Siemens Automotive Corporation

Ricardo Inc.

Fca US LLC

Siemens-bendix Automotive Electronics Limited

Alliedsignal Inc.

Allied Corporation

Parker-hannifin Corporation

Siemens Vdo Automotive Corporation

Chrysler Group LLC

Siemens Electroic Limited

Russell J Wakeman

Stephen F Shea

Danny O Wright

Roger C Sager

William B Blomquist

James J Daley

Robert E Weber

Michael T Vincent

John S Bright

Joseph M Dekar

Ronald A Yannone, Jr

Jeffrey P Wuttke

Luis Del Rio

Wei-Jun Yang

Mark L Lott

Edward E Baker

Aikaterini Tsahalou

Willem N Van Vuuren

John Bergstrom

Adam Fleischman

Glen E Tallarek

Joseph B Adams

Joseph A Kovach

Michael R Teets

John R Jaye

John S Bergstrom

Harold E Weissler, Ii

Henry C Dozier

Benjamin G Shirey

Kenric J Johnson

David C Kilgore

Samuel J Sapienza, Iv

Thomas A Sharp

Regina M Cook

Paul J Fitzgerald

Paul J Luft

Barry J Driscoll

William A Peterson, Jr

Frédéric F Jacquelin

Wayne A Thelen

Reinhard Burk

Randall R Ryan

A direct injection fuel supply system, in one exemplary implementation, includes a lift fuel pump, a positive displacement pump, at least one fuel injector and an accumulator assembly. The lift pump is adapted to be in fluid communication with a supply of fuel and the positive displacement pump is in fluid communication with and downstream of the lift pump. The at least one injector is in fluid communication with an outlet of the positive displacement pump via a high pressure fuel line. The accumulator assembly includes an accumulator and a valve, where the valve is in direct fluid communication with the high pressure fuel line and the injector. The valve is selectively controlled to at least one of an open state providing fluid communication between the accumulator and the high pressure fuel line and a closed state blocking fluid communication between the accumulator and the high pressure fuel line.

Direct injection fuel system with controlled accumulator energy storage

An evaporative emissions (EVAP) control system for a vehicle includes a purge pump configured to pump fuel vapor to an engine of the vehicle via a vapor line and a purge valve. The system includes a hydrocarbon (HC) sensor disposed in the vapor line and configured to measure an amount of HC in the fuel vapor pumped by the purge pump to the engine via the vapor line. A controller is configured to: detect an imminent cold start of the engine and, in response to the detecting, perform the cold start of the engine by controlling at least one of the purge pump and the purge valve, based on the measured amount of HC, to deliver a desired amount of fuel vapor to the engine, which decreases HC emissions by the engine.

Hydrocarbon vapor start techniques using a purge pump and hydrocarbon sensor

A direct injection (DI) fuel supply system includes an accumulator valve coupled to a high pressure fuel line at a position between an accumulator and a fuel rail. A controller of the DI fuel supply system is configured to control the accumulator valve to maintain the pressurized fuel housed in the fuel rail at a desired pressure and to control the accumulator valve proximate a fuel injection event by a fuel injector such that the accumulator supplies the fuel rail with approximately the portion of the pressurized fuel injected by the fuel injector during the fuel injection event. This positioning of the accumulator valve between the DI positive displacement fuel pump and the fuel rail together with active control thereof also insulates the fuel rail and the fuel injector from fuel pressure pulsations generated by the DI positive displacement fuel pump.

Direct injection fuel system with controlled accumulator energy storage and delivery

An evaporative emissions (EVAP) control system for a vehicle includes a purge pump configured to pump fuel vapor trapped in a vapor canister to an engine of the vehicle via a vapor line when engine vacuum is less than an appropriate level for delivering fuel vapor to the engine, the fuel vapor resulting from evaporation of a liquid fuel stored in a fuel tank of the engine. The EVAP control system includes a hydrocarbon (HC) sensor disposed in the vapor line and configured to measure an amount of HC in the fuel vapor pumped by the purge pump to the engine via the vapor line. The EVAP control system also includes a controller configured to, based on the measured amount of MC, control at least one of the purge pump and a purge valve to deliver a desired amount of fuel vapor to the engine.

Evaporative emissions control system including a purge pump and hydrocarbon sensor

A fuel supply system with an accumulator that allows for the accumulation of fuel at a pressure greater than the nominal operating pressure of the fuel supply system. The accumulation of fuel allows for less frequent fuel pump operation and therefore a reduction in overall fuel consumption of an engine.

Fuel supply system with accumulator

A fluid-pressure indicator includes a housing having a first region and a second region. A pressure-responsive member is disposed in the first region and is movable between an expanded state and a compressed state. An indicator disk is viewable through the pressure-responsive member when the pressure-responsive member is in the compressed state and is obscured from view through the pressure-responsive member when the pressure-responsive member is in the expanded state. A diaphragm is movable from a relaxed state to a deflected state in response to pressure within the second region exceeding a threshold pressure and prevents fluid communication between the first region and the second region. The diaphragm additionally causes the pressure-responsive member to move from the expanded state to the compressed state when the pressure exceeds the threshold pressure.

High pressure visual indicator

An apparatus for damping vibrations in an internal combustion engine. The apparatus includes a pendulum-type torsional absorber that uses a hydraulic snubber mechanism to limit travel of the pendulum without causing noise or damage to the absorber, crankshaft or other engine components.

Pendulum absorber snubber

A combined hybrid drive system and electro-hydraulic machine includes a hybrid drive system that is adapted to decelerate a rotatably driven mechanism, accumulate the energy resulting from such deceleration, and use the accumulated energy to subsequently accelerate the rotatably driven mechanism. An electro-hydraulic machine is operatively connected to the hybrid drive system and is adapted to be operated in one or more of a plurality of modes to improve the performance of the hybrid drive system.

Electro-hydraulic machine for hybrid drive system

A switching mechanism capable of switching between a two-stroke operation and a four-stroke operation of an engine as desired, wherein the switching mechanism is switchable between engagement with a first cam lobe for four-stroke operation and a second cam lobe for two-stroke operation.

Modulated combined lubrication and control pressure system for two-stroke/four-stroke switching

A reciprocating piston-type internal combustion engine includes an engine cylinder, an intake port, an intake runner providing a passage through which intake gas enters the cylinder through the intake port, an intake valve for opening and closing the intake port, and a first flap located in the intake runner upstream from the intake valve, arranged in series with the intake valve, and having first and second positional states that vary during each engine cycle. The first state opens the intake runner passage to permit intake gas to enter the cylinder through the intake port. The second state at least partially closes the intake runner passage to control the flow of gas exiting or entering the cylinder through the intake port.

Indirect variable valve actuation for an internal combustion engine

A system for detecting aeration in a lubricant includes a sensor having a pair of spaced apart concentric rings forming a first capacitor through which the lubricant flows and a capacitor segment forming a second capacitor with the outer ring. The capacitors are connected in a balanced bridge circuit and the second capacitor is constructed to remove gas entrapped in the lubricant present in the second capacitor so that the bridge becomes unbalanced indicating gas entrapped in the lubricant flowing through the first capacitor.

Aeration sensing device

A switching mechanism capable of switching between a two-stroke and a four-stroke operation of an engine as desired, wherein the switching mechanism is switchable between engagement with a first cam lobe for four-stroke operation and a second cam lobe for two-stroke operation, the four-stroke operation maximizing fuel and emissions efficiency and the two-stroke operation maximizing power.

Two-stroke and four-stroke switching mechanism

An apparatus for deactivating an engine valve has an accumulator sleeve slidably retained in an engine block and biased toward a lower chamber in fluid communication with an interior of the sleeve. A follower piston slides in the sleeve in contact with a lobe of a can. An upper piston slides in an upper chamber in contact with a pushrod. A fluid passage connects the lower chamber and the upper chamber. A normally open spool valve in the fluid passage includes a control spool for opening and closing the passage. Another passage connects the lower chamber and one end of the control spool. A spring chamber provides fluid to an opposite end of the control spool through a control valve from a source of pressurized fluid.

Apparatus for deactivating an engine valve

A vehicle fluid directing includes an engine control unit (ECU) mounted directly to the intake manifold to provide engine management and diagnostic functions. A case encloses the ECU to hermetically seal and protect the circuit board and attached components. Sensors preferably extend through the case and into the intake manifold to receives a direct input to the medium passing through the intake manifold. In another embodiment, a sensor such as an accelerometer which does not extend from the case receives vibration input. As the entire circuit board is directly mounted to the intake manifold, the vibrations are received as input to the sensor.

Integral engine control sensor

A control apparatus for deactivating one of an intake valve and an exhaust valve in an internal combustion engine has a stepped sleeve slidably receiving a valve stem in a smaller diameter portion and a rocker piston in a larger diameter portion. Hydraulic fluid is retained in the sleeve and a clamping block is positioned adjacent the exterior of the larger diameter portion. When the clamping block is activated to engage the sleeve, the sleeve remains stationary as reciprocating movement of the rocker piston causes the valve to open and close. When the clamping block is not activated, the sleeve is free to move with the piston leaving the engine valve closed.

Apparatus for controlling the operation of a valve in an internal combustion engine

Growing community of inventors

Canton, MI, United States of America

Russell J Wakeman