公开(公告)号：US3779672A

公开(公告)日：1973-12-18

申请号：US3779672D

申请日：1971-03-01

Applicant: SCHROEDER W

Inventor： SCHROEDER W

IPC: F04B27/02 ,  F04B39/00 ,  F04B39/04 ,  F04B7/04

CPC classification number: F04B27/02 ,  F04B39/0005 ,  F04B39/04 ,  F05C2201/906

Abstract: A compressor which is adapted to operate in a dry condition without any lubricant. The compressor has a cylinder which defines a compression chamber in its interior and which is provided with a gas intake and a gas outlet. A piston which is made substantially entirely of plastic reciprocates in the cylinder and defines a gap with the inner surface thereof, the gas inlet being in the form of nozzle-shaped openings extending through the cylinder wall and inclined with respect to the cylinder axis. In addition to the latter openings there are balancing bores which extend through the cylinder wall to provide a stable reciprocation of the piston, and the axes of these bores not only are inclined with respect to the cylinder axis but they are also inclined with respect to the axes of the inlet openings in a manner according to which air entering through the latter will retard any tendency of air or other gas to leak out through the balancing bores. Preferably there are a pair of pistons which are directly opposed to each other so that one reciprocates along its suction stroke while the other reciprocates along its compression stroke. According to the method the pistons are reciprocated at a speed of at least 1500 strokes per minute, so that in this way compressed air or other gas can be supplied to chemical, food, or other industries in large quantities for such purposes as the pneumatic operation of bulk material conveyors and the like.

Abstract translation: 一种适于在没有任何润滑剂的情况下在干燥状态下操作的压缩机。 压缩机具有在其内部限定压缩室并且设置有气体入口和气体出口的气缸。 基本上完全由塑料制成的活塞在气缸中往复运动并且与其内表面形成间隙，气体入口呈喷嘴状开口的形式延伸穿过气缸壁并相对于气缸轴线倾斜。 除了后者的开口之外，还有平衡孔，其延伸穿过气缸壁以提供活塞的稳定的往复运动，并且这些孔的轴线不仅相对于气缸轴线倾斜，而且它们也相对于气缸壁倾斜 入口开口的轴线以根据该方式输入的空气将阻止空气或其它气体通过平衡孔泄漏出来的任何倾向。 优选地，存在一对彼此直接相对的活塞，使得一个活塞沿其吸入冲程往复运动，而另一个活塞在其压缩冲程中往复运动。 根据该方法，活塞以每分钟至少1500冲程的速度往复运动，从而以这种方式，压缩空气或其它气体可以大量供应给化学，食品或其他工业，用于气动操作 的散料输送机等。

公开(公告)号：US3762773A

公开(公告)日：1973-10-02

申请号：US3762773D

申请日：1972-06-30

Applicant: SCHROEDER W

Inventor： SCHROEDER W

IPC: B65G53/12 ,  B65G53/16 ,  B65G53/40

CPC classification number: B65G53/12

Abstract: Finely divided solids are fed into a gas pressurized system from a gas pressurized hopper, the gas remaining in the hopper after the solids are exhausted is forced into the pressurized system by pumping liquid into the hopper to displace the gas, the liquid is withdrawn, the hopper is replenished with finely divided solids and repressurized by gas from the pressurized system. Means are provided for accomplishing these steps. There is no loss of pressurizing gas and no energy loss due to expansion and repressurizing of gas for the feed hopper.

公开(公告)号：US3823084A

公开(公告)日：1974-07-09

申请号：US26820172

申请日：1972-06-30

Applicant: SCHROEDER W

Inventor： SCHROEDER W

IPC: C10G1/08 ,  C10G1/06

CPC classification number: C10G1/08

Abstract: PULVERIZED COAL, IN THE SUBSTANTIAL ABSENCE OF PASTING OR SLURRYING MEDIU, IS DISPERSED INTO A RECYCLE STREAM OF PREHEATED, HIGH-PRESSURE HYDROGEN AND THE RESULTANT REACTION STREAM IS PRESSED THROUGH A HYDROGENATION ZONE CONTAINING A BED OF HYDROGENATION CATALYST AT A RATE SUFFICIENT TO SWEEP UNREACTED COAL, COAL ASH AND HYDROCARBON REACTION PRODUCTS FROM THE CATALYST BED. LIQUID AND GASEOUS HYDROCARBON PRODUCTS, AFTER SULFUR REMOVAL, ARE RECOVERED FROM THE PRODUCT STREAM. A HIGH HYDROGEN RECYCLE RATIO THROUGH THE CATALYST BED IS EMPLOYED TO PREVENT CATALYST INACTIVATION BY PRODUCT HYDROCARBONS. A NOVEL METHOD OF FEEDING THE PULVERIZED COAL INTO THE HIGH PRESSURE SYSTEM FROM A HYDROGEN PRESSURIZED HOPPER WITHOUT PERMITTING THE COMPRESSED HYDROGEBN TO EXPAND TO LOWER PRESSURE, THEREBY REDUCING THE ENERGY REQUIREMENTS OF THE SYSTEM, IS DISCLOSED.