Including Application Of Separate Fluid To Pump Valve Patents (Class 417/432)
  • Patent number: 11441552
    Abstract: A reciprocating piston machine for compressing a fluid, more particularly ambient air, for a compressed air system of a motor vehicle, includes a cylinder housing and a cylinder head constructed layer by layer and including a valve carrier element with an outlet valve, a chamber plate and a head plate with a pressure medium outlet. A cooling medium channel for cooling at least a partial region of the cylinder head and an outlet channel for connecting the outlet valve to the pressure medium outlet are provided and extend through components of the cylinder head, at least in portions. In order to improve the cooling, at least a partial portion of the cooling medium channel and a partial portion of the outlet channel are allocated to the cylinder housing.
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: September 13, 2022
    Assignee: Voith Patent GmbH
    Inventor: Marius Burkauskas
  • Patent number: 10429095
    Abstract: A compressor unit for heating and sanitizing water for human use including a combustion housing defining a combustion chamber. A heat exchanger is partially supported in the combustion chamber and configured to heat water. An igniter ignites fuel and air in the combustion chamber. The compressor unit further includes a compression housing defining a compression chamber in fluid communication with the combustion chamber. An intake valve is configured to meter air into the compression chamber. An oscillation plate is supported in the compression chamber and movable between first and second positions wherein movement of the oscillation plate between the two positions compresses air directed toward the combustion chamber. A sealed case around a heat fan and an attached exhaust pipe contain exhaust gasses after a release valve. A case for a crankshaft contains lubrication and is sealed with a lid similar to an oil pan.
    Type: Grant
    Filed: February 4, 2016
    Date of Patent: October 1, 2019
    Inventor: Todd Gerard Schmidt
  • Publication number: 20150078940
    Abstract: An electric pump includes a cylinder, a piston, a motor, and a discharge valve. The cylinder includes a valve port and a discharge port, which is in communication with the valve port. The discharge valve opens and closes the valve port. When the piston is moved forth to narrow a void in the cylinder, air is compressed in the cylinder. The discharge valve opens when operated by the piston that moves forth. The discharge valve opens and discharges compressed air from the valve port so that fluid including air is discharged from the discharge port.
    Type: Application
    Filed: September 15, 2014
    Publication date: March 19, 2015
    Applicant: ASMO CO., LTD.
    Inventors: Tomoyuki Kikuta, Keita Kawai
  • Patent number: 8585909
    Abstract: This invention relates generally to a method and apparatus to allow high pressure pumping a fluid mixture of solid and/or abrasive particles with a liquid, and separating the fluid mixture into a solid and/or abrasive particle component and a cleaned liquid component. An embodiment includes surrounding the pump plunger/piston, and timely cycling the cleaned liquid to flush the pump check valves to displace erosive solid and/or abrasive material. Consequently, this invention allows for proper check valve sealing, extends the life of check valves, extends the life of the pump, and improves efficiency.
    Type: Grant
    Filed: September 1, 2012
    Date of Patent: November 19, 2013
    Inventors: Wesley Mark McAfee, Mark Franklin Alley
  • Patent number: 8277206
    Abstract: A pressure enclosure includes a first component having an opening, a second component coupled to the first component in a position over the opening, a third component positioned between the first and second components and covering the opening, and a load chamber defined by a space between the second and third components and configured such that pressure in the load chamber biases the third component against the first component to seal the opening. The pressure enclosure may be a cylinder of a pump for pressurizing fluid or gas, with the first component a cylinder body, the second component an end cap and the third component a valve body, with the load chamber biasing the valve body against the cylinder body.
    Type: Grant
    Filed: April 10, 2008
    Date of Patent: October 2, 2012
    Assignee: Flow International Corporatioin
    Inventors: Chidambaram Raghavan, Kraig T. Kostohris, Katherine M. Madden, Shawn M. Callahan, Sigurd C. Mordre, Mohamed A. Hashish, Olivier L. Tremoulet, Jr.
  • Patent number: 7863465
    Abstract: The present invention relates to novel enfumafungin derivatives of formula I and pharmaceutically acceptable salts thereof, their synthesis, and their use as inhibitors of (1,3)-?-D-glucan synthase. The present compounds and pharmaceutically acceptable salts thereof, as well as pharmaceutical compositions comprising the present compounds and pharmaceutically acceptable salts thereof, are useful for treating or preventing antifungal infections and associated diseases and conditions.
    Type: Grant
    Filed: March 29, 2007
    Date of Patent: January 4, 2011
    Assignees: Merck Sharp & Dohme Corp., Scynexis, Inc.
    Inventors: James M. Balkovec, Frances Aileen Bouffard, Bruno Tse, James Dropinski, Dongfang Meng, Mark L. Greenlee, Michael Peel, Weiming Fan, Ahmed Mamai, Hao Liu, Keqaing Li
  • Patent number: 6953326
    Abstract: An air pump includes a connector connecting to an air nozzle of an object to be inflated, a holder block connected to the connector and having a valve chamber, an air cylinder air inlet and a manual charge air inlet extended from the vale chamber to the rear side thereof, and an air passage extended from the valve chamber to the inside of the connector, a press button mounted in the holder block and movable between a first position and a second position, a fixed cylinder connected to the holder block and holding an air cylinder, and a movable cylinder sleeved onto the fixed cylinder for reciprocating to pump air into the fixed air cylinder.
    Type: Grant
    Filed: April 25, 2003
    Date of Patent: October 11, 2005
    Inventor: Lo-Pin Wang
  • Patent number: 5456582
    Abstract: A compressor has an air inlet valve for controlling air intake when demand for service air from the compressor changes. The valve has a housing with an inlet and an outlet which is connected to a compressor. A rod in the housing is movable relative to the housing and has a shoulder and a piston. A movable valve member is mounted on the rod and a spring is interposed between the piston and the housing for moving the shoulder into engagement with the valve member and biasing the valve member toward the closed position. The housing has a chamber on each side of the piston for receiving air that discharges from the compressor. Air pressure is connected to one of the chambers to move the valve member toward the closed position when the pressure of air in the receiver tank exceeds a set-point.
    Type: Grant
    Filed: December 23, 1993
    Date of Patent: October 10, 1995
    Assignee: Sullair Corporation
    Inventors: Mark A. Firnhaber, Sylvester Poplawski
  • Patent number: 5419689
    Abstract: A vacuum pump which includes an oil pump for raising the pressure of oil in the vacuum pump during operation of the vacuum pump and an inlet valve for isolating the vacuum pump inlet during non-operation of the vacuum pump. The vacuum pump has an operating valve acting in an oil line between the oil pump and the inlet valve and in an oil line between the inlet valve and an oil reservoir. The operating valve is movable by means of oil pressure between a second position associated with vacuum pump operation in which the oil line between the inlet valve and the oil reservoir is closed and a first position associated with vacuum pump non-operation in which the oil line between the inlet valve and the oil reservoir is open. A means is provided to allow high pressure oil from the oil pump to communicate with the inlet valve in at least the second position.
    Type: Grant
    Filed: November 10, 1993
    Date of Patent: May 30, 1995
    Assignee: The BOC Group plc
    Inventor: Alan E. K. Holbrook
  • Patent number: 4995794
    Abstract: A vacuum pump comprising a pumping chamber having an inlet and an outlet through which gas from an enclosure connectible to the inlet can be pumped, in which means are provided to allow the selective introduction through the chamber of a flow of recirculating purge gas to effect pumping of the chamber, the means preferably being such that the recirculating purge gas is produced in a gas circuit including the inlet and the outlet and also including a filter.
    Type: Grant
    Filed: April 21, 1989
    Date of Patent: February 26, 1991
    Assignee: The BOC Group, plc
    Inventor: Henryk Wycliffe
  • Patent number: 4921406
    Abstract: The invention relates to a mechanical vacuum pump having a displacement member (2) and a casing (1) which is provided with an inlet channel (3) on the suction side and an outlet channel (4) on the discharge side. A spring-loaded non-return flap valve (5) is incorporated into the outlet channel (4). Upstream of this flap (5), a gas jet pump (7, 8) is installed in the outlet channel (4), the jet direction being parallel to the sealing surface of the non-return flap valve (5).This gas jet pump allows to significantly increase the final vacuum of the mechanical vacuum pump and to improve the cooling of the pump.
    Type: Grant
    Filed: January 4, 1989
    Date of Patent: May 1, 1990
    Assignee: Alcatel Hochvakuumtechnik GmbH
    Inventor: Heinz-Dieter Burger
  • Patent number: 4188174
    Abstract: A valve which is resistant to wear caused by particles trapped between the valve seat and the valve member or poppet when the valve closes, including an outlet for directing washing fluid at the valve seat and/or sealing face of the poppet and means for supplying pressured fluid to the outlet at the time when the valve is closing.
    Type: Grant
    Filed: September 2, 1977
    Date of Patent: February 12, 1980
    Assignee: California Institute of Technology
    Inventor: Gerald S. Perkins
  • Patent number: 4177016
    Abstract: One or a plurality of positive displacement slurry pumps are connected to common intake and discharge manifolds at a typical slurry pipeline pumping station. Each pump is connected at its inlet by inlet piping from the intake manifold through an intake isolation valve with a flushing water inlet between the intake isolation valve and the pump. Similarly, each pump is connected at its outlet by outlet piping to the outlet manifold through an outlet isolation valve with a pump drain between the outlet isolation valve and the pump. Conventional pulsation dampeners are connected to the piping at least at the pump outlet and communicate a volume of gas under pressure to the pump for dampening of shock waves. The inlet and outlet piping has a pipe length and slope between the pump on the high side to the station intake manifold and to the discharge manifold on the low side.
    Type: Grant
    Filed: April 17, 1978
    Date of Patent: December 4, 1979
    Assignee: Bechtel International Corporation
    Inventor: Thomas C. Aude