Linear valve actuator system and method for controlling valve operation
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F01L-009/04
F16K-031/06
F02D-041/14
H01F-007/18
F02D-041/00
출원번호
US-0963764
(2013-08-09)
등록번호
US-9109714
(2015-08-18)
발명자
/ 주소
Hutchins, Richard H.
Edmonds, Michael E.
출원인 / 주소
SentiMetal Journey LLC
대리인 / 주소
Skaar Ulbrich Macari, PA
인용정보
피인용 횟수 :
0인용 특허 :
19
초록▼
The system, according to one embodiment of the present invention, comprises a stationary coil linear motor to drive a valve with a stem comprising a ferromagnetic property. The linear motor moves the valve in response to control governed by an electronic valve control computer. The valve is movable
The system, according to one embodiment of the present invention, comprises a stationary coil linear motor to drive a valve with a stem comprising a ferromagnetic property. The linear motor moves the valve in response to control governed by an electronic valve control computer. The valve is movable between a closed position at a selectable rate of both acceleration and speed for a selectable distance (“lift”) to a second selectable open position, including all position variations between the fully open and fully closed states. Valve position, velocity and acceleration can be varied both during a valve stroke and from one stroke to the next, as controlled by the logic programmed on a non-transitive memory of the electronic valve control computer.
대표청구항▼
1. A linear actuated electromagnetic valve assembly, comprising: a housing including a travel aperture defined along a longitudinal axis within the housing, including; a valve member including a stem and a distal head portion, at least the stem including a ferromagnetic material;a stationary coil in
1. A linear actuated electromagnetic valve assembly, comprising: a housing including a travel aperture defined along a longitudinal axis within the housing, including; a valve member including a stem and a distal head portion, at least the stem including a ferromagnetic material;a stationary coil including a plurality of wire windings surrounding at least a portion of the stem of the valve member and forming an air gap between the windings and the stem of the valve;a power source input in operative communication with the stationary coil such that selectively applying current to the stationary coil correspondingly actuates and causes the valve stem to linearly traverse along the travel aperture of the housing in both a proximal and distal direction; andan electronic valve control computer coupled to the power source, the control computer including non-transitive memory, wherein a software program is stored in the memory, the software program including code configured to vary a position, a velocity and an acceleration value for the valve member independently from the crankshaft rotational speed during a valve stroke by controlling the power source to selectively energize the stationary coil. 2. The assembly of claim 1, further including at least one bearing adapted to prevent the stem from oscillating during traversal within the travel aperture. 3. The assembly of claim 1, further including a valve guide. 4. The assembly of claim 1, wherein the housing is provided in a head portion of an internal combustion engine. 5. The assembly of claim 4, wherein the distal head portion is adapted to selectively seal with the head portion. 6. The assembly of claim 1, wherein the stem of the valve member is generally hollow. 7. The assembly of claim 1, wherein the stem of the valve member is generally solid. 8. The assembly of claim 1, wherein the electronic valve control computer can apply a selective voltage polarity to dampen a valve closing operation and a valve opening operation. 9. A linear valve actuator system, comprising: a housing including a travel aperture defined along a longitudinal axis within the housing, including; a valve member including a stem and a distal head portion, at least the stem including a ferromagnetic material;a stationary coil including a plurality of wire windings surrounding at least a portion of the stem of the valve member;at least one valve position sensor; andan electronic valve control system in operative communication with the stationary coil, and the at least one valve position sensor, to selectively apply current to the stationary coil to correspondingly actuate and cause the valve stem to linearly traverse along the travel aperture of the housing, the electronic valve control system including a processor and a memory, the memory storing data from a plurality of sensors and software code for governing the operation of the electronic valve control system, the software code including logic for commanding the valve to open by applying a first polarity to the stationary coil to accelerate the valve member with a first acceleration rate and applying a second polarity, that is the opposite of the first polarity, to the stationary coil to decelerate the valve member until it reaches a predetermined open position. 10. The system of claim 9, further including at least one bearing adapted to prevent the stem from oscillating during traversal within the travel aperture. 11. The system of claim 9, wherein the housing is provided in a cylinder head portion of an internal combustion engine. 12. The system of claim 9, wherein the software code includes logic for commanding the valve member to close by applying the second polarity to the stationary coil to accelerate the valve member with a second acceleration rate, applying the first polarity to the stationary coil to decelerate the valve member until it reaches a predetermined staging position adjacent the valve seat, and applying the second polarity to the stationary coil to soft seat the valve member and hold it in a closed position. 13. A linear valve actuator system, comprising: a housing including a travel aperture defined along a longitudinal axis within the housing, including; a valve member including a stem and a distal head portion, at least the stem including a ferromagnetic material;a stationary coil including a plurality of wire windings;at least one valve position sensor; andan electronic valve control system in operative communication with the stationary coil, and the at least one valve position sensor, to selectively apply current to the stationary coil to correspondingly actuate and cause the valve stem to linearly traverse along the travel aperture of the housing, the electronic valve control system including a processor and a memory, the memory storing data from a plurality of sensors and software code for governing the operation of the electronic valve control system, the software code including logic to: apply a first voltage at a first polarity to the stationary coil to accelerate the valve member in an opening direction at a first opening acceleration rate;apply a second voltage having the opposite polarity to the first voltage to the stationary coil to decelerate the valve member until it reaches a predetermined open position;hold the valve at the predetermined open position;apply a third voltage at a polarity opposite the first polarity to the stationary coil to accelerate the valve member in a closing direction with a first closing acceleration rate; andapply a fourth voltage having the opposite polarity of the third voltage polarity to the stationary coil to decelerate the valve member until it reaches a predetermined closing position adjacent a valve seat. 14. The system of claim 13, wherein the software code further includes logic to apply a fifth voltage at a polarity opposite the first polarity to soft seat the valve member and hold it in a closed position. 15. The system of claim 13, wherein the software code further includes logic to read a valve timing sequence data from a memory module, and initiate application of the first and the third voltages based upon the valve timing sequence data. 16. The system of claim 13, wherein the software code further includes logic to write data from a plurality of sensors to the memory. 17. The system of claim 13, wherein the software code further includes logic to update a firing sequence data in the memory. 18. The system of claim 13, wherein the software code further includes logic to calculate a valve velocity value and a valve acceleration value, and then use the valve velocity value and the valve acceleration value to time the application of the second voltage and the fourth voltage. 19. The system of claim 13, wherein the wire windings surround at least a portion of the stem of the valve member.
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이 특허에 인용된 특허 (19)
Lundqvist, Ulf; Eriksson, Johan; Linderyd, Johan, Apparatus for controlling at least one engine valve in a combustion engine.
Yoshitada Katayama JP; Youzou Majima JP; Takayuki Shibata JP; Keizo Takeuchi JP; Toshiaki Terada JP; Shinya Sugiura JP; Hakaru Sasaki JP; Tsutomu Inui JP, Composite magnetic member, process for producing the member and electromagnetic valve using the member.
Borean, Fabio; Puccio, Mitzi, Internal-combustion engine with an electronically controlled hydraulic system for actuation of the valves and means for compensating changes in the operating conditions of the hydraulic.
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