Patents Represented by Attorney Robert J. Outland

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  • Diesel engine shutdown control system
    Patent number: 4296718
    Abstract: A diesel engine fuel supply and control system for an engine having a fuel supply pump which has its direction of rotation in accord with the direction of engine rotation is provided with engine shutdown, anti-bump start and reverse rotation arresting means including, in a preferred embodiment, a pressure responsive piston that acts against a run-stop control lever to cut off fuel supply to the engine cylinders and a selector valve that selectively exposes the piston to pressures on either side of the engine fuel pump. When the valve is set to provide the normal pump inlet pressure to the piston, the engine may operate in the forward rotation direction but is stopped if reverse rotation occurs. If changed to expose the piston to normal pump outlet pressure, the engine is stopped or prevented from operating in the forward rotation direction.
    Type: Grant
    Filed: September 17, 1979
    Date of Patent: October 27, 1981
    Assignee: General Motors Corporation
    Inventors: Edward D. Baugh, Mark B. Hoffman
  • Diesel engine exhaust trap particulate distribution and incineration balancing system
    Patent number: 4290263
    Abstract: A diesel particulate trapping and incineration system including a porous wall monolithic ceramic filter element having dual open-ended inlet passages separated from adjacent exhaust passages by particulate filtering porous walls. A balancing system for the distribution and incineration of particulates is provided including dual inlet ducts feeding exhaust gases to both ends of the inlet passages and valve means for controlling the amount of inlet gas flow entering the open opposite ends of the inlet ducts. In this way control is obtained of distribution of particulates over the length of the inlet duct walls as well as of the incineration of particulates upon heating of the exhaust gases to incineration temperature.
    Type: Grant
    Filed: December 12, 1979
    Date of Patent: September 22, 1981
    Assignee: General Motors Corporation
    Inventors: Gamdur S. Mann, Dilip V. Tendulkar, William J. Parker
  • Target injection stratified charge spark ignition engine
    Patent number: 4286557
    Abstract: A stratified charge spark ignition internal combustion engine is arranged to provide a preferably centered target recess on the end of the piston to redirect fuel spray injected against the recess back into the central portion of the combustion chamber to form a centralized relatively rich core or mixture cloud surrounded by an annular body of air. The size of the centered mixture cloud is load variable as determined by the volume and timing of injection as well as other factors. A preferred embodiment includes a target shape which compensates for limited eccentricity and angularity of the nominally axial injection spray to maintain a relatively even distribution of fuel within the mixture cloud. An alternative arrangement also includes a small ignition antechamber surrounding the end of the injection nozzle.
    Type: Grant
    Filed: September 21, 1979
    Date of Patent: September 1, 1981
    Assignee: General Motors Corporation
    Inventor: Edward D. Klomp
  • Two-cycle diesel engine with piston ring stabilizing accumulator volume
    Patent number: 4282837
    Abstract: A two-stroke cycle diesel engine having ported cylinders is provided with a piston having an accumulator volume between the two top piston rings, the volume being sized large enough in relation to the piston ring leakage area and operating conditions to limit the build-up of gas pressure between the rings to a value below that of the cylinder pressure during nearly all conditions of normal engine operation. The arrangement substantially stabilizes the position of the top piston ring against the bottom of its piston ring groove, thereby avoiding shock loading of the top ring through cyclic unseating due to differential pressure reversals.
    Type: Grant
    Filed: September 5, 1979
    Date of Patent: August 11, 1981
    Assignee: General Motors Corporation
    Inventors: Robert L. Holtman, Robert B. McClure
  • Diesel exhaust filter-incinerator
    Patent number: 4283207
    Abstract: A diesel engine exhaust particulate filter-incinerator comprising an enclosed filter panel having particulate deposition surfaces bordered by electrodes of a high voltage power supply. Periodic incineration is accomplished by the collection on the surfaces of particulates in amounts sufficient to conduct sufficient electric current along paths through the particulates to heat them to incineration temperature. Ignition and burn off of particulates may be automatically accomplished by maintaining a suitable voltage across the electrodes at the edges of the collection surfaces to initiate arc-like current flow before the collected particulates reach a level that would plug the filter. Specific embodiments of exemplary filter constructions are disclosed.
    Type: Grant
    Filed: June 19, 1980
    Date of Patent: August 11, 1981
    Assignee: General Motors Corporation
    Inventor: Ernest T. Martyniuk
  • Electric heater -method of making
    Patent number: 4281451
    Abstract: A sheathed electric heater for use as an engine glow plug or the like is formed by providing a closed end metal sheath, installing a centered electric heating element that approaches the sheath closed end, adding a small amount of sinterable metal powder covering the end of the heating element at the closed end of the sheath, filling the remaining volume around the element with granular electrical insulating material, swaging the assembly to reduce its diameter, extend its length and compact the insulation, and sintering the metal powder by passing electric current therethrough to provide a low resistance electrical connection between the heating coil and the closed end of the sheath.
    Type: Grant
    Filed: July 12, 1979
    Date of Patent: August 4, 1981
    Assignee: General Motors Corporation
    Inventor: Gamdur S. Mann
  • Compact exhaust silencer for diesel locomotives
    Patent number: 4281741
    Abstract: A compact exhaust silencer especially for use in diesel locomotives having a single exhaust outlet located in relatively close proximity to the roof of the engine hood. The silencer includes an offset duct having dual oppositely curved ninety degree bends, leading to a roof outlet opening and providing broadband high frequency sound level reduction, combined with a compact Helmholtz cavity-type resonator. The resonator consists of a chamber mounted near the first bend in the direction opposite the main duct offset and a connector tube extending from the side of the duct downwardly into the chamber and tuned with the cavity to the sound frequency at which maximum silencing is desired, preferably the predominant firing frequency in the engine noise spectrum at full speed and load.
    Type: Grant
    Filed: October 1, 1979
    Date of Patent: August 4, 1981
    Assignee: General Motors Corporation
    Inventors: Dwight A. Blaser, David J. Goding
  • Engine with intake ported cylinders and porous port liners for oil control
    Patent number: 4280456
    Abstract: An engine having piston-controlled cylinder air intake ports into which lubricating oil may be carried during engine operation is fitted with porous liners in the cylinder intake ports which receive the lubricating oil to prevent its being carried by the inlet air into the engine combustion chamber and exhaust system. Collection and return passages are provided to receive oil drained from the porous liners and return it to the engine crankcase and oil sump. A slight flow of pressurized air from the engine air chamber aids the draining and return passage of oil from the porous liners to the crankcase.
    Type: Grant
    Filed: October 26, 1979
    Date of Patent: July 28, 1981
    Assignee: General Motors Corporation
    Inventor: Edward D. Klomp
  • Ceramic filters for diesel exhaust particulates
    Patent number: 4276071
    Abstract: Diesel exhaust particulates are efficiently trapped by incineration cleanable ceramic monolith porous wall filter elements. A number of arrangements for high efficiency elements having high filtration area in compact units are disclosed.
    Type: Grant
    Filed: December 3, 1979
    Date of Patent: June 30, 1981
    Assignee: General Motors Corporation
    Inventor: Robert J. Outland
  • Monolith diesel exhaust filter with self-regeneration
    Patent number: 4276066
    Abstract: A self-regenerating diesel engine exhaust particulate filter comprising, in a preferred embodiment, porous ceramic walls defining filter surfaces between adjacent inlet and outlet passages and having electric heating wires in the inlet passages to periodically initiate incineration of collected particulates therein. A movable shield is preferably provided to restrict gas flow through the various passages during their respective periods of incineration so as to provide periodic regeneration with a minimum expenditure of external energy.
    Type: Grant
    Filed: February 25, 1980
    Date of Patent: June 30, 1981
    Assignee: General Motors Corporation
    Inventors: Kenneth B. Bly, Mark J. Gutwald, Otto A. Ludecke
  • Divided chamber engine with prechamber exhaust recirculation
    Patent number: 4271810
    Abstract: A divided chamber internal combustion engine is provided with means to recirculate combustion products from the engine precombustion or auxiliary combustion chamber to the intake prior to or during the main chamber exhaust process. The arrangement limits the exhaust of rich prechamber combustion products to the main chamber and exhaust system and instead recirculates them to the intake for subsequent recombustion and emission control purposes.
    Type: Grant
    Filed: January 11, 1980
    Date of Patent: June 9, 1981
    Assignee: General Motors Corporation
    Inventor: David R. Lancaster
  • Variable displacement piston engine
    Patent number: 4270495
    Abstract: A family of balanceable, variable displacement reciprocating piston engine arrangements is disclosed. The arrangements include multiple parallel cylinders having pistons movable therein in balanceable fashion through a fixed geometry rocker mechanism driving oscillating links which are adjustable to provide control of the piston displacement and compression ratio. Both in-line and side-by-side cylinder arrangements are possible. Even firing intervals are preferably provided.
    Type: Grant
    Filed: May 31, 1979
    Date of Patent: June 2, 1981
    Assignee: General Motors Corporation
    Inventors: Ferdinand Freudenstein, E. Roland Maki
  • Diesel engine precombustion chambers
    Patent number: 4270499
    Abstract: A precombustion type diesel engine having a modified and improved flame cup and precombustion chamber arrangement wherein a single side-opening passage in the floor of the flame cup is provided with dual throats connecting with the prechamber. The primary opening or throat controls swirl development during gas inflow to the prechamber while the secondary opening or throat allows early discharge of initial combustion products to the main combustion chamber for improved secondary mixing and reduced particulate emissions.
    Type: Grant
    Filed: May 3, 1979
    Date of Patent: June 2, 1981
    Assignee: General Motors Corporation
    Inventor: Arthur R. Frelund
  • Insulated oil cooled piston assembly
    Patent number: 4270494
    Abstract: An oil cooled diesel engine piston is designed to restrict heat loss from the combustion chamber through provision of a combustion chamber insert defining a central non-oil-cooled chamber and a surrounding annular insulating air gap. The air gap controls heat flow primarily between the combustion gas exposed wall of the insert and an adjacent coolant exposed wall of the main piston volume.The insert is press fitted into a recess in the main piston body and is positively locked therein by a retaining ring. A seal ring closes expansion clearance provided at the upper edge of the insert against significant gas flow into the insulating air gap. Insulating efficiency of the air gap is maximized by forming the gap with a thickness throughout a major portion of its extent of between about 0.040 and 0.060 inches.Numerous additional features are also disclosed.
    Type: Grant
    Filed: January 11, 1979
    Date of Patent: June 2, 1981
    Assignee: General Motors Corporation
    Inventors: Robert F. Garter, Nshan Hamparian, Litton T. Lee
  • Coiled fibrous metallic material and coating for diesel exhaust particulate trap
    Patent number: 4270936
    Abstract: A fibrous filter element for trapping diesel engine exhaust particulates comprises a mass of coiled wire of flattened cross section compacted into a small passage gas pervious body. The base wire is made of high temperature resistant metal, preferably an iron chromium aluminum alloy. The wire is coated with a particulate collection-enhancing coating of titanate ceramic.
    Type: Grant
    Filed: January 18, 1980
    Date of Patent: June 2, 1981
    Assignee: General Motors Corporation
    Inventor: Gamdur S. Mann
  • Diesel engine exhaust particulate trap
    Patent number: 4264344
    Abstract: A serviceable exhaust particulate trap for diesel engines comprising, in a preferred embodiment, a concentric dual bath filter including a tubular outer filter element of high surface area, such as pleated paper or the like, acting as a primary filter, and a tubular mesh-packed secondary filter in a central bypass passage. A normally closed pressure relief valve opens to permit bypass flow through the secondary filter in order to limit back pressure acting on the primary filter under various operating conditions. The particulate trap may be combined in a convenient package with a vehicle muffler.
    Type: Grant
    Filed: February 6, 1980
    Date of Patent: April 28, 1981
    Assignee: General Motors Corporation
    Inventors: Otto A. Ludecke, Theodore L. Rosebrock
  • Diesel exhaust particulate traps
    Patent number: 4264346
    Abstract: Related arrangements of diesel exhaust particulate traps are disclosed wherein particulate filter elements are formed from porous ceramic monoliths made of high temperature ceramic and containing passage defining micronic pores intercepted by high temperature ceramic fibers retained in the ceramic substrate and extending into the passages to provide surfaces for separating particulates from the gases passed through the element.
    Type: Grant
    Filed: December 12, 1979
    Date of Patent: April 28, 1981
    Assignee: General Motors Corporation
    Inventor: Gamdur S. Mann
  • Engine charging system with dual function charge supplying and charge cooling blower
    Patent number: 4258550
    Abstract: A two-stroke cycle turbocharged internal combustion engine is provided with a dual core after-cooler and a dual function positively driven blower which at low engine loads is connected to provide necessary charging air to the engine air intake preferably through the inlet of the turbocharger compressor. During periods of high-load operation, when the turbocharger energy is alone sufficient to provide the engine inlet charge, the blower is reconnected to direct cooling air through the aftercooler system thus lowering the temperature of the inlet charge under high-load conditions. Numerous variations and modifications of the concept are disclosed.
    Type: Grant
    Filed: June 11, 1979
    Date of Patent: March 31, 1981
    Assignee: General Motors Corporation
    Inventors: Stanley J. Hinkle, Dean M. Dildine
  • Insulated oil cooled piston assembly
    Patent number: 4253430
    Abstract: An oil cooled diesel engine piston is designed to restrict heat loss from the combustion chamber through provision of a combustion chamber insert defining a central non-oil-cooled chamber and a surrounding annular insulating air gap. The air gap controls heat flow primarily between the combustion gas exposed wall of the insert and an adjacent coolant exposed wall of the main piston volume.The insert is press fitted into a recess in the main piston body and is positively locked therein by a retaining ring. A seal ring closes expansion clearance provided at the upper edge of the insert against significant gas flow into the insulating air gap. Insulating efficiency of the air gap is maximized by forming the gap with a thickness throughout a major portion of its extent of between about 0.040 and 0.060 inches.Numerous additional features are also disclosed.
    Type: Grant
    Filed: January 11, 1979
    Date of Patent: March 3, 1981
    Assignee: General Motors Corporation
    Inventors: Robert F. Garter, Nshan Hamparian
  • Mechanical engine governor with pressure responsive minimum droop limiting speed control
    Patent number: 4252090
    Abstract: An idle speed-limiting speed engine governor utilizes a friction damped air piston as the sole speed setting means which actively opposes the speed responsive flyweights in a particular range of engine speed operation, the governor limiting speed being controllable by adjusting the air pressure acting against the piston. A minimum droop governor characteristic results with hysteresis limited by minimum friction damping of the piston. A multi-condition air pressure control system is disclosed which is capable of providing various operational modes for the air controlled limiting speed governor.
    Type: Grant
    Filed: February 12, 1979
    Date of Patent: February 24, 1981
    Assignee: General Motors Corporation
    Inventor: Edward D. Baugh