Abstract: A vacuum generation system and method utilizes a dual-action piston-cylinder vacuum generation system to evacuate a vacuum storage. Saturated steam of higher than ambient pressure is inserted into a condensation cylinder with two chambers separated by a movable piston. Steam moves the piston to fill one chamber while expel gaseous content and condensate out of the other chamber. Steam is then condensed to a rough vacuum (RV) state by cooling. By repeated operations of inserting and condensing steam in each chamber alternatively, a sustained vacuum generation is achieved. A multi-level vacuum storage is also disclosed with a high vacuum (HV) storage placed inside a rough vacuum (RV) storage to reduce leakage as well as mechanical stresses. The vacuum generation system and method is extended for creating a prime mover or actuator to drive vacuum pumps maximizing thermal energy usage for increased vacuuming capacity.
Type:
Grant
Filed:
March 17, 2020
Date of Patent:
January 18, 2022
Assignee:
New Jersey Institute of Technology
Inventors:
Chao Zhu, Zhiming Ji, Mengchu Zhou, Joseph Glaz, Bo Zhang
Abstract: The vitamin dispensing machine is constructed of a canister that is divided into a plurality of individual sections. The canister is transparent and divided into individual sections configured to store a plurality of a certain vitamin or pill-shaped object. The canister includes a snap on lid that has a plurality of snap on caps, which correspond to each of the individual sections in order to refill the respective individual section with the certain vitamin. The canister also includes a plurality of dispense knobs that are able to pull outwardly in order to enable a single vitamin to be dispensed along with other selected sections via a wheel.
Abstract: A pump-ejector compression unit is furnished with a receiver, and a mixing chamber of a liquid-gas ejector and a separator are located inside the receiver. An outlet of the mixing chamber is connected to the separator, the receiver is partly filled with a motive liquid, the liquid outlet of the receiver is connected to the suction side of a pump and the gas outlet of the receiver is connected to a consumer of a compressed gas. There is another embodiment of the compression unit, wherein the mixing chamber outlet is connected to a chamber for conversion of a gas-liquid flow. The introduced pump-ejector compression unit has an increased efficiency factor.