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

IPC: F02K9/26 ,  F02K9/94 ,  F02K9/95

CPC classification number: F02K9/26 ,  F02K9/94 ,  F02K9/95

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：US20180051657A1

公开(公告)日：2018-02-22

申请号：US15240932

申请日：2016-08-18

Applicant: Raytheon Company

Inventor： James K. Villarreal ,  Jeremy C. Danforth ,  Matt H. Summers ,  Daniel K. Johnson ,  Mark T. Langhenry

IPC: F02K9/95 ,  F02K9/08 ,  C06B27/00 ,  C06B29/00

CPC classification number: F02K9/95 ,  C06B23/00 ,  C06B27/00 ,  C06B29/00 ,  C06B45/10 ,  F02K9/08 ,  F02K9/94

Abstract: Microwave energy is used to ignite and control the ignition of electrically operated propellant to produce high-pressure gas. The propellant includes conductive particles that act as a free source of electrons. Incoming microwave energy accumulates electric charge in an attenuation zone, which is discharged in the form of dielectric breakdowns to create local randomly oriented currents. The propellant also includes polar molecules. The polar molecules in the attenuation zone absorb microwave energy causing the molecules to rapidly vibrate thereby increasing the temperature of the propellant. The increase in temperature and the local current densities together establish an ignition condition to ignite and sustain ignition of an ignition surface of the attenuation zone as the zone regresses without igniting the remaining bulk of the propellant.

公开(公告)号：US20150343988A1

公开(公告)日：2015-12-03

申请号：US14289513

申请日：2014-05-28

Applicant: Raytheon Company

Inventor： James K. Villarreal ,  Thomas M. Deppert ,  Mark T. Langhenry ,  Matt H. Summers

IPC: B60R21/264

CPC classification number: B60R21/2644 ,  B60R21/00 ,  C06B33/06 ,  C06C9/00 ,  C06D5/06 ,  F42B3/04 ,  F42B3/128 ,  F42B3/14 ,  F42C19/0823 ,  F42C19/12

Abstract: The rate of combustion of an electrically operated propellant having self-sustaining threshold of at least 1,000 psi is controlled to produce chamber pressures that are sufficient to produce a desired pressure profile in the airbag to accommodate a range of human factors and crash conditions yet never exceeding the self-sustaining threshold. The combustion of the propellant is extinguished to control the total pressure impulse delivered to the airbag. Propellants formed with an ionic perchlorate-based oxidizer have demonstrated thresholds in excess of 1,500 psi and higher.

Abstract translation: 控制具有至少1,000psi的自持阈值的电动推进剂的燃烧速率以产生足以在气囊中产生所需压力分布的腔室压力，以适应一系列人为因素和碰撞条件，但从未超过 自我维持的门槛。 推进剂的燃烧熄灭，以控制输送到气囊的总压力脉冲。 用离子高氯酸盐基氧化剂形成的推进剂已经证实超过1500psi或更高的阈值。