Spring Or Fluid Biased In Opposite Direction Patents (Class 418/246)
  • Publication number: 20150125332
    Abstract: A pump having a stroke ring which has an axial recess, a rotor which is received in the axial recess so as to be rotatable relative to the stroke ring, wherein the rotor has radial recesses in which delivery elements are displaceable received as viewed in a radial direction, a side plate which closes off the axial recess on a first side, a pressure plate which closes off the axial recess on a second side, wherein the pressure plate has at least one opening, wherein a pressure region of the pump is fluidically connected to external surroundings of the pressure plate through the at least one opening, and wherein at least one fluid path is provided from the pressure region of the pup into an under-vane region of the delivery elements, and a cold-start plate which is preloaded against the pressure plate by means of a spring element such that, at least when the pump is at a stand-still, the cold-start plate closes the at least one opening in the pressure plate to the external surroundings of the pressure plate.
    Type: Application
    Filed: May 15, 2013
    Publication date: May 7, 2015
    Inventors: Kerstin Rosenkranz, Boris Zinke
  • Patent number: 8684713
    Abstract: A rotor type pump is provided. A rotor rotates and closely contacts an inner surface of a chamber, and a cam controls a sealing part, so that during a compression procedure, the sealing part, a convex surface of the rotor, and an inner surface of the chamber form a substantially hermetic space, and when a gas in the chamber is compressed to a set pressure, the compressed gas is guided out. Therefore, a smooth surface of the rotor closely contacts the inner surface of the chamber, and the gas in the chamber is compressed in a rotational manner, in which the to-and-fro movement of a piston is not required, and a dead point is prevented, so that operation is smooth and noise is not easily generated. Further, the rotor type pump does not need to use a lubricating fluid and offers extremely large compression capacity and excellent efficiency.
    Type: Grant
    Filed: August 27, 2010
    Date of Patent: April 1, 2014
    Inventor: Pang-Chian Lio
  • Patent number: 8297252
    Abstract: A rotary internal combustion engine including a rotor assembly and a shaft, whereby the rotor assembly is mounted upon the shaft. The rotary internal combustion engine also includes a first vane assembly and a second vane assembly. A casing assembly houses the rotor assembly. In addition, a cooling system includes first and second sides. The cooling system houses the casing assembly. Furthermore, a first plate assembly mounts onto the casing assembly and the cooling system at the first side, and a second plate assembly mounts onto the casing assembly and the cooling system at the second side.
    Type: Grant
    Filed: July 23, 2009
    Date of Patent: October 30, 2012
    Inventor: Pedro Julio Landin
  • Patent number: 7117841
    Abstract: K. Engine (KE) is rotary internal combustion engine, combination Reciprocating Engine (RE) and Gas Turbine (GT) comprising coaxially separate piston rotary compressor and turbine having housings with annular channels, outside combustion chambers (CH) unified with rotary valve mechanisms, staggered partitions dividing the annular channels for separate cylinders or freely passing the pistons; control means governing the partitions allow operational adjustment displacement volume KE without a brake effect; separate CHs secure ideal combustion in constant volume, unrestricted analog of advance of an ignition and forced ventilation; combined Otto- Brighton cycle and simple design provide high efficiency and reliability, great fuel economy, small sound and pollution; optimal work diapason KE is wider of both GT and RE; weight and size KE led to RE of the same displacement volume is 10 times less but more power and torque.
    Type: Grant
    Filed: September 14, 2004
    Date of Patent: October 10, 2006
    Inventor: Georgi Joseph Kernes
  • Patent number: 6976832
    Abstract: A fluid rotary machine (10) includes an inner housing (12) provided with a manifold (68) for directing working fluid through the machine (10) and an outer housing (14) coupled to the inner housing (12) so that the outer housing (14) can rotate relative to the inner housing (12). A plurality of swinging gates (16) are supported along one longitudinal edge in corresponding sockets (38) formed along the inner circumferential surface (32) of outer housing (14). A plurality of elongated lobes (30) are supported on and evenly spaced about the inner housing (12). There is one intake port (24) and one exhaust port (26) between adjacent lobes (30). The gates (16) are biased so as to ordinarily seal against the inner housing (12). High pressure fluid enters through the inlet port (24) to a region between a lobe (30) and gate (16) causing the outer housing (14) to rotate. Eventually the gate (16) wipes across an exhaust port (26) venting the high pressure fluid through the exhaust port.
    Type: Grant
    Filed: May 30, 2000
    Date of Patent: December 20, 2005
    Assignee: Merlin Corporation Pty. Ltd.
    Inventors: Daryl Wheeler, Lui Lau, Ben Dyktynski
  • Patent number: 6905322
    Abstract: A motor for converting fluid pressure to rotational motivation, and pump for moving fluid, is provided. The motor/pump includes a drum provided within a cylindrical cavity defined by a housing. Vane assemblies are provided which extend through the inner drum, and are actuated to extend and retract through their operable coupling to a cam provided within the inner drum. As the inner drum rotates, the vanes extend and retract, alternately increasing and decreasing their drag coefficient, causing pressurized fluid admitted into the interior to drive the vanes and inner drum in a single direction. Alternatively, a power source may be coupled to the motor to drive the motor, thereby causing it to act as a pump for moving fluid from one location to another.
    Type: Grant
    Filed: September 24, 2002
    Date of Patent: June 14, 2005
    Assignee: Thermal Dynamics, Inc.
    Inventor: Edward L. Simonds
  • Patent number: 6283728
    Abstract: A plurality of rotary assemblies driven by gas pressure having internal cam activated retractable gates selectively coupled to a rotary compressor. The rotary compressor is selectively coupled through a clutch to a shaft. The shaft is rotated by the plurality of rotor engine assemblies that are driven by gas pressure. A gate is coupled to a cam follower bearing that rides on an internal surface of the rotor housing, causing the gates to form chambers within the rotor as well as move out of position to pass a chamber divider. The shaft may be coupled to a load to do work.
    Type: Grant
    Filed: January 5, 2000
    Date of Patent: September 4, 2001
    Inventor: Constantin Tomoiu
  • Patent number: 6129068
    Abstract: A rotary engine (10) is provided having a housing (11), a rotor (34) mounted within the housing, an intake manifold 21, an exhaust manifold (33) and a reciprocating combustion containment valve (42). The rotor has a base (35) and a shoulder (36) extending from the base. A fuel injector (23), air injector (25) and spark plug (27) are all coupled to the intake manifold. The rotor is coupled to a cam (40) having a cam follower (43) thereon coupled to the combustion containment valve, whereby the movement of the combustion containment valve is synchronized with the movement of the rotor shoulder.
    Type: Grant
    Filed: September 18, 1998
    Date of Patent: October 10, 2000
    Inventor: John L. Wingate, Jr.
  • Patent number: 4075981
    Abstract: A rotary internal combustion engine is disclosed herein and includes two confronting but spaced apart side casings which comprise part of the overall engine housing and a rotor located between the side casings, mounted around a rotatable shaft and extending between the casings. The engine disclosed herein has a number of improved features including improved sealing vanes which cooperate with the rotor and side casings to define various function chambers in the engine. The engine also includes more efficient combustion chambers including improved check valve mechanisms for introducing fuel into the combustion chambers. The engine also provides greater power generation due to an improved angle of combustion onto the lobes of the rotor.
    Type: Grant
    Filed: April 15, 1976
    Date of Patent: February 28, 1978
    Assignee: Duane Burton
    Inventor: David L. Durst