Patents by Inventor Majo Cecur
Majo Cecur 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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Publication number: 20150122220Abstract: A hydraulic lash adjuster for an engine valve train has a hydraulic lash adjusting arrangement for automatically compensating for lash in an engine valve train, and a lost motion arrangement for inhibiting motion induced in the valve train in response to a lift profile of a rotating cam from being transferred to an engine valve.Type: ApplicationFiled: July 5, 2013Publication date: May 7, 2015Inventor: Majo Cecur
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Patent number: 8752513Abstract: A rocker arm for engaging a cam is disclosed. An outer arm and inner arm are configured to transfer motion to a valve of an internal combustion engine. A latching mechanism includes a latch, sleeve and orientation member. The sleeve engages the latch and a bore in the inner arm, and also provides an opening for an orientation member used in providing the correct orientation for the latch with respect to the sleeve and the inner arm. The sleeve, latch and inner arm have reference marks used to determine the optimal orientation for the latch.Type: GrantFiled: March 18, 2011Date of Patent: June 17, 2014Assignee: Eaton CorporationInventors: Austin Zurface, Andrei Dan Radulescu, Majo Cecur, Philip M. Kline, Tony Gordon, James R. Sheren
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Patent number: 8726862Abstract: A rocker arm for engaging a cam is disclosed. An outer arm and inner arm are configured to transfer motion to a valve of an internal combustion engine. A latching mechanism includes a latch, sleeve and orientation member. The sleeve engages the latch and a bore in the inner arm, and also provides an opening for an orientation member used in providing the correct orientation for the latch with respect to the sleeve and the inner arm. The sleeve, latch and inner arm have reference marks used to determine the optimal orientation for the latch.Type: GrantFiled: March 18, 2011Date of Patent: May 20, 2014Assignee: Eaton CorporationInventors: Austin Zurface, Andrei Dan Radulescu, Majo Cecur, Philip M. Kline, Tony Gordon, James R. Sheren
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Patent number: 8651073Abstract: A lift-control device for a poppet valve of an internal-combustion engine including a first valve-lift means, a second valve-lift means, and a means for selective de-activation of the second valve-lift means. In an embodiment, the first valve-lift means is configured to define a first valve-lift law and is operatively connected with a rocker that acts on a stem of said valve to move said stem according to the first valve-lift law; and the second valve-lift means is configured to define a second valve-lift law and is operatively connected with the rocker. In an embodiment, the first valve-lift means comprises a profile of a cam or eccentric acting on the rocker to cause it to oscillate about a first axis so as to move the valve stem according to the first valve-lift law; and the second valve-lift means comprises an auxiliary rocker that co-operates in contact with the first valve-lift means.Type: GrantFiled: July 27, 2007Date of Patent: February 18, 2014Assignee: Eaton S.R.L. Con Unico SocioInventor: Majo Cecur
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Patent number: 8573171Abstract: A valve control device for an internal combustion engine with an engine valve and a camshaft having a cam profile including a first lift profile is disclosed. The device includes a first body and second body. The device is configurable in first and second configurations. When in the first configuration, relative movement between the first and second body, caused when said first lift profile engages a cam engagement surface, inhibits a valve actuating linkage from actuating said engine valve. Embodiments of the device include a means which, when in the second configuration, prevents relative movement between the first and second bodies when the first lift profile engages the cam engagement surface to enable the valve actuating linkage to actuate said engine valve, and when the device is in the second configuration, the means may be arranged so substantially all of the force exerted as the valve is actuated is compressive.Type: GrantFiled: August 4, 2010Date of Patent: November 5, 2013Assignee: Eaton SRLInventors: Majo Cecur, Fabiano Contarin, Nicola Andrisani, Marco Querio
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Publication number: 20120186546Abstract: A valve control device for an internal combustion engine with an engine valve and a camshaft having a cam profile including a first lift profile is disclosed. The device includes a first body and second body. The device is configurable in first and second configurations. When in the first configuration, relative movement between the first and second body, caused when said first lift profile engages a cam engagement surface, inhibits a valve actuating linkage from actuating said engine valve. Embodiments of the device include a means which, when in the second configuration, prevents relative movement between the first and second bodies when the first lift profile engages the cam engagement surface to enable the valve actuating linkage to actuate said engine valve, and when the device is in the second configuration, the means may be arranged so substantially all of the force exerted as the valve is actuated is compressive.Type: ApplicationFiled: August 4, 2010Publication date: July 26, 2012Applicant: EATON SRLInventors: Majo Cecur, Fabiano Contarin, Nicola Andrisani, Marco Querio
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Publication number: 20110226208Abstract: A rocker arm for engaging a cam is disclosed. An outer arm and inner arm are configured to transfer motion to a valve of an internal combustion engine. A latching mechanism includes a latch, sleeve and orientation member. The sleeve engages the latch and a bore in the inner arm, and also provides an opening for an orientation member used in providing the correct orientation for the latch with respect to the sleeve and the inner arm. The sleeve, latch and inner arm have reference marks used to determine the optimal orientation for the latch.Type: ApplicationFiled: March 18, 2011Publication date: September 22, 2011Applicant: Eaton CorporationInventors: Austin Zurface, Andrei Dan Radulescu, Majo Cecur, Philip M. Kline, Tony Gordon, James R. Sheren
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Publication number: 20110226209Abstract: A rocker arm for engaging a cam is disclosed. An outer arm and inner arm are configured to transfer motion to a valve of an internal combustion engine. A latching mechanism includes a latch, sleeve and orientation member. The sleeve engages the latch and a bore in the inner arm, and also provides an opening for an orientation member used in providing the correct orientation for the latch with respect to the sleeve and the inner arm. The sleeve, latch and inner arm have reference marks used to determine the optimal orientation for the latch.Type: ApplicationFiled: March 18, 2011Publication date: September 22, 2011Applicant: Eaton CorporationInventors: Austin Zurface, Andrei Dan Radulescu, Majo Cecur, Philip M. Kline, Tony Gordon, James R. Sheren
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Publication number: 20100095918Abstract: A lift-control device for a poppet valve of an internal-combustion engine including a first valve-lift means, a second valve-lift means, and a means for selective de-activation of the second valve-lift means. In an embodiment, the first valve-lift means is configured to define a first valve-lift law and is operatively connected with a rocker that acts on a stem of said valve to move said stem according to the first valve-lift law; and the second valve-lift means is configured to define a second valve-lift law and is operatively connected with the rocker. In an embodiment, the first valve-lift means comprises a profile of a cam or eccentric acting on the rocker to cause it to oscillate about a first axis so as to move the valve stem according to the first valve-lift law; and the second valve-lift means comprises an auxiliary rocker that co-operates in contact with the first valve-lift means.Type: ApplicationFiled: July 27, 2007Publication date: April 22, 2010Applicant: EATON S.R.L. CON UNICO SOCIOInventor: Majo Cecur
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Patent number: 7644693Abstract: A hydraulic lash adjuster (17;61;81) in which the body (19) defines a body bore (39) extending over substantially the entire axial length of the body, thus making it possible to finish the bore (39) by a more accurate process, such as honing. In the FIG. 2 embodiment, there is a cylindrical member (71) disposed in the lower portion of the body bore (39) cooperating to define a leakdown clearance (39,71 S), to isolate side load on the plunger (25) the leakdown. In the FIG. 3 embodiment, there is both the leakdown clearance (23S,39) between the body bore and the plunger (23) and the leakdown clearance (39,71 S) between the body bore and the cylindrical member (71), the leakdown flow rate of FIG. 3 being variable if the body and the cylindrical member (71) comprise dissimilar metals, having different coefficients of thermal expansion.Type: GrantFiled: June 24, 2005Date of Patent: January 12, 2010Assignee: Eaton CorporationInventor: Majo Cecur
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Patent number: 7484488Abstract: A tappet assembly includes a first follower engaging a cam lobe profile, and a second follower engaging an engine poppet valve. A latch member is operable to fix the first follower in an extended position, to provide a high lift condition. The first and second followers define first and second stop surfaces, respectively, such that when the latch member is retracted, the lift portion engages the first follower and moves it toward the poppet valve until the stop surfaces engage, and thereafter, further downward movement of the first follower moves the second follower to provide a low lift. One benefit of this feature is to prevent accumulation of unburned fuel in a port fuel injection type of gasoline engine.Type: GrantFiled: November 22, 2006Date of Patent: February 3, 2009Assignee: Eaton CorporationInventors: Majo Cecur, Kynan L. Church
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Publication number: 20080066704Abstract: A hydraulic lash adjuster (17;61;81) in which the body (19) defines a body bore (39) extending over substantially the entire axial length of the body, thus making it possible to finish the bore (39) by a more accurate process, such as honing. In the FIG. 2 embodiment, there is a cylindrical member (71) disposed in the lower portion of the body bore (39) cooperating to define a leakdown clearance (39,71 S), to isolate side load on the plunger (25) the leakdown. In the FIG. 3 embodiment, there is both the leakdown clearance (23S,39) between the body bore and the plunger (23) and the leakdown clearance (39,71 S) between the body bore and the cylindrical member (71), the leakdown flow rate of FIG. 3 being variable if the body and the cylindrical member (71) comprise dissimilar metals, having different coefficients of thermal expansion.Type: ApplicationFiled: June 24, 2005Publication date: March 20, 2008Inventor: Majo Cecur
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Publication number: 20070151534Abstract: A tappet assembly includes a first follower engaging a cam lobe profile, and a second follower engaging an engine poppet valve. A latch member is operable to fix the first follower in an extended position, to provide a high lift condition. The first and second followers define first and second stop surfaces, respectively, such that when the latch member is retracted, the lift portion engages the first follower and moves it toward the poppet valve until the stop surfaces engage, and thereafter, further downward movement of the first follower moves the second follower to provide a low lift. One benefit of this feature is to prevent accumulation of unburned fuel in a port fuel injection type of gasoline engine.Type: ApplicationFiled: November 22, 2006Publication date: July 5, 2007Inventors: Majo Cecur, Kynan Church
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Patent number: 7159551Abstract: A deactivating valve control system for an internal combustion engine and, for each deactivating intake poppet valve (19D), there is provided a deactivating lash compensation device (37). Each of the devices (37) includes a latch member (83) biased toward an unlatched condition (FIG. 3) by a spring member 69, including a vertically-extending spring portion (73). In one embodiment (FIG. 1), the deactivation system includes an actuation rod (49) which is rotated to overcome the biasing force of the spring members (69) and move the latch members (83) into latching engagement (FIG. 5). In another embodiment (FIG. 7), an actuation wire (105) is reciprocated linearly to pivot a lever member (99) associated with each deactivating device (37), again to overcome the spring (69) and move the latch member (83) into latching engagement.Type: GrantFiled: October 15, 2004Date of Patent: January 9, 2007Assignee: Eaton CorporationInventors: Majo Cecur, Fabiano Contarin
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Patent number: 7089900Abstract: A hydraulic lash adjuster (11) for an internal combustion engine, and an improved method of assembly of such a lash adjuster. The lash adjuster (11) is of the type having a body (13), a plunger (15), and a check valve assembly (17). In accordance with one aspect of the invention, the check valve assembly comprises a cartridge (17A;17B) comprising a member (27;41) separate from the plunger (15) and defining a valve seat (27S;41S). The check valve cartridge is capable of being assembled and tested for compliance with a predetermined relationship of flow versus pressure differential, prior to assembly into the plunger (15). In accordance with the improved method of assembly, a plurality of different bodies (13A;13B) and plungers (15A;15B;15C;15D) is provided, as well as a plurality of different, interchangeable check valve cartridges (17A;17B), and the assembly operator selects a body, a plunger, and a cartridge to provide an assembled lash adjuster having the predetermined, desired operating parameters.Type: GrantFiled: June 3, 2005Date of Patent: August 15, 2006Assignee: Eaton CorporationInventors: Jose F. Masello, Majo Cecur
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Publication number: 20050224030Abstract: A hydraulic lash adjuster (11) for an internal combustion engine, and an improved method of assembly of such a lash adjuster. The lash adjuster (11) is of the type having a body (13), a plunger (15), and a check valve assembly (17). In accordance with one aspect of the invention, the check valve assembly comprises a cartridge (17A;17B) comprising a member (27;41) separate from the plunger (15) and defining a valve seat (27S;41S). The check valve cartridge is capable of being assembled and tested for compliance with a predetermined relationship of flow versus pressure differential, prior to assembly into the plunger (15). In accordance with the improved method of assembly, a plurality of different bodies (13A;13B) and plungers (15A;15B;15C;15D) is provided, as well as a plurality of different, interchangeable check valve cartridges (17A;17B), and the assembly operator selects a body, a plunger, and a cartridge to provide an assembled lash adjuster having the predetermined, desired operating parameters.Type: ApplicationFiled: June 3, 2005Publication date: October 13, 2005Inventors: Jose Masello, Majo Cecur
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Patent number: 6941915Abstract: A hydraulic lash adjuster (11) for an internal combustion engine, and an improved method of assembly of such a lash adjuster. The lash adjuster (11) is of the type having a body (13), a plunger (15), and a check valve assembly (17). In accordance with one aspect of the invention, the check valve assembly comprises a cartridge (17A;17B) comprising a member (27;41) separate from the plunger (15) and defining a valve seat (27S;41S). The check valve cartridge is capable of being assembled and tested for compliance with a predetermined relationship of flow versus pressure differential, prior to assembly into the plunger (15). In accordance with the improved method of assembly, a plurality of different bodies (13A;13B) and plungers (15A;15B;15C;15D) is provided, as well as a plurality of different, interchangeable check valve cartridges (17A;17B), and the assembly operator selects a body, a plunger, and a cartridge to provide an assembled lash adjuster having the predetermined, desired operating parameters.Type: GrantFiled: February 26, 2004Date of Patent: September 13, 2005Assignee: Eaton CorporationInventors: Jose F. Masello, Majo Cecur
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Publication number: 20050188938Abstract: A hydraulic lash adjuster (11) for an internal combustion engine, and an improved method of assembly of such a lash adjuster. The lash adjuster (11) is of the type having a body (13), a plunger (15), and a check valve assembly (17). In accordance with one aspect of the invention, the check valve assembly comprises a cartridge (17A;17B) comprising a member (27;41) separate from the plunger (15) and defining a valve seat (27S;41S). The check valve cartridge is capable of being assembled and tested for compliance with a predetermined relationship of flow versus pressure differential, prior to assembly into the plunger (15). In accordance with the improved method of assembly, a plurality of different bodies (13A;13B) and plungers (15A;15B;15C;15D) is provided, as well as a plurality of different, interchangeable check valve cartridges (17A;17B), and the assembly operator selects a body, a plunger, and a cartridge to provide an assembled lash adjuster having the predetermined, desired operating parameters.Type: ApplicationFiled: February 26, 2004Publication date: September 1, 2005Applicant: EATON CORPORATIONInventors: Jose Masello, Majo Cecur
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Patent number: 6912984Abstract: A composite lightweight engine poppet valve (10, 110, 210) that has a valve head portion (12, 112, 212) and at least a portion of the stem portion (14, 114, 214) made from a titanium intermetallic material attached by way of a solid state attachment to a nickel base alloy transition piece (16, 116, 216) that is heat treated for high creep resistance. The tip portion (18, 118, 218) made from conventional material is first attached to one end of the transition piece. The transition piece (16, 116,216) is cut to a desired length and then attached preferably by friction welding to the titanium intermetallic stem portion (14, 114, 214) at a preselected distance (d1, d2, or d3). The tip portion (18, 118, 218) made from conventional material is then attached to the other end of the transition piece. In another embodiment, a second hollow stem portion (215) is attached to the transition piece (216) and the tip portion (218) is then attached thereto.Type: GrantFiled: March 28, 2003Date of Patent: July 5, 2005Assignee: Eaton CorporationInventors: Sundaram L. Narasimhan, Sinharoy Shubhayu, Michael L. Killian, Majo Cecur, Jose F. Masello, Timothy L. Sheren
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Patent number: 6889644Abstract: A rocker arm assembly (55) for a valve control system in an internal combustion engine including a cylinder head (11), and a poppet valve (15). The valve control system comprises an HLA (41) having a ball plunger portion (39). The assembly (55) comprises a rocker arm (57) including axially spaced apart side walls (59,61) and a portion (63) for engagement with the ball plunger (39). The rocker arm assembly (55) further comprises a cam follower (29) disposed about a mounting shaft (31) extending into shaft openings (65) defined by the side walls (59,61), and a pin member (67) defining a valve pad for engagement with a stem tip portion (17), the pin member extending into pin openings (71) defined by the side walls. The assembly (55) includes a clip member (75) including spaced apart clip side walls (77,79) disposed on the outside of the side walls of the rocker arm (57). A connection portion (81) interconnects the clip side walls to restrain axial movement of the mounting shaft (31) and of the pin member (67).Type: GrantFiled: July 2, 2004Date of Patent: May 10, 2005Assignee: Eaton CorporationInventors: Sergio Ferracin, Majo Cecur