AU2015100462A4 - Design method for cartridge for fluid transfer device - Google Patents

Abstract

Design method for cartridge for fluid transfer device Abstract The invention relates to a design method for the cartridge for the fluid transfer device. The method comprises providing an exterior cylindrical surface freely hermetically rotating in the cartridge; arranging for the tail end of the first passage of the cartridge and the 5 tail end of the second passage to communicate with the manifold chamber, and arranging for the head end of the first passage and the head end of the second passage to radially extend to the exterior surface of the cartridge. Uniformly alternately arranging the first and second passages in a ring array. Based on the simple and reliable 10 principle, the tail ends of the first and second passages of the cartridge are configured to communicate with the manifold chamber so as to achieve that a plurality of receiving chambers share one cartridge, reducing the quantity of components, simplifying the transmission mechanism, increasing the stability and reliability. Fig. 1 Fig 2

Description

Design method for cartridge for fluid transfer device Field of the Invention The invention relates to a deisgn method for the fluid transfer device, especially to a design method for the cartridge for the fluid 5 transfer device. Description of prior art The working prcess of the internal combustion engine is roughly such, the piston moves downward, the mixed combustible gas goes 10 into the cylinder; the piston moves upward to compress combustible gas, the spark plug ignites combustible gas to explode the gas, the exploded gas with high temperature and high pressure drives the piton moving downward, the linear movement of the piston is converted to the rotational movement of the crankshaft by 15 the connecting rod; the crankshaft goes on rotating because of the inertia, the rotational movement of the crankshaft is converted to the linear movement of the piston by the connecting rod, the piston moves upward to push exhaust gas out of the cylinder. In brief, inhale- compression -work- exhaust. 20 So, there is provided a device using reciprocal movement of the piston to transfer fluid. The working process of the device is that, the piston moves upward to creat a negative pressure area in the receiving chamber, fluid is compressed into the receiving chamber 25 through the input passage by the effect of the atmosphere. The downward movement of the piston within the receiving chamber compresses fluid therein out of the receiving chamber through the output passage. 30 A single cycle of motion is separated into an input phase and an 1/6 output phase. The receiving chamber communicates with the input passage during the input phase, the receiving chamber communicates with the output passage during the output phase. In order to increase the transferring efficiency of the device, the device 5 has a plurality of pistons, receiving chambers, input passages and output passages, so it is needed to communicate a plurality of receiving chambers with a plurality of the input passages, and a plurality of receiving chambers with a plurality of output passages, it is a problem to do so. 10 Summary of the present invention The object of the invention is to provide a design method for the cartridge for the fluid transfer device so as to solve the above problem. 15 A design method for the cartridge for the fluid transfer device comprises providing an exterior cylindrical surface freely hermetically rotating in the cartridge; 20 arranging for the tail end of the first passage of the cartridge and the tail end of the second passage to communicate with the manifold chamber, and arranging for the head end of the first passage and the head end of the second passage to radially extend to the exterior surface of the cartridge. 25 Specifically, arranging the quantities of the first passage and the second passage equal to the quanty of the piston, and uniformly alternately arranging the first and second passages in a ring array. 30 Specifically, arranging for the first passage, the second passage and the manifold chamber each to be an hollow cylinder, and arranging the axis of the manifold chamber coaxial with the axis of the cartridge. 2/6 Specifically, arranging for the manifold chamber to communicate with the outside only through the first and second passages. Advantageously, arranging for the section of the cartridge along the 5 axial direction to be a form of letter "I ". Advantageously, providing the cartridge with an aspiral therethrough, which locates between the first and second passages, arranging for the aspiral not to communicate with the first passage 10 or the second passage. Advantageously, providing the cartridge with four thread holes axially passing through the cartridge. 15 Advantageous Effects Based on the simple and reliable principle, the tail ends of the first and second passages of the cartridge are configured to communicate with the manifold chamber so as to achieve that a plurality of receiving chambers share one cartridge, reducing the 20 quantity of components, simplifying the transmission mechanism, increasing the stability and reliability. The head ends of the first and second passages are configured to radially extend to the exterior surface of the cartridge, such 25 arrangement achieves that the receiving chamber communicates with the receiving chamber, and the receiving chamber communicates with the outside. The first passage, the second passage and the manifold chamber 30 each is configured to be an hollow cylinder, such arrangement achieves that the component can be easily manufactured. The section of the cartridge along the axial direction is configured to be a form of letter "I ", and the cartridge is provided with a 3/6 plurality of aspirals, such arrangement achieves that the weight of the device is reduced to make light weight design, and it is good for cooling the device. 5 Brief description of the drawing In the following, the invention will be described in greater detail by means of some embodiments with reference to the accompanying drawings, in which Fig.1 is a sectional front view of the fluid transfer device; 10 Fig.2 is a 3d-drawing of the cartridge; Fig.3-4 are sectional 3d-drawings of the cartridge from different view angles; 1. the receiving chamber; 2. the input passage; 3. the output passage; 4. the aspirail; 5. the cartridge; 15 6. the first passage; 7. the second passage; 8. the manifold chamber; 9. the piston. Detailed description of the preferred embodiment Inorder to distinguish between the head and the end of the 20 component, the portion near the axis of the cartridge 5 is called the tail end, and the portion away from the axis of the cartridge 5 is called the head end. Inorder to increase the transferring efficiency of the device, the 25 device includes four piston units, four piston units are uniformly arranged in a ring array, the axis of the array is the axis of the cartridge 5. Three of the four input passages 2 are sealed by plugs, and three of the four output passages 3 are sealed by plugs, the transfer device only keeps one input passage 2 and one output 30 passage 3. Referring to Fig.2 to Fig.4, the cartridge 5 is provided with an exterior ylindrical surface freely hermetically rotating in the 4/6 cartridge 5, the manifold chamber 8 is arranged in the middle portion of the cartridge 5, the cartridge 5 uniformly radially arranges eight cylindrical passages, four of passages are called the first passages 6, the rest four of passages are called the second 5 passages 7, the diameters of the first and second passages 6, 7 are equal, the first and second passages 6, 7 are alternately arranged. The ends of the first and second passages 6, 7 are configured to communicate with the manifold chamber 8, the heads of the first and second passages 6, 7 are configured to raidally extend to the 10 exterior surface of the cartridge 5, the manifold chamber 8 in the middle portion of the cartridge 5 can only communicate with outside through the first passage 6 or the second passage 7. The cartridge 5 also includes four threaded holes for fastening the fixed end of the swinging arm. The cartridge 5 also includes a aspirail 4 15 therethrough located between the first passage 6 and the second passage 7, the aspirail 4 do not communicate with the first passage 6 or the second passage 7. In the following, the working process of the cartridge 5 will be 20 discribed. The second passage 7 of the cartridge 5 communicates with the output passage 3, the first passage 6 of the cartridge 5 communicates with the receiving chamber 1. The piston 9 moves from the top dead center to the bottom dead center to compress 25 fluid in each of four receiving chambers 1 into the first passage 6, fluid is collected within the manifold chamber 8 located in the middle portion of the cartridge 5 through the first passage 6, and then fluid flows into the respective second passage 7 from the manifold chamber 8, finally flows into the output passage 3 from 30 the respective second passage 7, because the device only keeps one output passage 7 and the rest three output passages 3 are sealed, fluid from four receiving chamber 1 is totally compressed out of the output passage 3 by the piston 9. 5/6 The second passage 7 of the cartridge 5 communicates with the input passage 2, the first passage 6 of the cartridge 5 communicates with the receiving chamber 1. The piston 9 moves from the bottom dead center to the top dead center to to creat a negative pressure 5 area in the receiving chamber 1, under the effect of the atmosphere, the fluid is compressed into the input passage 2, then flows into the second passage 7, finally fluid flows into the respective receiving chamber 1 from the manifold chamber 8 through the first passage 6. 10 The cartridge 5 of the invention can be manufactured through sand mold casting. The exterior casting mold is broken to release the embryo, the sand core can be broken from the first and second passages 6,7, the broken core can be cleaned up from the first and 15 second passages 6,7, after turning or drilling or grinding, the casting embryo can be manufactured into a cartridge 5 of the invention. 6/6

Claims (7)

1. A design method for the cartridge for the fluid transfer device, comprising providing an exterior cylindrical surface freely hermetically rotating in the cartridge; characterized by 5 arranging for the tail end of the first passage (6) of the cartridge (5) and the tail end of the second passage (7) to communicate with the manifold chamber (8); arranging for the head end of the first passage (6) and the head end of the second passage (7) to radially extend to the exterior 10 surface of the cartridge (5).

2. A design method for the cartridge for the fluid transfer device according to claim 1, characterized by arranging for the quantities of the first passage (6) and the 15 second passage (7) equal to the quanty of the piston; uniformly alternately arranging the first and second passages (6, 7) in a ring array.

3. A design method for the cartridge for the fluid transfer 20 device according to claim 2, characterized by arranging for the first passage (6), the second passage (7) and the manifold chamber (8) each to be an hollow cylinder, the axis of the manifold chamber (8) coaxial with the axis of the cartridge. 25

4. A design method for the cartridge for the fluid transfer device according to claim 3, characterized by arranging for the manifold chamber (8) to communicate with the outside only through the first and second passages (6,7). 30

5. A design method for the cartridge for the fluid transfer device according to claim 1, characterized by arranging for the section of the cartridge (5) along the axial 1/2 direction to be a form of letter "I ".

6. A design method for the cartridge for the fluid transfer device according to claim 1, characterized by 5 providing the cartridge (5) with an aspiral (4) therethrough, which locates between the first and second passages (6,7), arranging for the aspiral (4) not to communicate with the first passage (6) or the second passage (7). 10

7. A design method for the cartridge for the fluid transfer device according to claim 1, characterized by providing the cartridge (5) with four thread holes axially passing through the cartridge (5). 2/2