Patents by Inventor Christopher N. F. Sayer

Christopher N. F. Sayer 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).

  • Patent number: 5516309
    Abstract: A terminal assembly for a cable having a multiplicity of conductors, particularly having a relatively high number of small gauge conductors, and providing an individual terminal for each conductor. The terminal assembly comprises a terminal block having a plurality of terminal cavities at one face of the block to receive respective terminal elements and a plurality of conductor apertures in the opposite end of the terminal block. The respective conductors with or without a terminal element connected thereto pass through each conductor aperture to be connected to a terminal element in, or to be located in, a respective terminal cavity. Locking means are provided of the terminal block adapted to anchor each conductor to the terminal block to thereby limit the transmission of cable or conductor movement externally of the terminal block to the terminal elements.
    Type: Grant
    Filed: January 13, 1995
    Date of Patent: May 14, 1996
    Assignee: Orbital Engine Company (australia) Pty. Limited
    Inventors: Christopher N. F. Sayer, David Shawcross
  • Patent number: 5441019
    Abstract: A multi cylinder two stroke cycle internal combustion engine of known construction having an individual crankcase compartment for each cylinder 11 formed in a crankcase 12, the crankcase 12 including a wall 25,25 separating two adjacent crankcase compartments. A crankshaft 13 extends through the wall 25,26 with a journal 29 thereof supported in a bearing assembly 30 has an outer bearing ring 32 non-rotatably mounted in the wall 25,26. The outer bearing ring 32 has an axial extent greater than the thickness of the wall 25,26 to provide an internal annular surface co-axial with a shoulder 36 on the crankshaft that presents an opposing external annular surface to the internal annular surface of the bearing ring 32. A fluid seal is provided between the internal and external annular surfaces to prevent the passage of gas between the crankcase cavities.
    Type: Grant
    Filed: November 10, 1993
    Date of Patent: August 15, 1995
    Assignee: Orbital Engine Company Pty. Limited
    Inventors: Christopher N. F. Sayer, Alan Gorman
  • Patent number: 5403211
    Abstract: A terminal assembly for a cable having a multiplicity of conductors, particularly having a relatively high number of small gauge conductors, and providing an individual terminal for each conductor.The terminal assembly comprises a terminal block having a plurality of terminal cavities at one face of the block to receive respective terminal elements and a plurality of conductor apertures in the opposite end of the terminal block. The respective conductors with or without a terminal element connected thereto pass through each conductor aperture to be connected to a terminal element in, or to be located in, a respective terminal cavity. Locking means are provided of the terminal block adapted to anchor each conductor to the terminal block to thereby limit the transmission of cable or conductor movement externally of the terminal block to the terminal elements.
    Type: Grant
    Filed: April 2, 1993
    Date of Patent: April 4, 1995
    Assignee: Orbital Engine Company (Australia) Pty, Limited
    Inventors: Christopher N. F. Sayer, David Shawcross
  • Patent number: 5379731
    Abstract: A two stroke cycle engine cylinder block (9) has exhaust ports (14) controlled by power valves which rotate on an axis extending longitudinally of the block (9). Along this axis the block (9) has a plurality of aligned recesses in which are located bearing members (24) for the power valves. Bores (25) in each bearing member (24) are axially aligned and the bearing members (24) immobilely retained in the aligned recesses by assembly of the exhaust manifold (16). Spigots on the power valves are received in the bores (25) and coupled together so that the power valves rotate in unison.
    Type: Grant
    Filed: December 2, 1993
    Date of Patent: January 10, 1995
    Assignee: Orbital Engine Company (Australia) Pty. Limited
    Inventor: Christopher N. F. Sayer
  • Patent number: 5377630
    Abstract: A multicylinder two-stroke cycle internal combustion engine (10) comprises an individual crankcase cavity (18) for each cylinder to receive the incoming air charge for that cylinder and a cylinder block (11) with at least two cylinders having cooperating crankcase cavities (18) provided with valve controlled intake ports (19) in a common wall (31) of the cylinder block (11). An air induction manifold (25) is detachably mounted to the common wall (31) to form a single air induction cavity (27), at least part of which is formed within the cylinder block (11), and has a single main inlet port for regulation of air inflow to the induction cavity (27). Individual passages (33) communicating each crankcase cavity inlet port (19) with the air induction cavity (27) are formed in the manifold (25). Acceptable performance with limited increase in the overall physical dimensions of the engine (10) can thus be obtained.
    Type: Grant
    Filed: August 30, 1993
    Date of Patent: January 3, 1995
    Assignee: Orbital Engine Company (Australia) Pty. Limited
    Inventors: Christopher K. Schlunke, Kenneth P. Seeber, Rodney A. R. Houston, Christopher N. F. Sayer
  • Patent number: 5245974
    Abstract: An internal combustion engine installation is provided which comprises an air compressor (20) to supply air to effect injection of the fuel for combustion in the engine, a fuel tank (12), an air/fuel separator (10) to receive vapor generated in the fuel tank (12) and separate the fuel in vapor from the air and a passage (25) communicating the separator with the inlet port of the compressor (20) so that when the compressor (20) is in operation at least part of the air taken in by the compressor (20) is drawn through the part of the separator (10) where the fuel is held to extract fuel therefrom.
    Type: Grant
    Filed: August 26, 1992
    Date of Patent: September 21, 1993
    Assignee: Orbital Engine Company (Australia) Pty. Limited
    Inventors: Stephen J. Watson, Darren A. Smith, Stuart A. Higgins, Christopher N. F. Sayer
  • Patent number: 4934329
    Abstract: A fuel injection system for a multi-cylinder internal combustion engine, which includes a rigid elongated unitary member incorporating a gas supply duct, a fuel supply duct and a fuel return duct, each of which extends in the direction of elongation of the unitary member. A separate fuel metering device and fuel injecting device is provided for each engine cylinder. The fuel metering device is arranged to deliver metered quantities of fuel to the fuel injection device and is in communication with the fuel supply and fuel return ducts so that fuel can be circulated through each of the fuel metering devices. The fuel injecting devices are each in communication with the gas duct and communicable with one of the engine cylinders. The fuel injection devices are adapted to effect delivery of a metered quantity of fuel entrained in gas supplied from the gas duct when the fuel injecting device is in fluid communication with a cylinder.
    Type: Grant
    Filed: January 30, 1989
    Date of Patent: June 19, 1990
    Assignee: Orbital Engine Company Proprietary Limited
    Inventors: Mark Lear, Sam R. Leighton, Christopher N. F. Sayer, Ian R. Thompson
  • Patent number: 4844339
    Abstract: A fuel injection apparatus for delivering a metered quantity of fuel to an engine comprising a valve controlled port through which the metered quantity of fuel is delivered to the engine the valve being resiliently urged to a position to close said port. Electromagnetic means operable when energized to displace said valve member from the closed position to permit delivery of the metered quantity of fuel through the port to the engine. The electromagnetic means including an armature member movable in a first direction in response to energizing of the electromagnetic means to effect the opening of the port. The armature having a limited free movement in the first and the opposite directions independent of the valve member when the electromagnetic means is not energized and the valve member is in the port closed position.
    Type: Grant
    Filed: March 11, 1988
    Date of Patent: July 4, 1989
    Assignee: Orbital Engine Company Proprietary Limited
    Inventors: Christopher N. F. Sayer, John R. Outram
  • Patent number: 4803968
    Abstract: A fuel metering apparatus having a metering chamber to hold fuel for subsequent delivery to an engine and a rigid metering member projecting into said chamber and linearly movable relative to the chamber to vary the extent of projection of the metering member into the chamber to thereby control the quantity of fuel displaceable from the chamber for delivery to an engine. An inextensible flexible member between secured to the metering member and to a motor that operate in accordance with the engine fuel demand, the motion of the motor being transmitted to the metering member through the inextensible flexible member. This inextensible flexible member preferably being adjustably coupled to the motor so the limit of movement of the metering member may be set as required.
    Type: Grant
    Filed: March 10, 1988
    Date of Patent: February 14, 1989
    Assignee: Orbital Engine Company Proprietary Limited
    Inventors: Peter W. Czwienczek, Christopher N. F. Sayer, Darren A. Smith, Michael L. McKay, Robin M. Briggs
  • Patent number: 4760832
    Abstract: A fuel metering and injection system for an internal combustion engine circulates fuel through a metering chamber (11) via valved fuel inlet and fuel outlet ports (25, 26) to prepare a metered quantity of fuel. Compressed gas is introduced into the metering chamber through a valved air inlet port (14) to displace the metered fuel and deliver it to the engine. Phasing of the valves is controlled to ensure that the fuel inlet and outlet valves (60, 61) are closed prior to opening of the air inlet valve (16), and that on completion of the injection phase residual gas in the metering chamber (11) is expelled through the fuel outlet port (26).
    Type: Grant
    Filed: October 14, 1986
    Date of Patent: August 2, 1988
    Assignee: Orbital Engine Company Proprietary Limited
    Inventors: Darren A. Smith, Michael L. McKay, Christopher N. F. Sayer
  • Patent number: 4754739
    Abstract: A fuel metering apparatus having a metering chamber to hold fuel for subsequent delivery to an engine. A rigid metering member projecting into the chamber linearly movable relative to the chamber to vary the extent of projection of the metering member into the chamber to thereby control the quantity of fuel displaceable from the chamber. An inextensible flexible member secured to the metering member and a motor operated in accordance with the engine fuel demand, the motion of the motor being transmitted to the metering member through the inextensible flexible member. The inextensible flexible member is preferably adjustably coupled to the motor so the limit of movement of the metering member may be set as required.
    Type: Grant
    Filed: May 23, 1986
    Date of Patent: July 5, 1988
    Assignee: Orbital Engine Company Proprietary Limited
    Inventors: Peter W. Czwienczek, Christopher N. F. Sayer, Darren A. Smith, Michael L. McKay, Robin M. Briggs
  • Patent number: RE34945
    Abstract: A fuel injection apparatus for delivering a metered quantity of fuel to an engine comprising a valve controlled port through which the metered quantity of fuel is delivered to the engine the valve being resiliently urged to a position to close said port. .Iadd.An .Iaddend..[.Electromagnetic means.]. .Iadd.electromagnetic element is provided which is .Iaddend.operable when energized to displace said valve member from the closed position to permit delivery of the metered quantity of fuel through the port to the engine. The electromagnetic .[.means including.]. .Iadd.element includes .Iaddend.an armature member movable in a first direction in response to energizing of the electromagnetic .[.means.]. .Iadd.element .Iaddend.to effect the opening of the port. The armature .[.having.]. .Iadd.has .Iaddend.a limited free movement in the first and the opposite directions independent of the valve member when the electromagnetic .[.means.]. .Iadd.means .Iaddend.
    Type: Grant
    Filed: December 18, 1991
    Date of Patent: May 23, 1995
    Assignee: Orbital Engine Company (Australia) Proprietary Limited
    Inventors: Christopher N. F. Sayer, John R. Outram