-
31.发明申请公开(公告)号：US20180273193A1
公开(公告)日：2018-09-27
申请号：US15469026
申请日：2017-03-24
Applicant: Raytheon Company
Inventor： Matt H. Summers , Frederick B. Koehler , James K. Villarreal , Mark T. Langhenry
CPC classification number: B64D27/023 , B64C2201/046 , B64C2201/167 , B64D31/02 , B64G1/403 , B64G1/404 , C06B33/06 , C06D5/06 , F02K9/08 , F02K9/94 , F02K9/95 , F02K9/97 , F05D2220/80 , F05D2240/35
Abstract: Electrically operated propellant thrust assist supplements an airplane's takeoff, landing or inflight maneuvers. Unlike conventional SRM propellants, the burn rate of the electrically operated propellant can be varied via an electrical input and even extinguished by interrupting the electrical to control a secondary thrust profile (e.g., amplitude, transition rates) to fulfill the needs of a given takeoff, inflight or landing maneuver and provide a smooth transition in and out of the maneuver. Multiple pairs of fixed thrusters (opposite sides of the fuselage), a single pair of gimbaled thrusters or a hybrid of fixed and gimbaled thrusters may be configured to provide all such maneuvers. Flight control inputs are passed back and forth through an interface to enable the thrust assist.
-
公开(公告)号：US20180058377A1
公开(公告)日：2018-03-01
申请号：US15247194
申请日：2016-08-25
Applicant: Raytheon Company
Inventor： James K. Villarreal , Thomas W. Villarreal , Frederick B. Koehler , Mark T. Langhenry , Matt H. Summers
Abstract: An actuator produces a displacement that maintains positive contact between an electrically operated propellant and a pair of electrodes to ignite and sustain combustion of an ignition surface. The electrodes are suitably configured such that current lines between the electrodes follow equipotential surfaces through the propellant. The displacement drives a contour of the ignition surface to substantially match an equipotential surface corresponding to a maximum and uniform current density J at a minimum gap between the electrodes to ignite and combust the entire ignition surface. The flat, angled or curved contact areas of the electrodes are suitably symmetric about a plane.
-
公开(公告)号：US20160305754A1
公开(公告)日：2016-10-20
申请号：US14687693
申请日：2015-04-15
Applicant: Raytheon Company
Inventor： Ward D. Lyman , Frederick B. Koehler
IPC: F42B39/14
Abstract: A release mechanism includes a frame with an interior. The release mechanism also includes a prestrained element coupled to the interior of the frame. The prestrained element creates a seal with the frame. The prestrained element is notched in one or more regions. The prestrained element is configured to fracture when heated to a predetermined temperature allowing the interior to open. The fracture is based on the notched regions of the prestrained element such that separation initiates within the notched regions. The remaining regions of the prestrained element unfractured. The shape memory alloy element can include one or more of a nickel-titanium alloy, a titanium-nickel alloy, a copper-zinc-aluminum alloy, a copper aluminum nickel alloy, and a nickel titanium hafnium alloy. Heating of the shape memory alloy element causes a stress in the shape memory alloy that causes fracturing of the prestrained alloy when sufficient heating has been achieved.
Abstract translation: 释放机构包括具有内部的框架。 释放机构还包括耦合到框架内部的预应力元件。 预制元件与框架形成密封。 预制元素在一个或多个区域中被切口。 预应力元件被配置为当加热到允许内部打开的预定温度时断裂。 断裂基于预应力元件的缺口区域，使得在缺口区域内开始分离。 预应力元素的剩余区域不合格。 形状记忆合金元素可以包括镍 - 钛合金，钛 - 镍合金，铜 - 锌 - 铝合金，铜铝镍合金和镍铪合金中的一种或多种。 形状记忆合金元件的加热导致形状记忆合金中的应力，当达到足够的加热时，会导致预应变合金的断裂。
-
公开(公告)号：US09145702B2
公开(公告)日：2015-09-29
申请号：US13760665
申请日：2013-02-06
Applicant: Raytheon Company
Inventor： Terry M. Sanderson , Frederick B. Koehler , Thomas P. McCreery
CPC classification number: E04H9/023 , E01D19/00 , E01D19/043 , E04B1/985 , E04H9/027 , F16F7/00 , F16F7/082 , F16F7/1022
Abstract: A system includes a structure configured to undergo oscillatory movement. The system also includes a friction damping clamp coupled to the structure. The friction damping clamp includes a housing having a groove. The friction damping clamp also includes a roller positioned at least partially within the groove, where the groove has first and second ramps. The roller is configured to move up each ramp of the groove so that more compression is applied on the structure and to move down each ramp of the groove so that less compression is applied on the structure. The roller may be configured to apply more compression on the structure to increase friction between portions of the structure, to apply less compression on the structure to decrease friction between the portions of the structure, and to apply substantially no compression on the structure when the roller is located at a center of the groove.
Abstract translation: 系统包括被配置为进行振荡运动的结构。 该系统还包括耦合到结构的摩擦阻尼夹具。 摩擦阻尼夹具包括具有凹槽的壳体。 摩擦阻尼夹具还包括至少部分地位于槽内的辊，其中槽具有第一和第二斜面。 辊被配置为向上移动槽的每个斜面，使得更多的压缩被施加在结构上并且向下移动槽的每个斜面，使得较少的压缩施加在结构上。 辊可以被配置为对结构施加更多的压缩以增加结构的部分之间的摩擦力，以减少结构上的压缩以减小结构部分之间的摩擦，并且当辊子基本上不施加压缩在结构上 位于凹槽的中心。
-
公开(公告)号：US11512668B2
公开(公告)日：2022-11-29
申请号：US17106089
申请日：2020-11-28
Applicant: Raytheon Company
Inventor： Frederick B. Koehler , Jacob A. Pinello-Benavides , Curtis S. Copeland , Isaiah M. McNeil , Paul Kadlec , Lauren E. Brunacini , Mark T. Langhenry
Abstract: A rocket motor has an electrically operated propellant initiator for a propellant grain that includes an electrode arrangement configured to concentrate an electric field at an ignition electrode for igniting an electrically operated propellant. The rocket motor includes a combustion chamber containing at least one propellant grain and an electrically operated propellant initiator operatively coupled to the propellant grain to initiate combustion of the propellant grain. The electrically operated propellant initiator includes the electrically operated propellant and at least one pair of electrodes configured to ignite the electrically operated propellant. The pair of electrodes includes a ground plane electrode and an ignition electrode. When an electrical input is applied to the electrically operated propellant initiator, the electric field is concentrated at the ignition electrode to ignite the electrically operated propellant at the location where the ignition electrode is arranged.
-
Patent Agency Ranking
公开(公告)号：US11022414B2
公开(公告)日：2021-06-01
申请号：US16585922
申请日：2019-09-27
Applicant: Raytheon Company
Inventor： Frederick B. Koehler , Paul A. Merems
Abstract: A heat-activated triggering device, such as for a missile or munition, includes a firing pin that is driven into a primer, to initiate a detonation and/or combustion reaction. The firing pin may be mechanically coupled to a linkage that prevents egress of output from the primer if the firing pin has not been moved. The linkage may include, for example, a cylindrical valve element with a through hole, the through hole being alignable with an output channel from the primer when the firing pin has been moved sufficiently. The movement of the firing pin slides a dowel pin that is attached to the firing pin. This in turn translates a cam element that turns the cylindrical element. Partial movement of the firing pin still may leave the valve closed. Preventing the primer from prematurely operating to trigger explosion, for example preventing full operation due to a primer being heated.
-
公开(公告)号：US20210095944A1
公开(公告)日：2021-04-01
申请号：US16585931
申请日：2019-09-27
Applicant: Raytheon Company
Inventor： Frederick B. Koehler , Ward D. Lyman , Anthony O. Lee
Abstract: A heat-activated triggering device, such as for a missile or munition, includes a bi-metal trigger element, with a breakable pin of a first metal surrounded by a sleeve made of a second metal that is different than the first metal. The sleeve may be made of a shape memory alloy, such as a single-crystal shape memory alloy, that is pre-compresses around part of the pin. The sleeve may be configured to put a tension force on the pin as the sleeve passes a predetermined temperature, for instance a temperature at which the shape memory feature of the sleeve is activated. The pin may have a weakened portion, such as a notched portion, at which the pin breaks. The breaking of the pin may be used to drive a firing pin into a primer, to initiate a detonation and/or combustion reaction.
-
公开(公告)号：US20170284339A1
公开(公告)日：2017-10-05
申请号：US15091245
申请日：2016-04-05
Applicant: Raytheon Company
Inventor： Frederick B. Koehler , Jeremy C. Danforth , Ward D. Lyman , Mark T. Langhenry , Matt H. Summers , Paul E. Pontius , Brian M. Pape , Jared D. Stallings , James K. Villarreal , Thomas Villarreal
IPC: F02K9/28
Abstract: A thruster includes multiple segments of electrically-operated propellant, electrodes for igniting one or a few of the electrically-operated propellant segments at a time, and a propellant feeder for moving further propellant segments into engagement with the electrodes. The segments may be configured to provide equal increments of thrust, or different amounts of thrust. The segments may each include an electrically-operated propellant material surrounded by a sealing material, so as to keep the propellant material away from moisture and other contaminants (and/or the vacuum of space) before each individual segment is to be used. The thruster may be included in any of a variety of flight vehicles, for example in a small satellite such as a CubeSat satellite, for instance having a volume of about 1 liter, and a mass of no more than about 1.33 kg.
-
公开(公告)号：US09611838B2
公开(公告)日：2017-04-04
申请号：US14248146
申请日：2014-04-08
Applicant: Raytheon Company
Inventor： Frederick B. Koehler , Ward D. Lyman , Michael J. Birch
Abstract: A mechanical actuator is disclosed. The mechanical actuator can comprise an interface portion configured to interface with an object, a spring configured to exert a force on the interface portion, and a shape memory member coupled to the interface portion. The shape memory member can be configured to fracture at a predetermined temperature range. Upon fracture of the shape memory member, the force of the spring can cause the interface portion to act on the object.
-
公开(公告)号：US20150285228A1
公开(公告)日：2015-10-08
申请号：US14248146
申请日：2014-04-08
Applicant: Raytheon Company
Inventor： Frederick B. Koehler , Ward D. Lyman , Michael J. Birch
Abstract: A mechanical actuator is disclosed. The mechanical actuator can comprise an interface portion configured to interface with an object, a spring configured to exert a force on the interface portion, and a shape memory member coupled to the interface portion. The shape memory member can be configured to fracture at a predetermined temperature range. Upon fracture of the shape memory member, the force of the spring can cause the interface portion to act on the object.
Abstract translation: 公开了一种机械致动器。 机械致动器可以包括配置成与物体接合的接口部分，被配置为在接口部分上施加力的弹簧以及耦合到接口部分的形状记忆部件。 形状记忆部件可以构造成在预定温度范围内断裂。 在形状记忆构件断裂时，弹簧的力可导致界面部分作用在物体上。
-
-
-
-
-
-
-
-
-
Search Results
41
records
(took 0.016 seconds)
