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1. 发明专利

DE4415088A1 Multi-piston cooling compressor 未知
公开(公告)号：DE4415088A1
公开(公告)日：1994-11-03
申请号：DE4415088
申请日：1994-04-29
申请人： TOYODA AUTOMATIC LOOM WORKS
发明人： TAKENAKA KENJI , KAYUKAWA HIROAKI , ITO MASAFUMI , HIRAMATSU OSAMU , HIROTA SUGURU , OZEKI TARO
IPC分类号： B60H1/32 , F04B27/10 , F04B39/00 , F04B39/10 , F04B25/00
摘要： The compressor has a cylinder head (20) which is fastened to the rear end of a cylinder-block arrangement of a compressor with a valve plate (5) inserted in between and which has a suction chamber (9) formed in it, which is formed in its radially outer area so that it surrounds a central outlet chamber (8). A cooling-gas inlet passage (21) is provided there in the compressor. The cooling-gas inlet passage (21) extends radially straight through the axial centre of the compressor and has at least two bores (23, 23) for creating a direct connection between the gas inlet passage (21) and the suction chamber (9) at two positions which are at a radial distance from one another. The cooling-gas inlet passage (21) can have a combination of at least two passage sections (21a, 21b) with different cross-sectional areas.

2. 发明专利

DE4415088C2 未知
公开(公告)号：DE4415088C2
公开(公告)日：2002-07-11
申请号：DE4415088
申请日：1994-04-29
申请人： TOYODA AUTOMATIC LOOM WORKS
发明人： TAKENAKA KENJI , KAYUKAWA HIROAKI , ITO MASAFUMI , HIRAMATSU OSAMU , HIROTA SUGURU , OZEKI TARO
IPC分类号： B60H1/32 , F04B27/10 , F04B39/00 , F04B39/10 , F04B27/08
摘要： A multiple-cylinder piston type compressor is disclosed. The compressor has a cylinder head fastened to the rear end of a cylinder block assembly of the compressor with a valve plate interposed therebetween and having formed therein a suction chamber formed in a radially outer peripheral region thereof so as to surround a central discharge chamber. The compressor further includes a refrigerant gas intake passage extending along a straight line and radially through the axial center of the compressor and having at least two holes for providing direct communication between the gas intake passage and the suction chamber at positions that are radially spaced. The refrigerant gas intake passage may include a combination of at least two passage portions having different cross-sectional areas.

3. 发明专利

DE4344818A1 未知
公开(公告)号：DE4344818A1
公开(公告)日：1994-07-07
申请号：DE4344818
申请日：1993-12-28
申请人： TOYODA AUTOMATIC LOOM WORKS
发明人： KIMURA KAZUYA , ITO MASAFUMI , MIZUTANI HIDEKI , MAKINO YOSHIHIRO , HIROTA SUGURU , OZEKI TARO , KATO KEIICHI , KAYUKAWA HIROAKI
IPC分类号： F04B27/18 , F04B27/08 , F04B49/00
摘要： A swash plate type variable displacement compressor comprises cylinder bores, pistons, a suction chamber and a discharge chamber. A suction valve introduces a low pressure gas into a working chamber in each cylinder bore. A discharge valve introduces a high pressure gas in the working chamber into the discharge chamber during a compression stroke. A crank chamber communicates to each of the cylinder bores at rear sides of the pistons. A swash plate is tiltably supported on a drive shaft and connected to each of the pistons through associated rods. The swash plate makes the pistons reciprocate in response to its undulating swing motion and varies its inclination angle based upon pressure differential between pressure in the suction chamber and pressure in the crank chamber therefore adjusting discharge displacement. A gas supply passage communicates each cylinder bore to the crank chamber in order to supply gas having a lower pressure than that in the working chamber at the time of completing the compression stroke. A gas bleed passage communicates the crank chamber to the suction chamber in order to introduce gas in the crank chamber into the suction chamber. A pressure control valve is provided in the gas supply passage or the gas bleed passage to control pressure of gas in the crank chamber. A valve is provided for opening and closing the gas supply passage in the middle of the compression stroke of each of the pistons.

4. 发明专利

DE4344818C2 未知
公开(公告)号：DE4344818C2
公开(公告)日：1996-12-12
申请号：DE4344818
申请日：1993-12-28
申请人： TOYODA AUTOMATIC LOOM WORKS
发明人： KIMURA KAZUYA , ITO MASAFUMI , MIZUTANI HIDEKI , MAKINO YOSHIHIRO , HIROTA SUGURU , OZEKI TARO , KATO KEIICHI , KAYUKAWA HIROAKI
IPC分类号： F04B27/18 , F04B39/10 , F04B27/16
摘要： A swash plate type variable displacement compressor comprises cylinder bores, pistons, a suction chamber and a discharge chamber. A suction valve introduces a low pressure gas into a working chamber in each cylinder bore. A discharge valve introduces a high pressure gas in the working chamber into the discharge chamber during a compression stroke. A crank chamber communicates to each of the cylinder bores at rear sides of the pistons. A swash plate is tiltably supported on a drive shaft and connected to each of the pistons through associated rods. The swash plate makes the pistons reciprocate in response to its undulating swing motion and varies its inclination angle based upon pressure differential between pressure in the suction chamber and pressure in the crank chamber therefore adjusting discharge displacement. A gas supply passage communicates each cylinder bore to the crank chamber in order to supply gas having a lower pressure than that in the working chamber at the time of completing the compression stroke. A gas bleed passage communicates the crank chamber to the suction chamber in order to introduce gas in the crank chamber into the suction chamber. A pressure control valve is provided in the gas supply passage or the gas bleed passage to control pressure of gas in the crank chamber. A valve is provided for opening and closing the gas supply passage in the middle of the compression stroke of each of the pistons.

5. 发明专利

JPH06173853A OSCILLATING SWASH PLATE TYPE VARIABLE DISPLACEMENT COMPRESSOR 失效
公开(公告)号：JPH06173853A
公开(公告)日：1994-06-21
申请号：JP33205092
申请日：1992-12-11
申请人： TOYODA AUTOMATIC LOOM WORKS
发明人： MIZUTANI HIDEKI , OZEKI TARO , KAWAMURA CHUICHI , TAKENAKA KENJI
IPC分类号： F04B27/08 , F04B27/14 , F04B39/10
摘要： PURPOSE:To relieve starting shock by conducting small displacement operation completely for restraint of power loss at the time of high-speed starting. CONSTITUTION:The outlet 1c of a suction passage 1b which communicates a suction chamber 3a with an operating chamber R in a cylinder bore 1a is opened to the inner periphery surface of the cylinder bore 1a, and the front of a piston 13 which is at the bottom dead point of the piston 13 in a minimum displacement condition is set so as to close a part of the outlet 1c of the suction passage 1b.

6. 发明专利

JPH06129350A RECIPROCATIVE COMPRESSOR 失效
公开(公告)号：JPH06129350A
公开(公告)日：1994-05-10
申请号：JP27629592
申请日：1992-10-14
申请人： TOYODA AUTOMATIC LOOM WORKS
发明人： KIMURA KAZUYA , OZEKI TARO , KATO KEIICHI , HIROTA SUGURU
IPC分类号： F04B27/08 , F04B27/14 , F04B39/10
摘要： PURPOSE:To maintain sufficient volume efficiency, or enhance the power efficiency and also suppress rise of the discharge temp. while sufficient volume efficiency is maintained, and allow a path to be in communication by a small width with at least one of the low pressure side and low pressure side of a residual gas bypass groove and the low pressure side of a leak gas bypass groove. CONSTITUTION:A residual gas bypass groove 28 is formed in a rotary valve 22 having a suction passage 25, being composed of a high pressure side groove 28a leading to the bore 1A at the end of discharging via a path 2A, a low pressure side groove 28b leading to the bore 1D on the low pressure side via a path 2D, and a communication groove 28c which puts the high pressure side groove 28a and low pressure side groove 28b in communication. The paths 2A-2F are made as a long hole having a section longer in the axial direction, so that the grooves 28a, 28b are in communication by a small communicating width (angle). The paths 2A-2F have a constant section area, and a refrigerant gas in a sanction chamber 17 is sucked into the bores 1A-1F in favorable performance.

7. 发明专利

JPH09209925A SWASH PLATE TYPE COMPRESSOR 失效
公开(公告)号：JPH09209925A
公开(公告)日：1997-08-12
申请号：JP1541196
申请日：1996-01-31
申请人： TOYODA AUTOMATIC LOOM WORKS
发明人： SUGIURA MANABU , OZEKI TARO , MERA MINORU
IPC分类号： F04B27/08 , F04B27/10
摘要： PROBLEM TO BE SOLVED: To reduce noise generated from a thrust bearing, and achieve calm operation by providing a slide bearing as the thrust bearing between a lug plate and a inner surface of a housing. SOLUTION: A thrust bearing 50 is formed between an inner surface of a front housing 22 and a front surface of a Jug plate 35. A swash plate 39 thus receives gas pressure of a cylinder bore 30 to receive axial direction force from the right side to the left side for supporting the force in the same direction applied to the Jug plate 35. This thrust bearing 50 is composed of a semi- spherical bearing element 51 of which spherical surface part is fitted with a spherically recessed holding part formed in an inner surface of a front housing 22 to be supported. A radius of a spherical surface part of the holding part is set to be only a little larger than a radius of a spherical surface of the bearing element 51, so the bearing element 51 is slidably engaged in the holding part, and that lubricating oil can be easily taken in. Slide characteristics can thus be improved to provide calm operation.

8. 发明专利

JPH07139463A RECIPROCATING COMPRESSOR 失效
公开(公告)号：JPH07139463A
公开(公告)日：1995-05-30
申请号：JP28363893
申请日：1993-11-12
申请人： TOYODA AUTOMATIC LOOM WORKS
发明人： TAKENAKA KENJI , HIROTA SUGURU , OZEKI TARO , ITO MASABUMI
IPC分类号： F04B27/08 , F04B39/00
摘要： PURPOSE:To reduce suction pulse due to pressure loss by arranging an intake passage communicated with a suction chamber perpendicularly to an machine axis, varying a sectional area of the intake passage for forming a pulse attenuation part, and thereby equalizing pressure of coolant gas to be suctioned by a plurality of bores. CONSTITUTION:A cylinder head 20 is installed on a cylinder block 1 in which a plurality of bores 2 are parallely formed through a valve plate 5 which has suction ports 3 and discharge ports 4 correspondingly to the bores 2. When pistons 7 inserted into the respective bores 2 reciprocate with specified phase differences, coolant gas is suctioned into a suction chamber 9, comproessed in the bores 2, and discharged to a discharge chamber 8. An expanded portion 20a is formed on a side end wall of a cylinder head 20, while an intake passage 21 extended in a direction perpendicular to a machine axis is formed thereinside. A pulse attenuation part composed of the expanded portion 21a and a contracted portion 21b is formed in the intake passage 21, and is communicated with each area in the suction chamber through branch ports 21c, 21c'.

9. 发明专利

JPH07103138A SWASH PLATE TYPE VARIABLE DISPLACEMENT COMPRESSOR 失效
公开(公告)号：JPH07103138A
公开(公告)日：1995-04-18
申请号：JP25196793
申请日：1993-10-07
申请人： TOYODA AUTOMATIC LOOM WORKS
发明人： TAKENAKA KENJI , KIMURA KAZUYA , OZEKI TARO , HIROTA SUGURU
IPC分类号： F04B49/06 , F04B27/08 , F04B27/14
摘要： PURPOSE:To improve the durability of an electromagnetic clutch or the like absorbing any shock in the case where a compressor is restarted at the early stage as well as to reduce the extent of noise by performing a movement to the minimum inclination of a swash plate quickly after the compressor is stopped. CONSTITUTION:In a minimum displacement starting type swash plate compressor, an inlet port 3a interconnecting a suction chamber 5 and a cylinder bore operating chamber 10 is formed in a valve plate 3. An inlet valve 7a separates from a valve seat being situated on the circumference of this inlet port 3a, forming a bursting passage 33. A roughened surface 3c for doing this separation of the inlet valve 7a smoothly is installed in the valve seat. Immediately after the compressor is stopped, high pressure coolant gas in the operating chamber 10 is discharged to the suction chamber 5 by way of the bursting passage 33 and the inlet port 3a from the cylinder bore operating chamber 10, whereby an angle of inclination in the swash plate is quickly selected from the maximum to the minimum.

10. 发明专利

JPH06249145A OSCILLATING SWASH PLATE TYPE VARIABLE DISPLACEMENT COMPRESSOR 失效
公开(公告)号：JPH06249145A
公开(公告)日：1994-09-06
申请号：JP33252793
申请日：1993-12-27
申请人： TOYODA AUTOMATIC LOOM WORKS
发明人： KIMURA KAZUYA , ITO MASABUMI , MIZUTANI HIDEKI , MAKINO YOSHIHIRO , HIROTA SUGURU , OZEKI TARO , KATO KEIICHI , KAYUKAWA HIROAKI
IPC分类号： F04B27/08 , F04B27/14 , F04B39/10
摘要： PURPOSE:To reduce a power loss required to control a delivery capacity by supplying a refrigerant gas with suction and delivery pressures set at middle pressure into a crankcase. CONSTITUTION:A rotary valve 26 is stored in a valve storing chamber 25 formed by a recessed section 1b of a cylinder block 1 and an internal surface 4b formed on a partition wall 4a of a rear housing 4 so that it can. be rotated by a rotating shaft 10. Also a suction passage 28 and a suction guide groove 29 formed in the rotary valve 26 are formed so that a refrigerant gas in a suction chamber 8 can be guided into a cylinder bore working chamber 30 during suction stroke through a leading path 1c of a cylinder block 1. Then a connecting path 26b used for an air supply passage 33 is formed in the rotary valve 26, and the refrigerant gas at a middle pressure is supplied from the working chamber 30 during compression into a crankcase 3 through the air supply passage 33 comprising a first leading path 1c, the connecting path 26b, and a second leading path (g) in a bearing 12.

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