Patents by Inventor Mikhail Sorokine
Mikhail Sorokine 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).
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Patent number: 9651067Abstract: A system can include one or more valve arrangements with a working chamber to receive a working fluid at a first pressure, and a control chamber to receive fluid at a second pressure. A dynamic seal can be disposed on a land of a valve element. The valve arrangement may include a sleeve against which the dynamic seal is slidably engaged. The valve element may include a check stem. A pressure compensating system may be in communication with bores formed in with the valve element. A pressure system to monitor dynamic seal wear may be in communication with the control chamber of the valve arrangement.Type: GrantFiled: July 22, 2013Date of Patent: May 16, 2017Assignee: Caterpillar Inc.Inventors: Matthew J. Beschorner, Eric C. Hughes, Mikhail A. Sorokine, James A. Aardema, Thomas J. Hajek, Aleksandra M. Egelja
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Patent number: 9394928Abstract: A system can include one or more valve arrangements with a working chamber to receive a working fluid at a first pressure, and a control chamber to receive fluid at a second pressure. A dynamic seal can be disposed on a land of a valve element. A supply passage can be in communication between the control chamber and a tank and can include a check valve. A relief valve can be disposed between the check valve and the control chamber. A pilot pump and another relief valve may be disposed upstream of the check valve. The relief valve downstream of the check valve can have a higher pressure limit than the downstream one. A pressure sensor may be disposed between the check valve and the control chamber and used to warn the operator of a high pressure in the control chamber.Type: GrantFiled: March 15, 2013Date of Patent: July 19, 2016Assignee: Caterpillar Inc.Inventors: Matthew J. Beschorner, Aleksandar M. Egelja, Eric Hughes, Mikhail Sorokine
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Publication number: 20140034133Abstract: A system can include one or more valve arrangements with a working chamber to receive a working fluid at a first pressure, and a control chamber to receive fluid at a second pressure. A dynamic seal can be disposed on a land of a valve element. A supply passage can be in communication between the control chamber and a tank and can include a check valve. A relief valve can be disposed between the check valve and the control chamber. A pilot pump and another relief valve may be disposed upstream of the check valve. The relief valve downstream of the check valve can have a higher pressure limit than the downstream one. A pressure sensor may be disposed between the check valve and the control chamber and used to warn the operator of a high pressure in the control chamber.Type: ApplicationFiled: March 15, 2013Publication date: February 6, 2014Applicant: Caterpillar Inc.Inventors: Matthew J. Beschorner, Aleksandar M. Egelja, Eric Hughes, Mikhail Sorokine
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Publication number: 20140034135Abstract: A system can include one or more valve arrangements with a working chamber to receive a working fluid at a first pressure, and a control chamber to receive fluid at a second pressure. A dynamic seal can be disposed on a land of a valve element. The valve arrangement may include a sleeve against which the dynamic seal is slidably engaged. The valve element may include a check stem. A pressure compensating system may be in communication with bores formed in with the valve element. A pressure system to monitor dynamic seal wear may be in communication with the control chamber of the valve arrangement.Type: ApplicationFiled: July 22, 2013Publication date: February 6, 2014Applicant: Caterpillar Inc.Inventors: Matthew J. Beschorner, Eric C. Hughes, Mikhail A. Sorokine, James A. Aardema, Thomas J. Hajek, Aleksandra M. Egelja
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Patent number: 8234860Abstract: A control system for a machine is disclosed. The control system may have a pump, a low pressure reservoir, and at least one actuator connected to receive fluid pressurized by the pump and discharge fluid to the low pressure reservoir. The control system may also have a bypass passage situated to allow fluid to bypass the at least one actuator, and a warmup valve disposed within the bypass passage and being movable between a flow-passing position and a flow-blocking position. The control system may further have a hydraulic temperature sensor configured to generate a signal indicative of a temperature of the fluid, and a controller in communication with the pump, the warmup valve, and the hydraulic temperature sensor. The controller may be configured to move the warmup valve to the flow-passing position, fix a displacement position of the pump, and adjust an input speed of the pump in response to the signal.Type: GrantFiled: August 29, 2008Date of Patent: August 7, 2012Assignee: Caterpillar Inc.Inventors: Matthew J. Beschorner, Jason J. Podany, Aleksandar M. Egelja, Mikhail A. Sorokine, Benjamin Yoo, Manu Murthy
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Publication number: 20100122528Abstract: A hydraulic system for a machine is disclosed. The hydraulic system may have a pump, a tank, a first actuator with a head-end and a rod-end, and a first valve arrangement configured to control fluid flow from the pump to the first actuator and from the first actuator to the tank. The hydraulic system may also have a second actuator with a head-end and a rod-end, and a second valve arrangement configured to control fluid flow from the pump to the second actuator and from the second actuator to the tank. The hydraulic system may further have a third valve arrangement fluidly connected between the first and second valve arrangements to receive pressurized fluid from the pump in parallel with the first and second valve arrangements. The third valve arrangement may be configured to facilitate fluid regeneration of and supplemental flow to at least one of the first and second actuators.Type: ApplicationFiled: November 19, 2008Publication date: May 20, 2010Inventors: Matthew J. Beschorner, Aleksandar M. Egelja, Mikhail A. Sorokine, Vivek K. Dubey
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Publication number: 20100050621Abstract: A control system for a machine is disclosed. The control system may have a pump, a low pressure reservoir, and at least one actuator connected to receive fluid pressurized by the pump and discharge fluid to the low pressure reservoir. The control system may also have a bypass passage situated to allow fluid to bypass the at least one actuator, and a warmup valve disposed within the bypass passage and being movable between a flow-passing position and a flow-blocking position. The control system may further have a hydraulic temperature sensor configured to generate a signal indicative of a temperature of the fluid, and a controller in communication with the pump, the warmup valve, and the hydraulic temperature sensor. The controller may be configured to move the warmup valve to the flow-passing position, fix a displacement position of the pump, and adjust an input speed of the pump in response to the signal.Type: ApplicationFiled: August 29, 2008Publication date: March 4, 2010Inventors: Matthew J. Beschorner, Jason J. Podany, Aleksandar M. Egelja, Mikhail A. Sorokine, Benjamin Yoo, Manu Murthy
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Patent number: 7201096Abstract: A linear motor is provided including a stator having at least one electromagnetic coil and a rotor having at least one permanent magnet. The rotor is movable toward at least a first position when least one electromagnetic coil is energized and solely magnetically biased to a neutral position when the at least one electromagnetic coil is de-energized.Type: GrantFiled: June 6, 2005Date of Patent: April 10, 2007Assignee: Caterpillar IncInventors: Sabri Cetinkunt, Aleksandar M. Egelja, Mikhail A. Sorokine
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Patent number: 7194856Abstract: A hydraulic control system for a work machine is disclosed. The hydraulic control system has a source of pressurized fluid and at least one actuator having a first and a second chamber. The hydraulic control system also has a first independent metering valve disposed between the source and the first chamber, and a second independent metering valve disposed between the reservoir and the second chamber. The first and second independent metering valves each have a valve element movable from a flow blocking to a flow passing position to facilitate movement of the at least one actuator. The hydraulic control system further has an accumulator and a third independent metering valve disposed in parallel with the first independent metering valve and between the accumulator and the first chamber. The third independent metering valve is configured to selectively communicate the accumulator with the first chamber to cushion movement of the at least one actuator.Type: GrantFiled: May 31, 2005Date of Patent: March 27, 2007Assignees: Caterpillar Inc, Shin Caterpillar Mitsubishi LtdInventors: Pengfei Ma, Aleksandar M. Egelja, Mikhail A. Sorokine
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Publication number: 20060272494Abstract: A linear motor is provided including a stator having at least one electromagnetic coil and a rotor having at least one permanent magnet. The rotor is movable toward at least a first position when least one electromagnetic coil is energized and solely magnetically biased to a neutral position when the at least one electromagnetic coil is de-energized.Type: ApplicationFiled: June 6, 2005Publication date: December 7, 2006Inventors: Sabri Cetinkunt, Aleksandar Egelja, Mikhail Sorokine
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Publication number: 20060266027Abstract: A hydraulic control system for a work machine is disclosed. The hydraulic control system has a source of pressurized fluid and at least one actuator having a first and a second chamber. The hydraulic control system also has a first independent metering valve disposed between the source and the first chamber, and a second independent metering valve disposed between the reservoir and the second chamber. The first and second independent metering valves each have a valve element movable from a flow blocking to a flow passing position to facilitate movement of the at least one actuator. The hydraulic control system further has an accumulator and a third independent metering valve disposed in parallel with the first independent metering valve and between the accumulator and the first chamber. The third independent metering valve is configured to selectively communicate the accumulator with the first chamber to cushion movement of the at least one actuator.Type: ApplicationFiled: May 31, 2005Publication date: November 30, 2006Inventors: Pengfei Ma, Aleksandar Egelja, Mikhail Sorokine
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Publication number: 20060065867Abstract: A valve for a fluid circuit is disclosed. The valve has a main valve element with a first end and a second end. The main valve element is movable between a flow-passing and a flow-blocking position in response to fluid pressure exerted on the first and second ends. The valve also has a solenoid mechanism operatively associated with the main valve element to move the main valve element toward one of the flow-passing and the flow-blocking positions. The valve further has a main valve spring configured to bias the main valve element in opposition to movement caused by the solenoid mechanism. The valve additionally has a relief valve element configured to communicate a fluid with the first end of the main valve element in response to a fluid pressure to initiate movement of the main valve element.Type: ApplicationFiled: November 30, 2004Publication date: March 30, 2006Inventors: Mark Vonderwell, Yun Guo, Mikhail Sorokine, Aleksandar Egelja, Pengfei Ma
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Patent number: 6883313Abstract: A pump displacement control arrangement uses the inherent swivel torques of a fluid translating device in cooperation with a proportional force feedback to more consistently and precisely control the displacement of the fluid translating device. The subject invention uses a variable displacement control arrangement having an actuator mechanism coupled to a swash plate of the fluid translating device and controlled by a proportional valve arrangement to control the displacement of the fluid translating device. A force feedback mechanism is disposed between the actuator mechanism and the proportional valve arrangement and provides a more precise and repeatable displacement control.Type: GrantFiled: November 21, 2002Date of Patent: April 26, 2005Assignee: Caterpillar IncInventors: Aleksandar M. Egelja, Mikhail A. Sorokine, Rangamani Srikrishnan, Srikishnan T. Tolappa
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Publication number: 20040099136Abstract: A pump displacement control arrangement uses the inherent swivel torques of a fluid translating device in cooperation with a proportional force feedback to more consistently and precisely control the displacement of the fluid translating device. The subject invention uses a variable displacement control arrangement having an actuator mechanism coupled to a swash plate of the fluid translating device and controlled by a proportional valve arrangement to control the displacement of the fluid translating device. A force feedback mechanism is disposed between the actuator mechanism and the proportional valve arrangement and provides a more precise and repeatable displacement control.Type: ApplicationFiled: November 21, 2002Publication date: May 27, 2004Inventors: Aleksandar M. Egelja, Mikhail A. Sorokine, Srikishnan T. Tolappa, Rangamami Srikrishnan