High pressure air pump with reciprocating drive
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F04B-025/04
F04B-037/12
출원번호
US-0795865
(2010-06-08)
등록번호
US-8167591
(2012-05-01)
발명자
/ 주소
Sorensen, Duane A.
출원인 / 주소
Sorensen, Duane A.
대리인 / 주소
Dan Brown Law Office
인용정보
피인용 횟수 :
5인용 특허 :
15
초록▼
A reciprocating air pump with a frame and a pump for compressing air through a series of linear close-strokes and open-strokes between a first portion and a reciprocating portion. The pump includes plural cylinders, slideably and sealably engaged therein, and arranged as multiple-chambers defining m
A reciprocating air pump with a frame and a pump for compressing air through a series of linear close-strokes and open-strokes between a first portion and a reciprocating portion. The pump includes plural cylinders, slideably and sealably engaged therein, and arranged as multiple-chambers defining multiple-stages, for compression of air. A manifold with an air inlet cavity and inlet vent, and a compressed air outlet cavity with outlet vent. An outlet valve body is disposed between the first portion and the manifold, with an outlet valve that directs high-pressure compressed air into the outlet cavity, and with an inlet port coupled to the inlet cavity. A reciprocating linear drive with an electric motor delivers linear force to the reciprocating portion. A control system sequentially alternated the direction of force of the reciprocating linear drive, thereby applying linear force to the reciprocating portion.
대표청구항▼
1. A reciprocating air pump apparatus, comprising: a frame;a pump for compressing air through a series of linear close-strokes and open-strokes performed between a first portion that is fixed in position with respect to said frame and a reciprocating portion, and said pump having plural cylinders sl
1. A reciprocating air pump apparatus, comprising: a frame;a pump for compressing air through a series of linear close-strokes and open-strokes performed between a first portion that is fixed in position with respect to said frame and a reciprocating portion, and said pump having plural cylinders slideably and sealably engaged therein and arranged as multiple-chambers defining multiple-stages, and thereby enabling said series of close-strokes and open-strokes to compress air;a manifold, having an air inlet cavity with an inlet vent disposed on the exterior of said manifold, and having a compressed air outlet cavity formed therein with an outlet vent disposed on the exterior of said manifold;an outlet valve body disposed between said first portion of said pump and said manifold, and threadably engaged with said manifold, and having an outlet valve therein, which is pneumatically coupled to direct high-pressure compressed air into said outlet cavity, and having an inlet port formed therethrough to pneumatically couple inlet air from said inlet cavity, and whereinsaid inlet cavity and said air port are pneumatically coupled by an annular cavity defined between said manifold and said outlet valve body when threadably engaged together, and wherein said annular cavity is disposed about said outlet valve;a reciprocating linear drive having an electric motor, said drive fixed to said frame to deliver linear force to said reciprocating portion of said pump, anda control system coupled to said electric motor and operable to sequentially alternate the direction of force of said reciprocating linear drive, thereby enabling reciprocating application of linear force to said reciprocating portion. 2. The reciprocating air pump of claim 1, and wherein: said inlet cavity and said air port is arranged in thermally conductive proximity to said outlet valve body, thereby enabling transfer of heat from compressed air output from the reciprocating air pump to ambient air drawn into said reciprocating air pump. 3. The reciprocating air pump of claim 1, further comprising: an inlet air filter coupled to said inlet vent for filtering ambient air prior to entering the reciprocating air pump. 4. The reciprocal air pump of claim 1, and wherein: said manifold has cooling fins formed on the exterior surface thereof to facilitate heat transfer from said manifold to the ambient environment. 5. The reciprocating air pump of claim 1, and wherein: said reciprocating linear drive includes a rack and pinion gear, that is driven by said electric motor. 6. The reciprocating air pump of claim 5, and wherein: said electric motor is a gear motor terminated with said pinion gear. 7. The reciprocating air pump of claim 1, and wherein: said control system further comprises a means for reversing polarity of electric current to said motor to sequentially alternate the direction of rotation thereof. 8. The reciprocating air pump of claim 1, further comprising: at least a first position detector coupled to said control system, and aligned to detect the position of said reciprocal portion. 9. The reciprocating air pump of claim 1, and wherein said pump is configured for a predetermined length of stroke between a fully closed position and a fully open position, and further comprising: a first position detector coupled to said control system and aligned to indicate that said reciprocal portion is at said fully closed position;a second position detector coupled to said control system and aligned to indicate that said reciprocal portion is at said fully open position, and whereinsaid control system is operable to reverse the direction of force applied by said reciprocating linear drive upon indication that said reciprocal portion has reached either of said fully open position or said fully closed position. 10. The reciprocating air pump of claim 9, and wherein: said first position detector and said second position detector are limit switches. 11. The reciprocating air pump of claim 9, further comprising: an engagement member fixed to said reciprocating portion and aligned to engage said first position detector and said second position detector. 12. The reciprocating air pump if claim 1, and wherein: said reciprocating linear drive applies force to said reciprocating portion to induce a predetermined velocity of movement. 13. The reciprocating air pump of claim 12, and wherein: said predetermined velocity is selected to correspond to a rate of operation of a manually driven air pump. 14. The reciprocating air pump of claim 12, and wherein: said predetermined velocity is approximately one hundred twenty millimeters per second. 15. A reciprocating air pump apparatus, comprising: a frame;a pump for compressing air through a series of linear close-strokes and open-strokes performed between a reciprocating portion and a fixed portion that is fixed in position with respect to said frame, and wherein,(a) said reciprocating portion having a driven end and a first engagement end, and further including; an outer cylinder having a closed cap at the driven end and a seal assembly at the first engagement end;a piston rod, co-axially disposed within said outer cylinder, and fixed to said closed cap at the driven end, and having a piston fixed to the first engagement end, said piston having a piston valve; and(b) said fixed portion having a fixed end and a second engagement end, and further including; a manifold at the fixed end, having an ambient air inlet cavity with and inlet vent, and a compressed air outlet cavity with an outlet vent, formed therein;an outlet valve body threadably engaged with said manifold having an outlet valve therein, which is pneumatically coupled to said outlet cavity, and having an inlet port formed therethrough to pneumatically couple inlet air from said inlet cavity, and whereinsaid inlet cavity and said air port are pneumatically coupled by an annular cavity defined between said manifold and said outlet valve body when threadably engaged together, and wherein said annular cavity is disposed about said outlet valve;a middle cylinder coupled to said outlet valve body at the fixed end and coupled to a transfer valve body at the second engagement end;an inner cylinder coaxially disposed within said middle cylinder, and coupled to said outlet valve body at the fixed end and coupled to said transfer valve body at the second engagement end, and whereinsaid middle cylinder and said inner cylinder form an inlet annular chamber therebetween, which is bounded by said inlet valve body and said transfer valve body, said inlet annular chamber pneumatically coupled to said inlet port, and wherein(c) the first engagement end of said reciprocating portion slideably engages the second engagement end of said fixed portion, enabling the sequence of close-strokes and open-strokes, and wherein said outer cylinder, said middle cylinder, said inner cylinder and said piston rod are coaxially arranged in respective order of decreasing diameters, and whereinsaid transfer valve body sealably engages said piston rod and sealably engages the interior surface of said outer cylinder, thereby defining a first annular chamber bounded by said transfer valve body and said closed cap, and whereinsaid transfer valve body further includes an inlet valve disposed to direct the flow of air from said inlet air chamber into said first annular chamber on the open-stroke, and whereinsaid seal assembly sealably engages the exterior surface of said middle cylinder, and thereby defines a second annular chamber bounded by said seal assembly and said transfer valve body, and whereinsaid transfer valve body further includes a transfer valve disposed to direct the flow of air from said first annular chamber to said second annular chamber on the close-stroke, and whereinsaid piston sealably engages the interior of said inner cylinder and thereby defines a rod chamber bounded by said piston and said transfer valve body, and further defines a piston chamber bounded by said piston and said outlet valve body, and whereinsaid transfer valve body further includes a transfer port disposed to allow air to flow from said second annular chamber into said piston rod chamber on the open-stroke, and whereinsaid piston valve directs the flow of air from said rod chamber to said piston chamber on the open-stroke, and whereinsaid outlet valve directs air the flow from said piston chamber to said outlet cavity on the close-stroke;a reciprocating linear drive having an electric motor, said drive fixed to said frame to deliver linear force to the driven end of said reciprocating portion of said pump, anda control system coupled to said electric motor and operable to sequentially alternate the direction of force of said reciprocating linear drive, thereby enabling reciprocating movement of said reciprocating linear drive along a predetermined length of stroke between a fully closed position and a fully open position. 16. The reciprocating air pump of claim 15, and wherein: said reciprocating linear drive includes a rack and pinion gear, that is driven by said electric motor, and whereinsaid electric motor is a gear motor terminated with said pinion gear, and whereinsaid control system further comprises a means for reversing polarity of electric current to said motor to sequentially alternate the direction of rotation thereof. 17. The reciprocating air pump of claim 15, and wherein said pump is configured for a predetermined length of stroke between a fully closed position and a fully open position, and further comprising: an engagement member fixed to said reciprocating portion;a limit switch coupled to said control system and aligned to engage said engagement member to indicate that said reciprocal portion is at said fully closed position;a second limit switch coupled to said control system and aligned to engage said engagement member to indicate that said reciprocal portion is at said fully open position, and whereinsaid control system is operable to reverse the direction of force applied by said reciprocating linear drive upon indication that said reciprocal portion has reached either of said fully open position or said fully closed position. 18. The reciprocating air pump if claim 15, and wherein: said reciprocating drive applies force to said reciprocating portion to induce a predetermined velocity of movement that is selected to correspond to a rate of operation of a manually driven air pump.
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이 특허에 인용된 특허 (15)
Yang Hsi-Kung (No. 20 ; Lane 164 ; Yang-Ming Street Pan-Chiao ; Taipei Hsien TWX), Air pump with dual air intakes.
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