F01L 2009/409
Determination of valve speed
Official title: {Determination of valve speed}
F01L2009/409 (Determination of valve speed) appears on 10 US grants and 6 published applications in this corpus.
Search patents in F01L- Granted patents
- 10
- Published applications
- 6
- Assignees
- 9
- Inventors
- 28
- Latest grant
- 7 Jan 2020
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|---|---|---|
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| 2008 | 0 | 1 |
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| 2010 | 1 | 0 |
| 2011 | 1 | 1 |
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| 2013 | 1 | 0 |
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Recent patents
- Engine electronic valve actuation7 Jan 2020US 10,526,932 B2
- Valve timing control device of internal combustion engine18 Jul 2017US 9,708,941 B2Hitachi Automotive Systems, Ltd.
- Programmable device for compressor valve19 Nov 2013US 8,584,698 B2Southern Gas Association Gas Machinery Research Council
- Device and method for controlling a valve with consumable energy monitoring18 Oct 2011US 8,038,122 B2Valeo Systemes de Controle Moteur
- Position recognition in an electromagnetic actuator without sensors28 Sep 2010US 7,804,674 B2ZF Friedrichshafen AG
- Valve timing control device of internal combustion engine3 Mar 2016US 2016/0061066 A1Hitachi Automotive Systems, Ltd.
- Engine electronic valve actuation25 Oct 2012US 2012/0266832 A1
- Programmable device for compressor valve3 Feb 2011US 2011/0023980 A1Southern Gas Association Gas Machinery Research Council
- Device and method for controlling a valve with consumable energy monitoring3 Sep 2009US 2009/0218531 A1Valeo Systemes de Controle Moteur
- Position Recognition in an Electromagnetic Actuaton Without Sensors14 Aug 2008US 2008/0191826 A1ZF Friedrichshafen AG
Most cited
By later US patents
- Electromagnetic actuator889US 6,366,441 B1Honda Giken Kogyo Kabushiki Kaisha · 2002
- Sensorless method to determine the static armature position in an electronically controlled solenoid device50US 6,476,599 B1Siemens Automotive Corporation · 2002
- Method for driving an electromagnetic actuator for operating a gas change valve14US 6,234,122 B1DaimlerChrysler AG · 2001
- Method for determining the position of an armature7US 6,518,748 B2Siemens Aktiengesellschaft · 2003
- Position recognition in an electromagnetic actuator without sensors7US 7,804,674 B2ZF Friedrichshafen AG · 2010