Rotary fluid machinery, vane fluid machinery, and waste heat recovery device of internal combustion engine

Claim 2

A rotary type fluid machine having an expanding function and a compressing function, including a casing ( 7 ) having a rotor chamber ( 14 ), a rotor ( 31 ) accommodated in said rotor chamber ( 14 ), and a plurality of vane-piston units (U 1 -U 12 ) which are radially disposed in said rotor ( 31 ) around a rotary axis (L) thereof and freely reciprocated in the respective radial directions, each of the vane-piston units (U 1 -U 12 ) having a vane ( 42 ) sliding in said rotor chamber ( 14 ) and a piston ( 41 ) placed in abutment against a non-slide side of the vane ( 42 ), wherein when functioning as an expanding machine ( 4 ), expansion of a high pressure fluid is used to operate said piston ( 41 ) to rotate said rotor ( 31 ) via a power conversion device and expansion of a low pressure fluid caused by a pressure reduction in said high pressure fluid is used to rotate said rotor ( 31 ) via said vane ( 42 ), while when functioning as a compressing machine, rotation of said rotor ( 31 ) is used to supply a low pressure fluid to the side of said piston ( 41 ) via said vane ( 42 ) and said piston ( 41 ) is operated by said vane ( 42 ) to convert said low pressure fluid to a high pressure fluid.

Claim 3

A rotary type fluid machine having an expanding function and a compressing function according to claim 1 , wherein a section (B) of said rotor chamber ( 14 ) in a phantom plane (A) including the rotary axis (L) of said rotor ( 31 ) is formed of a pair of semi-circular sections (B 1 ) with diameters (g) thereof opposed to each other and a rectangular section (B 2 ) formed by connecting opposed one ends of both the diameters (g) to each other and opposed other ends of the diameters to each other, respectively, each of the vanes ( 42 ) includes a vane body ( 43 ) and a seal member ( 44 ) mounted to the vane body ( 43 ) and pressed against said rotor chamber ( 14 ) with a spring force, and the seal member ( 44 ) has a semi-circular arcuate portion ( 55 ) sliding on an inner peripheral surface ( 45 ) defined by said semi-circular section (B 1 ) of said rotor chamber ( 14 ) and a pair of parallel portions ( 56 ) respectively sliding on opposed inner end surfaces ( 47 ) defined by the rectangular section (B 2 ).

Claim 4

A rotary type fluid machine having an expanding function and a compressing function according to claim 2 , wherein each of the vane bodies ( 43 ) has a pair of parallel portions ( 48 ) corresponding to both parallel portions ( 56 ) of said seal member ( 44 ), rollers ( 59 ) provided on both the parallel portions ( 48 ) are respectively placed in rotatable engagement with both of annular grooves ( 60 ) formed on said opposed inner end surfaces ( 47 ) of said casing ( 7 ) such that a tip surface of each vane body ( 43 ) is always spaced apart from said inner peripheral surface ( 45 ) of said rotor chamber ( 14 ).

Claim 5

A vane type fluid machine, including a casing ( 7 ) having a rotor chamber ( 14 ), a rotor ( 31 ) accommodated in the rotor chamber ( 14 ), and a plurality of vanes ( 42 ) which are radially disposed in said rotor ( 31 ) around a rotary axis (L) thereof and freely reciprocated in the respective radial directions, wherein a section (B) of said rotor chamber ( 14 ) in a phantom plane (A) including the rotary axis (L) of said rotor ( 31 ) is formed of a pair of semi-circular sections (B 1 ) with diameters (g) thereof opposed to each other and a rectangular section (B 2 ) formed by connecting opposed one ends of both the diameters (g) to each other and opposed other ends of the diameters to each other, respectively, each of the vanes ( 42 ) includes a vane body ( 43 ) and a seal member ( 44 ) mounted to the vane body ( 43 ) and pressed against said rotor chamber ( 14 ) with a spring force, and the seal member ( 44 ) has a semi-circular arcuate portion ( 55 ) sliding on an inner peripheral surface ( 45 ) defined by said semi-circular section (B 1 ) of said rotor chamber ( 14 ) and a pair of parallel portions ( 56 ) respectively sliding on opposed inner end surfaces ( 47 ) defined by the rectangular section (B 2 ).

Claim 6

A vane type fluid machine, including a casing ( 7 ) having a rotor chamber ( 14 ), a rotor ( 31 ) accommodated in the rotor chamber ( 14 ), and a plurality of vanes ( 42 ) which are radially disposed in said rotor ( 31 ) around a rotary axis (L) thereof and freely reciprocated in the respective radial directions, wherein a section (B) of said rotor chamber ( 14 ) in a phantom plane (A) including the rotary axis (L) of said rotor ( 31 ) is formed of a pair of semi-circular sections (B 1 ) with diameters (g) thereof opposed to each other and a rectangular section (B 2 ) formed by connecting opposed one ends of both the diameters (g) to each other and opposed other ends of the diameters to each other, respectively, each of the vanes ( 42 ) includes a vane body ( 43 ) and a seal member ( 44 ) mounted to the vane body ( 43 ) and pressed against said rotor chamber ( 14 ) with a spring force, and the seal member ( 44 ) has a semi-circular arcuate portion ( 55 ) sliding on an inner peripheral surface ( 45 ) defined by said semi-circular section (B 1 ) of said rotor chamber ( 14 ) and a pair of parallel portions ( 56 ) respectively sliding on opposed inner end surfaces ( 47 ) defined by the rectangular section (B 2 ).

Claim 7

A vane type fluid machine according to claim 4 , wherein each of the vane bodies ( 43 ) has a pair of parallel portions ( 48 ) corresponding to both parallel portions ( 56 ) of said seal member ( 44 ), rollers ( 59 ) provided on both the parallel portions ( 48 ) are respectively placed in rotatable engagement with both of annular grooves ( 60 ) formed on said opposed inner end surfaces ( 47 ) of said casing ( 7 ) such that a tip surface of each vane body ( 43 ) is always spaced apart from said inner peripheral surface ( 45 ) of said rotor chamber ( 14 ).

Claim 8

A waste heat recovering device for an internal combustion engine, having an evaporating machine ( 3 ) using waste heat from an internal combustion engine ( 1 ) as a heat source to generate high pressure vapor, an expanding machine ( 4 ) for generating an output by expansion of said high pressure vapor, and a condensing machine ( 5 ) for liquefying low pressure vapor exhausted from said expanding machine ( 4 ), characterized in that said expanding machine ( 4 ) includes a casing ( 7 ) having a rotor chamber ( 14 ), a rotor ( 31 ) accommodated in the rotor chamber ( 14 ), and a plurality of vane-piston units (U 1 -U 12 ) which are radially disposed in said rotor ( 31 ) around a rotary axis (L) thereof and freely reciprocated in the respective radial directions, each of the vane-piston units (U 1 -U 12 ) having a vane ( 42 ) sliding in said rotor chamber ( 14 ) and a piston ( 41 ) placed in abutment against a non-slide side of the vane ( 42 ), expansion of said high pressure vapor being used to operate said piston ( 41 ) to rotate said rotor ( 31 ) via said vane ( 42 ) and expansion of a low pressure gas caused by a pressure reduction in said high pressure gas being used to rotate said rotor ( 31 ) via said vane ( 42 ).

Claim 9

A waste heat recovering device for an internal combustion engine, having an evaporating machine ( 3 ) using waste heat from an internal combustion engine ( 1 ) as a heat source to generate high pressure vapor, an expanding machine ( 4 ) for generating an output by expansion of said high pressure vapor, and a condensing machine ( 5 ) for liquefying low pressure vapor exhausted from said expanding machine ( 4 ), characterized in that said expanding machine ( 4 ) includes a casing ( 7 ) having a rotor chamber ( 14 ), a rotor ( 31 ) accommodated in the rotor chamber ( 14 ), and a plurality of vane-piston units (U 1 -U 12 ) which are radially disposed in said rotor ( 31 ) around a rotary axis (L) thereof and freely reciprocated in the respective radial directions, each of the vane-piston units (U 1 -U 12 ) having a vane ( 42 ) sliding in said rotor chamber ( 14 ) and a piston ( 41 ) placed in abutment against a non-slide side of the vane ( 42 ), expansion of said high pressure vapor being used to operate said piston ( 41 ) to rotate said rotor ( 31 ) via said vane ( 42 ) and expansion of a low pressure gas caused by a pressure reduction in said high pressure gas being used to rotate said rotor ( 31 ) via said vane ( 42 ).

Claim 10

A waste heat recovering device for an internal combustion engine according to claim 6 , wherein a section (B) of said rotor chamber ( 14 ) in a phantom plane (A) including the rotary axis (L) of said rotor ( 31 ) is formed of a pair of semi-circular sections (B 1 ) with diameters (g) thereof opposed to each other and a rectangular section (B 2 ) formed by connecting opposed one ends of both the diameters (g) to each other and opposed other ends of the diameters to each other, respectively, each of the vanes ( 42 ) including a vane body ( 43 ) and a seal member ( 44 ) mounted to the vane body ( 43 ) and pressed against said rotor chamber ( 14 ) with a spring force, and the seal member ( 44 ) has a semi-circular arcuate portion ( 55 ) sliding on an inner peripheral surface ( 45 ) defined by said semi-circular section (B 1 ) of said rotor chamber ( 14 ) and a pair of parallel portions ( 56 ) respectively sliding on opposed inner end surfaces ( 47 ) defined by the rectangular section (B 2 ).

Claim 11

A waste heat recovering device for an internal combustion engine according to claim 7 , wherein each of the vane bodies ( 43 ) has a pair of parallel portions( 48 ) corresponding to both the parallel portions ( 56 ) of said seal member ( 44 ), rollers ( 59 ) provided on both the parallel portions ( 48 ) are respectively placed in rotatable engagement with both of annular grooves ( 60 ) formed on said opposed inner end surfaces ( 47 ) of said casing ( 7 ) such that a tip surface of each vane body ( 43 ) is always spaced apart from said inner peripheral surface ( 45 ) of said rotor chamber ( 14 ).

Claim 12

A waste heat recovering device for an internal combustion engine, having an evaporating machine ( 3 ) using waste heat from an internal combustion engine ( 1 ) as a heat source to generate high pressure vapor, an expanding machine ( 4 ) for generating an output by expansion of said high pressure vapor, and a condensing machine ( 5 ) for liquefying low pressure vapor exhausted from the expanding machine ( 4 ), characterized in that said expanding machine ( 4 ) includes a casing ( 7 ) having a rotor chamber ( 14 ), a rotor ( 31 ) accommodated in the rotor chamber ( 14 ), and a plurality of vanes ( 42 ) which are radially disposed in said rotor ( 31 ) around a rotary axis (L) thereof and freely reciprocated in the respective radial directions, a section (B) of said rotor chamber ( 14 ) in a phantom plane (A) including the rotary axis (L) of said rotor ( 31 ) being formed of a pair of semi-circular sections (B 1 ) with diameters (g) thereof opposed to each other and a rectangular section (B 2 ) formed by connecting opposed one ends of both the diameters (g) to each other and opposed other ends of the diameters to each other, respectively, each of the vanes ( 42 ) comprising a vane body ( 43 ) and a seal member ( 44 ) mounted to the vane body ( 43 ) and pressed against said rotor chamber ( 14 ) with a spring force, and the seal member ( 44 ) having a semi-circular arcuate portion ( 55 ) sliding on an inner peripheral surface ( 45 ) defined by said semi-circular section (B 1 ) of said rotor chamber ( 14 ) and a pair of parallel portions ( 56 ) respectively sliding on opposed inner end surfaces ( 47 ) defined by said rectangular section (B 2 ).

Claim 13

A waste heat recovering device for an internal combustion engine, having an evaporating machine ( 3 ) using waste heat from an internal combustion engine ( 1 ) as a heat source to generate high pressure vapor, an expanding machine ( 4 ) for generating an output by expansion of said high pressure vapor, and a condensing machine ( 5 ) for liquefying low pressure vapor exhausted from the expanding machine ( 4 ), characterized in that said expanding machine ( 4 ) includes a casing ( 7 ) having a rotor chamber ( 14 ), a rotor ( 31 ) accommodated in the rotor chamber ( 14 ), and a plurality of vanes ( 42 ) which are radially disposed in said rotor ( 31 ) around a rotary axis (L) thereof and freely reciprocated in the respective radial directions, a section (B) of said rotor chamber ( 14 ) in a phantom plane (A) including the rotary axis (L) of said rotor ( 31 ) being formed of a pair of semi-circular sections (B 1 ) with diameters (g) thereof opposed to each other and a rectangular section (B 2 ) formed by connecting opposed one ends of both the diameters (g) to each other and opposed other ends of the diameters to each other, respectively, each of the vanes ( 42 ) comprising a vane body ( 43 ) and a seal member ( 44 ) mounted to the vane body ( 43 ) and pressed against said rotor chamber ( 14 ) with a spring force, and the seal member ( 44 ) having a semi-circular arcuate portion ( 55 ) sliding on an inner peripheral surface ( 45 ) defined by said semi-circular section (B 1 ) of said rotor chamber ( 14 ) and a pair of parallel portions ( 56 ) respectively sliding on opposed inner end surfaces ( 47 ) defined by said rectangular section (B 2 ).

Claim 14

A waste heat recovering device for an internal combustion engine according to claim 9 , wherein each of the vane body ( 43 ) has a pair of parallel portions ( 48 ) corresponding to both the parallel portions ( 56 ) of said seal member ( 44 ), rollers ( 59 ) provided on both the parallel portions ( 48 ) are respectively placed in rotatable engagement with both of annular grooves ( 60 ) formed on said opposed inner end surfaces ( 47 ) of said casing ( 7 ) such that a tip surface of each vane body ( 43 ) is always spaced apart from said inner peripheral surface ( 45 ) of said rotor chamber ( 14 ).

Claim 15

A rotary type fluid machine having an expanding function and a compressing function, including a casing ( 7 ) having a rotor chamber ( 14 ), a rotor ( 31 ) accommodated in the rotor chamber ( 14 ), and a plurality of vane-piston units (U 1 -U 12 ) which are radially disposed in said rotor ( 31 ) around a rotary axis (L) thereof and freely reciprocated in the respective radial directions, each of the vane-piston units (U 1 -U 12 ) including a vane ( 42 ) sliding in said rotor chamber ( 14 ) and a piston ( 41 ) placed in abutment against a non-slide side of the vane ( 42 ), wherein when functioning as an expanding machine ( 4 ), expansion of a high pressure fluid is used to operate said piston ( 41 ) to rotate said rotor ( 31 ) via a power conversion device, and expansion of a low pressure fluid caused by a pressure reduction in said high pressure fluid is used to rotate said rotor ( 31 ) via said vane ( 42 ), while when functioning as a compressing machine, rotation of said rotor ( 31 ) is used to supply a low pressure fluid to the side of said piston ( 41 ) via said vane ( 42 ) and said piston ( 41 ) is operated by said vane ( 42 ) to convert said low pressure fluid to a high pressure fluid, characterized in that said fluid machine includes fluid exhausting means ( 121 , 122 , 123 ) for maintaining an airtight state between said piston ( 41 ) and a cylinder ( 39 ) during a stroke of the piston ( 41 ) sliding in the cylinder ( 39 ) formed in said rotor ( 31 ), and for exhausting a fluid stored in the cylinder ( 39 ) outwardly of the cylinder ( 39 ) at a stroke end of the piston ( 41 ).

Claim 16

A rotary type fluid machine having an expanding function and a compressing function, including a casing ( 7 ) having a rotor chamber ( 14 ), a rotor ( 31 ) accommodated in the rotor chamber ( 14 ), and a plurality of vane-piston units (U 1 -U 12 ) which are radially disposed in said rotor ( 31 ) around a rotary axis (L) thereof and freely reciprocated in the respective radial directions, each of the vane-piston units (U 1 -U 12 ) including a vane ( 42 ) sliding in said rotor chamber ( 14 ) and a piston ( 41 ) placed in abutment against a non-slide side of the vane ( 42 ), wherein when functioning as an expanding machine ( 4 ), expansion of a high pressure fluid is used to operate said piston ( 41 ) to rotate said rotor ( 31 ) via a power conversion device, and expansion of a low pressure fluid caused by a pressure reduction in said high pressure fluid is used to rotate said rotor ( 31 ) via said vane ( 42 ), while when functioning as a compressing machine, rotation of said rotor ( 31 ) is used to supply a low pressure fluid to the side of said piston ( 41 ) via said vane ( 42 ) and said piston ( 41 ) is operated by said vane ( 42 ) to convert said low pressure fluid to a high pressure fluid, characterized in that said fluid machine includes fluid exhausting means ( 121 , 122 , 123 ) for maintaining an airtight state between said piston ( 41 ) and a cylinder ( 39 ) during a stroke of the piston ( 41 ) sliding in the cylinder ( 39 ) formed in said rotor ( 31 ), and for exhausting a fluid stored in the cylinder ( 39 ) outwardly of the cylinder ( 39 ) at a stroke end of the piston ( 41 ).

Claim 17

A rotary type fluid machine having an expanding function and a compressing function, including a casing ( 7 ) having a rotor chamber ( 14 ), a rotor ( 31 ) accommodated in the rotor chamber ( 14 ), and a plurality of vane-piston units (U 1 -U 12 ) which are radially disposed in said rotor ( 31 ) around a rotary axis (L) thereof and freely reciprocated in the respective radial directions, each of the vane-piston units (U 1 -U 12 ) including a vane ( 42 ) sliding in said rotor chamber ( 14 ) and a piston ( 41 ) placed in abutment against a non-slide side of the vane ( 42 ), wherein when functioning as an expanding machine ( 4 ), expansion of a high pressure fluid is used to operate said piston ( 41 ) to rotate said rotor ( 31 ) via a power conversion device and expansion of a low pressure fluid caused by a pressure reduction in said high pressure fluid is used to rotate said rotor ( 31 ) via said vane ( 42 ), while when functioning as a compressing machine, rotation of said rotor ( 31 ) is used to supply a low pressure fluid to the side of said piston ( 41 ) via said vane ( 42 ) and said piston ( 41 ) is operated by said vane ( 42 ) to convert said low pressure fluid to a high pressure fluid, characterized in that first passages ( 142 , 143 ) for supplying and exhausting a high pressure fluid to a cylinder ( 39 ) formed in said rotor ( 31 ) and second passages ( 144 , 145 ) for supplying and exhausting a low pressure fluid from said cylinder ( 39 ) to a rotor chamber ( 14 ) are formed in a fixed shaft ( 65 ), and that a conversion mechanism ( 64 ) which is rotated integrally with said rotor ( 31 ) to selectively connect said first passages ( 142 , 143 ) or said second passages ( 144 , 145 ) to the cylinder ( 39 ) is fitted rotatably and in a sealing condition relative to said fixed shaft ( 65 ).

Claim 18

A rotary type fluid machine having an expanding function and a compressing function, including a casing ( 7 ) having a rotor chamber ( 14 ), a rotor ( 31 ) accommodated in the rotor chamber ( 14 ), and a plurality of vane-piston units (U 1 -U 12 ) which are radially disposed in said rotor ( 31 ) around a rotary axis (L) thereof and freely reciprocated in the respective radial directions, each of the vane-piston units (U 1 -U 12 ) including a vane ( 42 ) sliding in said rotor chamber ( 14 ) and a piston ( 41 ) placed in abutment against a non-slide side of the vane ( 42 ), wherein when functioning as an expanding machine ( 4 ), expansion of a high pressure fluid is used to operate said piston ( 41 ) to rotate said rotor ( 31 ) via a power conversion device and expansion of a low pressure fluid caused by a pressure reduction in said high pressure fluid is used to rotate said rotor ( 31 ) via said vane ( 42 ), while when functioning as a compressing machine, rotation of said rotor ( 31 ) is used to supply a low pressure fluid to the side of said piston ( 41 ) via said vane ( 42 ) and said piston ( 41 ) is operated by said vane ( 42 ) to convert said low pressure fluid to a high pressure fluid, characterized in that first passages ( 142 , 143 ) for supplying and exhausting a high pressure fluid to a cylinder ( 39 ) formed in said rotor ( 31 ) and second passages ( 144 , 145 ) for supplying and exhausting a low pressure fluid from said cylinder ( 39 ) to a rotor chamber ( 14 ) are formed in a fixed shaft ( 65 ), and that a conversion mechanism ( 64 ) which is rotated integrally with said rotor ( 31 ) to selectively connect said first passages ( 142 , 143 ) or said second passages ( 144 , 145 ) to the cylinder ( 39 ) is fitted rotatably and in a sealing condition relative to said fixed shaft ( 65 ).

Claim 19

A rotary type fluid machine having an expanding function and a compressing function, including a casing ( 7 ) having a rotor chamber ( 14 ), a rotor ( 31 ) accommodated in the rotor chamber ( 14 ), and a plurality of vane-piston units (U 1 -U 12 ) which are radially disposed in said rotor ( 31 ) around a rotary axis (L) thereof and freely reciprocated in the respective radial directions, each of the vane-piston units (U 1 -U 12 ) including a vane ( 42 ) sliding in said rotor chamber ( 14 ) and a piston ( 41 ) placed in abutment against a non-slide side of the vane ( 42 ), wherein when functioning as an expanding machine ( 4 ), expansion of a high pressure fluid is used to operate said piston ( 41 ) to rotate said rotor ( 31 ) via a power conversion device and expansion of a low pressure fluid caused by a pressure reduction in said high pressure fluid is used to rotate said rotor ( 31 ) via said vane ( 42 ), while when functioning as a compressing machine, rotation of said rotor ( 31 ) is used to supply a low pressure fluid to the side of said piston ( 41 ) via said vane ( 42 ) and said piston ( 41 ) is operated by said vane ( 42 ) to convert said low pressure fluid to a high pressure fluid, characterized in that first passages ( 94 , 95 ) for supplying and exhausting a high pressure fluid to a cylinder ( 39 ) formed in said rotor ( 31 ) and second passages ( 102 , 103 ) for supplying and exhausting a low pressure fluid from said cylinder ( 39 ) to a rotor chamber ( 14 ) are formed in a fixed shaft ( 65 ), that a conversion mechanism ( 64 ) which is rotated integrally with said rotor ( 31 ) to selectively communicate said first passages ( 94 , 95 ) or said second passages ( 102 , 103 ) to the cylinder ( 39 ) is fitted rotatably and in a sealing condition relative to said fixed shaft ( 65 ), and that port grooves ( 124 , 125 ) surrounding outer peripheries of said first passages ( 94 , 95 ) are formed on a slide surface between the fixed shaft ( 65 ) and the conversion mechanism ( 64 ).

Claim 20

A rotary type fluid machine having an expanding function and a compressing function, including a casing ( 7 ) having a rotor chamber ( 14 ), a rotor ( 31 ) accommodated in the rotor chamber ( 14 ), and a plurality of vane-piston units (U 1 -U 12 ) which are radially disposed in said rotor ( 31 ) around a rotary axis (L) thereof and freely reciprocated in the respective radial directions, each of the vane-piston units (U 1 -U 12 ) including a vane ( 42 ) sliding in said rotor chamber ( 14 ) and a piston ( 41 ) placed in abutment against a non-slide side of the vane ( 42 ), wherein when functioning as an expanding machine ( 4 ), expansion of a high pressure fluid is used to operate said piston ( 41 ) to rotate said rotor ( 31 ) via a power conversion device and expansion of a low pressure fluid caused by a pressure reduction in said high pressure fluid is used to rotate said rotor ( 31 ) via said vane ( 42 ), while when functioning as a compressing machine, rotation of said rotor ( 31 ) is used to supply a low pressure fluid to the side of said piston ( 41 ) via said vane ( 42 ) and said piston ( 41 ) is operated by said vane ( 42 ) to convert said low pressure fluid to a high pressure fluid, characterized in that first passages ( 94 , 95 ) for supplying and exhausting a high pressure fluid to a cylinder ( 39 ) formed in said rotor ( 31 ) and second passages ( 102 , 103 ) for supplying and exhausting a low pressure fluid from said cylinder ( 39 ) to a rotor chamber ( 14 ) are formed in a fixed shaft ( 65 ), that a conversion mechanism ( 64 ) which is rotated integrally with said rotor ( 31 ) to selectively communicate said first passages ( 94 , 95 ) or said second passages ( 102 , 103 ) to the cylinder ( 39 ) is fitted rotatably and in a sealing condition relative to said fixed shaft ( 65 ), and that port grooves ( 124 , 125 ) surrounding outer peripheries of said first passages ( 94 , 95 ) are formed on a slide surface between the fixed shaft ( 65 ) and the conversion mechanism ( 64 ).

Claim 21

A rotary type fluid machine according to claim 13 , wherein said port grooves ( 124 , 125 ) are in communication with said second passages ( 102 , 103 ).