Patent RU-2742324-C1 (RU)
Title: Ejecting distributing and/or dispensing element for distributing and/or dispensing medium, in particular multicomponent mixture of heavy liquids
Inventor: PAVCNIK BOJAN
IPC: B61K3/00
Filed: 2018-06-13
Granted: 2021-02-04
Abstract: FIELD: rail vehicles. 
     SUBSTANCE: group of inventions relates to railway equipment, specifically to a pushing distributing and/or dispenser for medium distribution and/or dispensing, in particular, a multicomponent mixture of heavy liquids, or a plurality of such media, as well as to a method of distributing and/or dispensing a medium, preferably a multicomponent mixture of heavy liquids, or a plurality of such media. Pushing distributing and/or dispensing element for distribution and/or dispensing of the medium, in particular a multicomponent mixture of heavy liquids (CHFC), or multiple such media, comprises flexible insert (3) having a through hole. Said through hole, in fact, defines compression space (4), and also comprises push-out device, preferably pushing pin (1), made with possibility of movement between first position, in which said flexible insert (3) is deformed, as a result of which said compression space (4) has smaller inner volume compared to inner volume of said flexible insert (3) in its undeformed state, and second position, in which said flexible insert (3) is minimally deformed or not deformed, as a result of which said compression space (4) has larger inner volume compared to said flexible insert (3) in its deformed state. Reservoir for medium, preferably a multicomponent mixture of heavy liquids, is preferably located outside of said pushing distributing and/or dispensing element. Compression space (4) is located between said ejecting means, preferably, ejecting pin (1) on one side and an ejecting opening, preferably check valve (5), on the other side. Pumping cycle comprises a suction step for pumping said medium, preferably a multicomponent mixture of heavy liquids, into said compression space (4) and an extraction step for pumping said medium, preferably a multicomponent mixture of heavy liquids, from said compression space (4) to a position in which said medium is desired, preferably a multicomponent mixture of heavy liquids. Said suction stroke is performed by displacing said push-out device, preferably push-out pin (1), from said first position to said second position. At that, said extrusion step is performed by displacing said push-out device, preferably pushing pin 1, from said second position into said first position. At that, flexible insert (3) is located in the housing of said pushing distributing and/or dispensing element in such a way that, in fact, to prevent deformation of external perimeter of said flexible insert (3), and deformation of through hole of said flexible insert (3) during extrusion of said pushing means, preferably pushing pin (1) acting on said flexible insert (3), so that volume of said through hole is reduced and that due to reduction of internal volume a given amount of medium, preferably a multicomponent mixture of heavy liquids, is pushed through said pushing hole, preferably through check valve (5). 
     EFFECT: technical result consists in improvement of reliability of pushing distributing and/or dispensing element due to use of flexible insert. 
     11 cl, 2 dwg