Patents by Inventor Rebecca Spence
Rebecca Spence 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: 9945373Abstract: A pump may have a first chamber and a solenoid coil to control movement of a first valve member. A second chamber may have a second valve member to control fluid moving into a third chamber. A first fluid passageway may link the first and second chambers, a second passageway may link second and third chambers and a third passageway may link third and fourth chambers. After pressurizing the third chamber causing fluid to flow into and leave a fourth chamber, the third chamber depressurizes due to downward movement of a plunger. Upon depressurization with a solenoid coil energized, second valve member floats and then moves against a valve seat. While the second valve member is moving toward the valve seat, the solenoid coil is de-energized causing the first valve member to move and strike the second valve member when the second valve member is moving at maximum velocity.Type: GrantFiled: June 21, 2016Date of Patent: April 17, 2018Assignees: DENSO International America, Inc., DENSO CORPORATIONInventors: Tsutomu Furuhashi, Rebecca Spence, Joseph Lubinski, Dhyana Ramamurthy, Kaoru Oda
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Publication number: 20160305418Abstract: A pump may have a first chamber and a solenoid coil to control movement of a first valve member. A second chamber may have a second valve member to control fluid moving into a third chamber. A first fluid passageway may link the first and second chambers, a second passageway may link second and third chambers and a third passageway may link third and fourth chambers. After pressurizing the third chamber causing fluid to flow into and leave a fourth chamber, the third chamber depressurizes due to downward movement of a plunger. Upon depressurization with a solenoid coil energized, second valve member floats and then moves against a valve seat. While the second valve member is moving toward the valve seat, the solenoid coil is de-energized causing the first valve member to move and strike the second valve member when the second valve member is moving at maximum velocity.Type: ApplicationFiled: June 21, 2016Publication date: October 20, 2016Inventors: Tsutomu FURUHASHI, Rebecca SPENCE, Joseph LUBINSKI, Dhyana RAMAMURTHY, Kaoru ODA
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Patent number: 9435335Abstract: A pump may have a first chamber and a solenoid coil to control movement of a first valve member. A second chamber may have a second valve member to control fluid moving into a third chamber. A first fluid passageway may link the first and second chambers, a second passageway may link second and third chambers and a third passageway may link third and fourth chambers. After pressurizing the third chamber causing fluid to flow into and leave a fourth chamber, the third chamber depressurizes due to downward movement of a plunger. Upon depressurization with a solenoid coil energized, second valve member floats and then moves against a valve seat. While the second valve member is moving toward the valve seat, the solenoid coil is de-energized causing the first valve member to move and strike the second valve member when the second valve member is moving at maximum velocity.Type: GrantFiled: February 3, 2014Date of Patent: September 6, 2016Assignees: Denso International America, Inc., DENSO CORPORATIONInventors: Tsutomu Furuhashi, Rebecca Spence, Joseph Lubinski, Dhyana Ramamurthy, Kaoru Oda
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Patent number: 9435334Abstract: A pump may have a first chamber and a solenoid coil to control movement of a first valve member. A second chamber may have a second valve member to control fluid moving into a third chamber. A first fluid passageway may link the first and second chambers, a second passageway may link second and third chambers and a third passageway may link third and fourth chambers. After pressurizing the third chamber causing fluid to flow into and leave a fourth chamber, the third chamber depressurizes due to downward movement of a plunger. Upon depressurization with a solenoid coil energized, second valve member floats and then moves against a valve seat. While the second valve member is moving toward the valve seat, the solenoid coil is de-energized causing the first valve member to move and strike the second valve member when the second valve member is moving at maximum velocity.Type: GrantFiled: February 3, 2014Date of Patent: September 6, 2016Assignees: Denso International America, Inc., DENSO CORPORATIONInventors: Tsutomu Furuhashi, Rebecca Spence, Joseph Lubinski, Dhyana Ramamurthy, Kaoru Oda
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Patent number: 8979514Abstract: A pump includes a pump casing defining a first chamber and a second chamber, and fluid moves from the first chamber to the second chamber during a stroke. The pump also includes a needle that is movably disposed in the first chamber and a valve carriage that is movably disposed in the second chamber. The valve carriage includes an internal stop, and the valve carriage also includes a cavity therein that is partially defined by the internal stop. The pump further includes a valve that is movably disposed within the cavity of the valve carriage, and the valve is operable to be impacted by the needle during the stroke. Also, the needle is operable to impact the valve carriage during the stroke. Moreover, the valve is operable to impact the internal stop during the stroke at a time different from the needle impacting the valve carriage.Type: GrantFiled: January 23, 2012Date of Patent: March 17, 2015Assignees: DENSO International America, Inc., Denso CorporationInventors: Tsutomu Furuhashi, Dhyana Ramamurthy, Joseph Lubinski, Rebecca Spence
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Publication number: 20140161634Abstract: A pump may have a first chamber and a solenoid coil to control movement of a first valve member. A second chamber may have a second valve member to control fluid moving into a third chamber. A first fluid passageway may link the first and second chambers, a second passageway may link second and third chambers and a third passageway may link third and fourth chambers. After pressurizing the third chamber causing fluid to flow into and leave a fourth chamber, the third chamber depressurizes due to downward movement of a plunger. Upon depressurization with a solenoid coil energized, second valve member floats and then moves against a valve seat. While the second valve member is moving toward the valve seat, the solenoid coil is de-energized causing the first valve member to move and strike the second valve member when the second valve member is moving at maximum velocity.Type: ApplicationFiled: February 3, 2014Publication date: June 12, 2014Applicants: DENSO CORPORATION, DENSO International America, Inc.Inventors: Tsutomu Furuhashi, Rebecca Spence, Joseph Lubinski, Dhyana Ramamurthy, Kaoru Oda
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Publication number: 20140161631Abstract: A pump may have a first chamber and a solenoid coil to control movement of a first valve member. A second chamber may have a second valve member to control fluid moving into a third chamber. A first fluid passageway may link the first and second chambers, a second passageway may link second and third chambers and a third passageway may link third and fourth chambers. After pressurizing the third chamber causing fluid to flow into and leave a fourth chamber, the third chamber depressurizes due to downward movement of a plunger. Upon depressurization with a solenoid coil energized, second valve member floats and then moves against a valve seat. While the second valve member is moving toward the valve seat, the solenoid coil is de-energized causing the first valve member to move and strike the second valve member when the second valve member is moving at maximum velocity.Type: ApplicationFiled: February 3, 2014Publication date: June 12, 2014Applicants: DENSO CORPORATION, DENSO International America, Inc.Inventors: Tsutomu Furuhashi, Rebecca Spence, Joseph Lubinski, Dhyana Ramamurthy, Kaoru Oda
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Patent number: 8677977Abstract: A pump may have a first chamber and a solenoid coil to control movement of a first valve member. A second chamber may have a second valve member to control fluid moving into a third chamber. A first fluid passageway may link the first and second chambers, a second passageway may link second and third chambers and a third passageway may link third and fourth chambers. After pressurizing the third chamber causing fluid to flow into and leave a fourth chamber, the third chamber depressurizes due to downward movement of a plunger. Upon depressurization with a solenoid coil energized, second valve member floats and then moves against a valve seat. While the second valve member is moving toward the valve seat, the solenoid coil is de-energized causing the first valve member to move and strike the second valve member when the second valve member is moving at maximum velocity.Type: GrantFiled: April 21, 2011Date of Patent: March 25, 2014Assignees: DENSO International America, Inc., DENSO CORPORATIONInventors: Tsutomu Furuhashi, Rebecca Spence, Joseph Lubinski, Dhyana Ramamurthy, Kaoru Oda
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Publication number: 20120251367Abstract: A pump includes a pump casing defining a first chamber and a second chamber, and fluid moves from the first chamber to the second chamber during a stroke. The pump also includes a needle that is movably disposed in the first chamber and a valve carriage that is movably disposed in the second chamber. The valve carriage includes an internal stop, and the valve carriage also includes a cavity therein that is partially defined by the internal stop. The pump further includes a valve that is movably disposed within the cavity of the valve carriage, and the valve is operable to be impacted by the needle during the stroke. Also, the needle is operable to impact the valve carriage during the stroke. Moreover, the valve is operable to impact the internal stop during the stroke at a time different from the needle impacting the valve carriage.Type: ApplicationFiled: January 23, 2012Publication date: October 4, 2012Applicants: DENSO CORPORATION, DENSO INTERNATIONAL AMERICA, INC.Inventors: Tsutomu Furuhashi, Dhyana Ramamurthy, Joseph Lubinski, Rebecca Spence
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Publication number: 20110265765Abstract: A pump may have a first chamber and a solenoid coil to control movement of a first valve member. A second chamber may have a second valve member to control fluid moving into a third chamber. A first fluid passageway may link the first and second chambers, a second passageway may link second and third chambers and a third passageway may link third and fourth chambers. After pressurizing the third chamber causing fluid to flow into and leave a fourth chamber, the third chamber depressurizes due to downward movement of a plunger. Upon depressurization with a solenoid coil energized, second valve member floats and then moves against a valve seat. While the second valve member is moving toward the valve seat, the solenoid coil is de-energized causing the first valve member to move and strike the second valve member when the second valve member is moving at maximum velocity.Type: ApplicationFiled: April 21, 2011Publication date: November 3, 2011Applicants: DENSO CORPORATION, DENSO INTERNATIONAL AMERICA, INC.Inventors: Tsutomu Furuhashi, Rebecca Spence, Joseph Lubinski, Dhyana Ramamurthy, Kaoru Oda