system for the removal of hydrocarbon deposits from a cooled exhaust gas recirculating en November 5, 2002
The present invention relates to a method and apparatus for removing hydrocarbons from the exhaust stream of a diesel engine prior to cooling the exhaust for recycling through the intake manifold. A filter is used to remove hydrocarbon combustion products, including particulate matter, f
6463898 Rocker lever ball socket retainer October 15, 2002
The present invention provides a mechanism of retaining a rocker lever ball socket on a rocker lever ball. The mechanism provided is a retaining cap which is adapted to fit over and securely engage to the socket through a tab and groove arrangement and is made of a slightly elastic mater
6457467 Internal combustion engine with air/fuel ratio control October 1, 2002
One embodiment of the present invention includes sensing speed or an internal combustion engine that includes a manifold coupled to an air pathway and a gaseous fuel line, sensing manifold pressure, and sensing manifold temperature. Air mass flow rate is determined as a function of t
6445996 Method and system for dynamically estimating atmospheric air pressure ambient to an internal com September 3, 2002
A system for executing a method for estimating atmospheric air pressure ambient to an internal combustion engine as a means to preclude the need for an atmospheric air pressure sensor. The system includes an absolute boost pressure sensor, an engine speed sensor, and an electronic contro
6440038 Method and system for managing torque of a drivetrain August 27, 2002
A system is disclosed for implementing a technique for managing torque of a drivetrain. The drivetrain includes an air intake passage having a throttle valve, an internal combustion engine having an output shaft, a transmission having an output shaft, and a rotational propulsion member
6438510 Recursive vehicle mass estimation system August 20, 2002
A method and apparatus is disclosed for recursively estimating vehicle mass and/or aerodynamic coefficient of a moving vehicle. The vehicle speed and push force data are collected and a segment of qualified data is then selected from the collected data. Newton's second law is integrated
6434841 Pulley alignment tool August 20, 2002
A pulley alignment tool for checking the centerline alignment between a driving pulley and a driven pulley which are connected by a V-belt includes a targeting laser which is constructed and arranged to generate a beam of light which will be directed from a location adjacent the driving
6434809 Tooling component for camshaft removal and installation August 20, 2002
A kit for both removal of a camshaft from a cylinder block and for installation of a camshaft into a cylinder block includes a minimum of six unitary, molded plastic camshaft guides, an extraction tool, and a pilot to be attached to a rear face of the camshaft in order to provide add
6425382 Air-exhaust mixer assembly July 30, 2002
An air-exhaust mixer assembly includes an air intake to supply air and an exhaust gas intake to supply exhaust gas. A mixer is fluidly coupled to the air intake and the exhaust gas intake. The mixer has an inner passage and an outer passage defined therein along a longitudinal axis. The
6408625 Operating techniques for internal combustion engines June 25, 2002
An electric power generation system is disclosed, which includes a back-up electric power generator driven by a four-cycle internal combustion engine. The engine includes a plurality of reciprocating cylinders each rotatably coupled to a crankshaft, which drives the electric power ge
6390046 Valve train with a single camshaft May 21, 2002
A valvetrain with a single camshaft is disclosed. The valvetrain has one or more intake valves, and one or more exhaust valves per cylinder of an engine block. The valvetrain comprises a cylinder head. The valve head of each intake valve is removably seated within a corresponding intake
6385500 Hybrid servomechanism for micro-electrical discharge machining May 7, 2002
The present invention relates to an improved servomechanism for regulating the spark gap in micro electrical discharge machining (micro-EDM). The present invention utilizes a hybrid two actuator servo system for positioning the micro-EDM electrode. The hybrid system comprises a fast,
6367316 Real-time mass flow measurement April 9, 2002
A real-time mass flow measurement system that accurately measures fuel mass delivered to each cylinder per stroke of an injection pump or a fuel injector in an internal combustion engine. In accordance with preferred embodiment of the present invention, the mass flow measurement system a
6363318 Method to compensate errors in engine speed measurement March 26, 2002
The invention provides a software method to correct for non-fuel injection induced errors in measured engine speed. This invention provides a means to calculate a least squares regression of the measured engine speed data when the engine is motoring without combustion or load. The motori
6354084 Exhaust gas recirculation system for a turbocharged internal combustion engine March 12, 2002
An exhaust gas recirculation (EGR) enhancement system for a turbocharged internal combustion engine includes a throttle valve arranged in the exhaust duct of the engine, downstream of the EGR system. The throttle valve is controlled in response to engine load and engine speed to sele
6343574 Load distribution rib for the combustion deck of an internal combustion engine February 5, 2002
A unitary combustion deck for an internal combustion engine includes a main body portion having a cylinder-facing surface and a coolant-side facing surface. The combustion deck further includes a plurality of bolt bosses which are integrally cast as part of the coolant-side surface and e
6330872 Cylinder head casting with gusset ribs December 18, 2001
A unitary cylinder head casting for an engine includes a plurality of valve guide bore casting portions, each valve guide bore casting portion defining a valve guide bore and a plurality of head bolt bore casting portions, each head bolt bore casting portion defining a head bolt bore.
6328001 Replaceable cylinder liner with improved cooling December 11, 2001
A replaceable cylinder liner for an internal combustion engine. The position of the liner within the block is established by a midstop. An interference fit below the midstop seals the bottom end of a cooling passage that extends around the liner. The top end of the cooling passage is
6321536 Pneumatically controlled exhaust throttle for delivering EGR on turbocharged engines November 27, 2001
A pneumatic throttle system for maintaining sufficient exhaust pressure to maintain exhaust flow through an EGR system. The throttle system includes an apertured throttle plate positioned to selectively restrict the flow of exhaust gasses exiting the engine. Movement of the plate is cont
6321142 System for programming a vehicle control computer with selectable features and/or trim values November 20, 2001
A system for programming a vehicle control computer with selectable features and/or trim values includes a first computer maintaining a web site containing vehicle control computer calibration information and a second computer operable to access the web site whereby the first computer
6314359 System for modifying a load bias function based on transient engine operation November 6, 2001
The present invention relates to a system for controlling loading of an internal combustion engine based on a an adjusted load bias signal produced by an engine control computer. The engine control computer is responsive to engine speed and commanded fueling to produce a load bias si
6311494 Exhaust gas recirculation system for a turbocharged internal combustion engine November 6, 2001
An exhaust gas recirculation (EGR) enhancement system for a turbocharged internal combustion engine includes a throttle valve arranged in the exhaust duct of the engine, downstream of the EGR system. The throttle valve is controlled in response to engine load and engine speed to sele
6308124 System for determining an equivalent throttle valve for controlling automatic transmission shift October 23, 2001
A system is disclosed for determining an effective throttle value of an internal combustion engine for controlling automatic transmission shift points. In one embodiment, the system is operable to determine an effective throttle value as a function of commanded fueling and engine spe
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