Патент USA US2406229код для вставки
Aug. 2o, _1946. l w. H. l LEINWEBER FLUID C’OMI’RES SOR 'Filed Feb. 2, 1945 Vl. ' 2,406,229 Patented Aug. 20, 1946 2,406,229 UNITED STATES PATENT OFFICE ' ‘Y 2,406,229 FLUID _COMPRESSOR l William H. Leinweber, Chicago, Ill. AApplication February 2, 194,5, Serial No. 575,747 1 2 Claims. ' ' My invention relates to improvements in com pressors and more particularly to a hollow piston closed at both ends having inlet outlet ports in (o1. 23o-_172) 2 the chamber 4 by th‘e air or iiuid compressed in the chamber 5 when the piston is in its lower position as shown in Fig. 2. 'I'his forced, com the sides of the piston and a compression cham air or fluid from the chamber 4 will pass ber therein to give greater vaporization of iiuids. 5 pressed out through the upper ports II through th'e up The invention will be best understood by rei’ per ports ‘I into the chamber 3, from whence it erence to the accompanying drawing forming a passes out through the outlet valve 6 under com part of this specification, and in which, pression. When the piston I5 is in its upper Figure 1 shows a longitudinal, central sectional most position, a position adjacent the top wall I2, ` View of a device embodying my invention. the inlet Avalve 8 will communicate with' the Figure 2 shows a similar view of the same illus chamber 5 below the piston I5 and a charge of ` trating the piston in a differentV position and dis air or iiuid will be admitted into the chamber closing the three compression chambers for its from the inlet valve 8. As the piston moves thriple compression. downwardly, this charge of air or fluid from the Referring in detail to the form of my invention 15 chamber 5 will be forced through the ports l and illustrated herewith', I have shown a compressor Il into the chamber 4 of the piston I5, and when l cylinder I4 containing a thriple piston I5 and the piston I5 reaches a point where one of the having a head I provided With a discharge valve lower ports registers with the inlet valve 8, a 6 and an inlet valve 8. of air or fluid will again be admitted to These valves and cylinder construction maybe 20 charge the chamber 4 of the piston. Thus, it will be ap of any number or any type. parent that the air or fluid compressed in cham The bottom cylinder wall I6 has in its center ber 5 being admitted through' the ports 'I and a boss I Il in which piston rod I3 containing two II into the chamber 4, is met with a charge of piston rings 9 at the lower end is ñtted into boss air or fluid through the inlet valve S, and this I0 similar as a piston is fitted into a cylinder 25 compressed air or fluid and the charge of air or and works in the same manner therein, this ar iluid from the inlet valve 8 will then pass through rangement prevents leakage of fluid or the like the ports II and l into the chamber 3 where it from entering into the crank case and thinning will be re-compressed and expelled through the out the cil. outlet valve 6. By this construction, it will be The upper threaded end of the piston rod I3 is apparent that there are three stages of com screwed into boss I2 in the hollow piston I5 this pression in the operation of the piston, the first arrangement gives perfect alignment at all times stage being the compression of the air or fluid a more even stroke of the piston and piston rod in chamber 5 and the expulsion of compressed in boss IU the efficiency is increased considerable air or fluid into chamber 4, where the compressed for longer periods of time without repairs as no ‘ uneven wear to th'ese parts occur at anytime. The hollow piston I5 has inlet and outlet ports II at the sides of the piston which `communicate through cylinder port 1. ' The operation of the compressor described is air or ñuid is bombarded by a charge of air or ñuid through the inlet valve 8. From this cham ber 4, the compressed air or fluid is then admit ted into the chamber 3 Where it reaches the third stage of compression and is expelled through the outlet valve 6. As before stated, the valves 6 and 8 may be of any approved con Viewing the compressor with its parts in the struction, it being the intention that as to the position shown in Fig. 2, in which position the valve 8, air or iiuid is admitted only into the air or iluid from chamber 5 has been expelled into chamber 4 of the piston I5, the piston I5 is 45 chamber 5 and chamber 4 and escape of air or fluid is not permitted therefrom, whereas valve in substantially its lowermost position, with a 6 is constructed to permit escape of air or fluid wall thereof closing the port of the inlet valve 8, from chamber 3 but will not permit admission which inlet valve 8 is of a construction which of air or fluid therein. admits air or iluid into the chamber 4 or 5 under While I have illustrated and described the pre certain conditions to be hereinafterrnoted. As 50 ferred form of construction for carrying my in the piston I 5 moves upwardly, one of the ports of vention into effect, this is capable of variation the lower ports II will register with the inlet and modiñcation without departing from the valve 8 and a Acharge of air or iluid will be admit spirit of the invention. I, therefore do not wish as follows: ed to the chamber 4. As the piston moves up, to be limited to the precise details of construc this charge or air or fluid. will be forced out ci' 55 tion set forth, but desire to avail myself of such 2,406,229 3 4 2. A compressor comprising a body providing variations and modification as come Within the a piston chamber, a piston in said chamber and scope of the appended claims. providing on opposite sides thereof, together with said body, compression chambers, said piston be ‘ Having thus described my invention, what ;I claim as new and desire to protect by Letters ing of Vsubstantially hollow construction, means Patent is: providing communication between the compres a piston chamber, a piston in said chamber and sion chamber on one side of the piston and the interior of said piston, means providing com 1, A compressor comprising a body providing providing on opposite sides thereof, together with‘ said body,r compression chambers, said piston be ing of substantially lio-110W construction, means providing communication between the compres sion chamber on one side of the piston and the vinterior of said piston, means providing com-’ munication between the interior of' said piston Y and the compression chamber on the other side of said piston, and means for charging a, fluid to the interior of 4said piston chamber at a prede termined point in its movement within said cylinder. ' munication between the interior of said piston and the ccmpression chamber> on the other side of said piston', and means for charging a fluid to the interior of said piston chamber at a, prede termined point in its movement within said cyl index, said last-named means including an inlet valve and ports formed-in said piston for com munication with said valve. WILLIAM H. LEINWEBER.