Patents by Inventor Pekka Hautala
Pekka Hautala 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: 8579253Abstract: A fuel injector valve (1) of a piston engine, which comprises a fuel chamber (3) for the fuel to be injected, a valve needle (9) for guiding the fuel injection from the fuel chamber (3) into the cylinder (4) of the engine, a spring (10) for pressing the valve needle (9) towards the closed position, and a piezoelectric actuator (11) for guiding the valve needle (9). Additionally, the injector valve (1) comprises a drawbar (22), which is loosely coupled to the valve needle (9), a second drawbar (23), which is attached to the piezoelectric actuator (11) and loosely coupled to the drawbar (22), and that the injector valve (1) comprises a second spring (24) fitted in connection with the drawbar (22) for pressing the valve needle (9) towards the closed position and a third spring (25) fitted in connection with the second drawbar (23) for pressing the valve needle (9) towards the closed position.Type: GrantFiled: May 28, 2010Date of Patent: November 12, 2013Assignee: Wartsila Finland OyInventors: Wiliam Brace, Pekka Hautala, Jukka Kiijarvi, Markus Niemi
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Patent number: 8297241Abstract: A hydraulic actuator (1) comprising a body (2), in which a control arm (5) and a lift means (6) provided with a piston surface (22) are arranged, which lift means is arranged to follow the reference movement of the control arm (5), and an inlet port (3) and an outlet port (4) for hydraulic medium. The body (2) encloses a pressure chamber (10) delimited by the piston surface (22) of the lift means (6), and the movement of the control arm (5) provides a flow connection between the inlet port (3) and the pressure chamber (10) in order to move the lift means (6), and the movement of the control arm (5) in the opposite direction provides a flow connection between the pressure chamber (10) and the outlet port (4) in order to move the lift means (6) in the opposite direction.Type: GrantFiled: July 2, 2008Date of Patent: October 30, 2012Assignee: Wärtsilä Finland OyInventors: Juha Alajoki, Pekka Hautala, Jyrki Kajaste, Jukka Kiijärvi, Petri Kuosmanen, Markus Niemi
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Publication number: 20110315908Abstract: A fuel injector valve (1) of a piston engine, which comprises a fuel chamber (3) for the fuel to be injected, a valve needle (9) for guiding the fuel injection from the fuel chamber (3) into the cylinder (4) of the engine, a spring (10) for pressing the valve needle (9) towards the closed position, and a piezoelectric actuator (11) for guiding the valve needle (9). Additionally, the injector valve (1) comprises a drawbar (22), which is loosely coupled to the valve needle (9), a second drawbar (23), which is attached to the piezoelectric actuator (11) and loosely coupled to the drawbar (22), and that the injector valve (1) comprises a second spring (24) fitted in connection with the drawbar (22) for pressing the valve needle (9) towards the closed position and a third spring (25) fitted in connection with the second drawbar (23) for pressing the valve needle (9) towards the closed position.Type: ApplicationFiled: May 28, 2010Publication date: December 29, 2011Applicant: WÄRTSILÄ FINLAND OYInventors: Wiliam Brace, Pekka Hautala, Jukka Kiijarvi, Markus Niemi
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Patent number: 7975673Abstract: A fuel injection arrangement for a piston engine, the arrangement comprising an injector nozzle (1) for injecting fuel into the combustion chamber (6) of the cylinder. A Theological actuator (15) is arranged in connection with the injector nozzle (1), the actuator comprising a space (18) containing Theological fluid and an apparatus (19, 20) by means of which the viscosity of the Theological fluid can be changed for controlling the fuel injection.Type: GrantFiled: November 13, 2007Date of Patent: July 12, 2011Assignee: Wärtsilä Finland OyInventors: Juha Alajoki, Jukka Kiijärvi, Markus Niemi, Jari Kostamo, Jyrki Kajaste, Pekka Hautala
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Publication number: 20100199933Abstract: A hydraulic actuator (1) comprising a body (2), in which a control arm (5) and a lift means (6) provided with a piston surface (22) are arranged, which lift means is arranged to follow the reference movement of the control arm (5), and an inlet port (3) and an outlet port (4) for hydraulic medium. The body (2) encloses a pressure chamber (10) delimited by the piston surface (22) of the lift means (6), and the movement of the control arm (5) provides a flow connection between the inlet port (3) and the pressure chamber (10) in order to move the lift means (6), and the movement of the control arm (5) in the opposite direction provides a flow connection between the pressure chamber (10) and the outlet port (4) in order to move the lift means (6) in the opposite direction.Type: ApplicationFiled: July 2, 2008Publication date: August 12, 2010Applicant: WÄRSILÄ FINLAND OYInventors: Juha Alajoki, Pekka Hautala, Jyrki Kajaste, Jukka Kiijärvi, Petri Kuosmanen, Markus Niemi
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Publication number: 20100050988Abstract: A fuel injection arrangement for a piston engine, the arrangement comprising an injector nozzle (1) for injecting fuel into the combustion chamber (6) of the cylinder A Theological actuator (15) is arranged in connection with the injector nozzle (1), the actuator comprising a space (18) containing Theological fluid and an apparatus (19, 20) by means of which the viscosity of the Theological fluid can be changed for controlling the fuel injection.Type: ApplicationFiled: November 13, 2007Publication date: March 4, 2010Applicant: WÄRTSILÄ FINLAND OYInventors: Juha Alajoki, Jukka Kiijärvi, Markus Niemi, Jari Kostamo, Jyrki Kajaste, Pekka Hautala
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Patent number: 7503600Abstract: The present invention relates to a locking arrangement by means of which two parts can be locked to each other, such as locking a door to its frame construction. The locking arrangement comprises a first locking element fastened to the lock unit, a second locking element fastened to the counter part and an acting element being preferably a part of the lock unit. The first and second locking elements are gripping brackets, forming a hooked grip with each other when the lock unit and the counter part are against each other, when, for example, the door is locked in its opening. The gripping brackets are essentially in the direction of the movement of the door. The task of the acting element is to keep the gripping brackets in an overlapping position when the locking arrangement is locked. The position of the acting can be changed, and the current state of the locking arrangement depends on the position.Type: GrantFiled: September 23, 2004Date of Patent: March 17, 2009Assignee: Abloy OyInventors: Pekka Hautala, Petri Makkonen, Juha Murtola, Mika Helisten, Kimmo Siitari
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Publication number: 20070052251Abstract: The present invention relates to a locking arrangement by means of which two parts can be locked to each other, such as locking a door to its frame construction. The locking arrangement comprises a first locking element fastened to the lock unit, a second locking element fastened to the counter part and an acting element being preferably a part of the lock unit. The first and second locking elements are gripping brackets, forming a hooked grip with each other when the lock unit and the counter part are against each other, when, for example, the door is locked in its opening. The gripping brackets are essentially in the direction of the movement of the door. The task of the acting element is to keep the gripping brackets in an overlapping position when the locking arrangement is locked. The position of the acting can be changed, and the current state of the locking arrangement depends on the position.Type: ApplicationFiled: September 23, 2004Publication date: March 8, 2007Inventors: Pekka Hautala, Petri Makkonen, Juha Murtola, Mika Helisten, Kimmo Siitari