公开(公告)号：US4816736A

公开(公告)日：1989-03-28

申请号：US25217

申请日：1987-03-12

Applicant: Thomas J. Dougherty ,  Richard T. Johnson

Inventor： Thomas J. Dougherty ,  Richard T. Johnson

IPC: H02J7/16 ,  H02J7/14 ,  H02P9/30

CPC classification number: H02J7/1423

Abstract: A 24/12 volt battery power supply for a vehicle includes two 12 volt batteries connected in series, and having first and second 24 volt terminals to the opposite ends of the batteries and a 12 volt terminal to the center common connection of the batteries. The 12 volt loads are divided into equal right and left side vehicle loads and the right side is connected across one battery and the left side is connected across the second battery. A three phase wye-connected alternator has the winding connected to a full wave three phase rectifier, the D.C. output of which is connected to the 24 volt terminals. The center common connection of the winding is connected directly to the 12 volt terminal. The system operates with balanced currents and charges on the two 12 volt batteries so long as the 12 volt loads remain balanced. Control loads are selectively connected to the right and left side loads if a 12 volt load is lost, disconnected or otherwise changes to maintain the balanced system but only if the imbalance due to lost loads is large. In another embodiment, the full wave rectifiers are connected to conduct the opposite half cycles of the alternator output. The controlled rectifiers for each half cycle have the gates connected to a common gate source, and a logic circuit monitors the voltage of each battery and actuates one or the other of the rectifier groups to prevent one battery segment from significantly varying in voltage with respect to the other.

公开(公告)号：US4472172A

公开(公告)日：1984-09-18

申请号：US99833

申请日：1979-12-03

Applicant: Charles Sheer ,  Samuel Korman ,  Thomas J. Dougherty

Inventor： Charles Sheer ,  Samuel Korman ,  Thomas J. Dougherty

IPC: C10J3/46

CPC classification number: C10J3/466 ,  C10J2300/1238

Abstract: A process for the gasification of coal consisting essentially of forming a free-burning arc discharge between at least one anode and a cathode having a conical tip, wherein said arc discharge forms a contraction of the current-carrying area in the transition region in the vicinity of the cathode, forcefully projecting a reactive material consisting of a mixture of pulverized coal and steam parallel to the surface of said conical tip of said cathode and through said contraction of the current-carrying area in the transition region in the vicinity of the cathode, at such a rate that said mixture of pulverized coal and steam is exposed to the free-burning arc for less than 3 milli-seconds, and recovering a solid carbonaceous fume having a surface area equivalent to a particle size in the range of 0.01 to 0.2 microns and a gaseous product comprising of hydrogen, carbon monoxide and carbon dioxide. The carbonaceous fume is highly reactive and in a second steam treatment step is readily converted to gas at a rate of an order of magnitude higher than that for a conventionally devolatilized coal char.

Abstract translation: 一种用于煤气化的方法，其基本上在至少一个阳极和具有锥形尖端的阴极之间形成自由燃烧的电弧放电，其中所述电弧放电在附近的过渡区域中形成通电区域的收缩 的阴极，强制地将由煤粉和蒸汽的混合物组成的反应性材料平行于所述阴极的所述锥形尖端的表面，并且通过阴极附近的过渡区域中的载流区域的收缩， 以使所述粉煤和蒸汽混合物暴露于自由燃弧的时间小于3毫秒，并且回收表面积等于0.01至0.2的粒度的固体碳质烟雾 微粒和包含氢气，一氧化碳和二氧化碳的气体产物。 碳质烟雾是高反应性的，在第二蒸汽处理步骤中容易地以比常规脱挥发煤焦炭高一个数量级的速率转化为气体。