1. An elastomeric vibrationshock isolator (VSI) comprising:
a substrate; and
an array of integral pillars protruding from one side of the substrate;
the pillars having exposed ends;
the pillars having configurations which are regular polygons or ellipses as viewed from the exposed ends of the pillars; and
there being recesses in the pillars, the recesses opening onto the exposed ends of the pillars in which they are located.
2. A VSI as defined in claim 1 in which the pillars are tuned to offer a selected pattern of progressive resistance to deformation of the pillars caused by the imposition of shock and vibration on the VSI.
3. A VSI as defined in claim 2 wherein each pillar touches at least one other pillar.
4. A VSI as defined in claim 1 which is so shaped as to enable it to function as a cushion or pad.
5. A VSI as defined in claim 1 which has pillars protruding from both first and second opposite sides of the substrate.
6. A VSI as defined in claim 1 wherein the regular polygon is a circle, triangle, square, pentagon, or hexagon.
7. A VSI as defined in claim 1 which has blind end, air-trapping recesses in the pillars.
8. A VSI as defined in claim 1 wherein at least one recess extends from the pillar in which it is formed completely through the substrate of the VSI.
9. The combination of:
a device comprising a handle; and
a VSI as defined in claim 1 wrapped around the handle to isolate one using the device from shock and vibration.
10. A combination as defined in claim 9 wherein the pillars and the elastomer from which the VSI is made promote the tenacity with which a user can grasp the handle
11. A combination as defined in claim 9 wherein the pillars are distortable under load to match the contours of a user’s hand(s).
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A scroll type fluid machine comprising:
a fixed-side member including a casing and a fixed scroll provided in the casing, the fixed scroll being formed by an end plate and a spiral wrap portion extending from a front surface of the end plate;
an electric motor provided in the casing;
a rotary shaft supported by the casing and adapted to be rotatably driven by the electric motor; and
an orbiting scroll connected to the rotary shaft at a position where the orbiting scroll faces the fixed scroll, the orbiting scroll being formed by an end plate and a wrap portion extending from a front surface of the end plate, the wrap portion of the orbiting scroll overlapping the wrap portion of the fixed scroll, to thereby form a plurality of compression chambers,
the rotary shaft being provided with a cooling fan accommodated in the fixed-side member, the cooling fan being adapted to rotate with the rotary shaft at a position where the cooling fan faces the orbiting scroll,
the fixed-side member being provided with a flow inlet opening for sucking cooling air along a reverse side of the orbiting scroll end plate during rotation of the cooling fan, a flow outlet opening for allowing the cooling air sucked from the flow inlet opening to be discharged from the fixed-side member by operation of the cooling fan, and a scroll duct for guiding the cooling air discharged from the flow outlet opening towards a reverse side of the fixed scroll end plate.
2. A scroll type fluid machine comprising:
a fixed-side member including a casing and a fixed scroll provided in the casing, the fixed scroll being formed by an end plate and a spiral wrap portion extending from a front surface of the end plate;
an electric motor provided in the casing;
a rotary shaft supported by the casing and adapted to be rotatably driven by the electric motor; and
an orbiting scroll connected to the rotary shaft at a position where the orbiting scroll faces the fixed scroll, the orbiting scroll being formed by an end plate and a wrap portion extending from a front surface of the end plate, the wrap portion of the orbiting scroll overlapping the wrap portion of the fixed scroll, to thereby form a plurality of compression chambers,
the rotary shaft being provided with a cooling fan accommodated in the fixed-side member, the cooling fan being adapted to rotate with the rotary shaft at a position where the cooling fan faces the orbiting scroll,
the fixed-side member being provided with a flow inlet opening for sucking cooling air into the casing during rotation of the cooling fan, a flow outlet opening for allowing the cooling air sucked from the flow inlet opening to be discharged from the fixed-side member by operation of the cooling fan, a scroll duct for guiding the cooling air discharged from the flow outlet opening towards a reverse side of the fixed scroll end plate, and an air passage opening for allowing part of the cooling air flowing through the scroll duct to flow into a space formed on a reverse side of the orbiting scroll end plate.
3. A scroll type fluid machine comprising:
a fixed-side member including a casing and first and second fixed scrolls provided on opposite sides of the casing, each of the first and second fixed scrolls being formed by an end plate and a spiral wrap portion extending from a front surface of the end plate;
an electric motor provided in the casing between the first fixed scroll and the second fixed scroll;
a rotary shaft supported by the casing and adapted to be rotatably driven by the electric motor; and
first and second orbiting scrolls connected to the rotary shaft at a position where the first and second orbiting scrolls face the first and second fixed scrolls, respectively, each of the first and second orbiting scrolls being formed by an end plate and a wrap portion extending from a front surface of the end plate, the wrap portion of the first orbiting scroll overlapping the wrap portion of the first fixed scroll, thereby forming a plurality of compression chambers, the wrap portion of the second orbiting scroll overlapping the wrap portion of the second fixed scroll, thereby forming a plurality of compression chambers,
the rotary shaft being provided with first and second cooling fans accommodated in the fixed-side member on axially opposite sides of the rotary shaft, the first and second cooling fans being adapted to rotate with the rotary shaft at a position where the cooling fans face the first and second orbiting scrolls, respectively, and
the fixed-side member being provided with flow inlet openings for sucking cooling air along reverse sides of the end plates of the first and second orbiting scrolls during rotation of the first and second cooling fans, flow outlet openings for allowing the cooling air sucked from the flow inlet openings to be discharged from the fixed-side member by operation of the first and second cooling fans, and scroll ducts for guiding the cooling air discharged from the flow outlet openings towards reverse sides of the end plates of the first and second fixed scrolls.
4. A scroll type fluid machine comprising:
a fixed-side member including a casing and first and second fixed scrolls provided on opposite sides of the casing, each of the first and second fixed scrolls being formed by an end plate and a spiral wrap portion extending from a front surface of the end plate;
an electric motor provided in the casing between the first fixed scroll and the second fixed scroll;
a rotary shaft supported by the casing and adapted to be rotatably driven by the electric motor; and
first and second orbiting scrolls connected to the rotary shaft at a position where the first and second orbiting scrolls face the first and second fixed scrolls, respectively, each of the first and second orbiting scrolls being formed by an end plate and a wrap portion extending from a front surface of the end plate, the wrap portion of the first orbiting scroll overlapping the wrap portion of the first fixed scroll, thereby forming a plurality of compression chambers, the wrap portion of the second orbiting scroll overlapping the wrap portion of the second fixed scroll, thereby forming a plurality of compression chambers,
the rotary shaft being provided with first and second cooling fans accommodated in the fixed-side member on axially opposite sides of the rotary shaft, the first and second cooling fans being adapted to rotate with the rotary shaft, at a position where the first and second cooling fans face the first and second orbiting scrolls, respectively,
the fixed-side member being provided with a first flow inlet opening for sucking cooling air along a reverse side of the end plate of the first orbiting scroll during rotation of the first cooling fan, a first flow outlet opening for allowing the cooling air sucked from the first flow inlet opening to be discharged from the fixed-side member by operation of the first cooling fan, and a first scroll duct for guiding the cooling air discharged from the first flow outlet opening towards a reverse side of the end plate of the first fixed scroll,
the fixed-side member being further provided with a second flow inlet opening for sucking cooling air into the casing during rotation of the second cooling fan, a second flow outlet opening for allowing the cooling air sucked from the second flow inlet opening to be discharged from the fixed-side member by operation of the second cooling fan, a second scroll duct for guiding the cooling air discharged from the second flow outlet opening towards a reverse side of the end plate of the second fixed scroll, and an air passage opening for allowing part of the cooling air flowing through the second scroll duct to flow into a space formed on a reverse side of the end plate of the second orbiting scroll.
5. A scroll type fluid machine according to claim 1, wherein:
a partition plate is provided in the fixed-side member so as to provide a partition between the orbiting scroll and the cooling fan;
the flow inlet opening is disposed on a side of the orbiting scroll relative to the partition plate; and
the flow outlet opening is disposed on a side opposite to the flow inlet opening relative to the partition plate.
6. A scroll type fluid machine according to claim 2, wherein:
two partition plates, one of which provides a partition between the electric motor and the cooling fan and the other of which provides a partition between the cooling fan and the orbiting scroll, are provided in the fixed-side member;
the flow inlet opening is disposed on a side of the electric motor relative to said one partition plate;
the flow outlet opening is disposed between said one partition plate and said other partition plate; and
the air passage opening is disposed on a side of the orbiting scroll relative to said other partition plate.
7. A scroll type fluid machine according to claim 1, wherein:
a cooling device is provided outside the fixed-side member, the cooling device being adapted to cool a gas sucked into the compression chambers or a gas discharged from the compression chambers;
the flow outlet opening is formed at each of two positions in the fixed-side member which are different from a position of the flow inlet opening; and
the flow outlet opening formed at one of the two positions is connected to the scroll duct, and the flow outlet opening formed at the other position is connected to a cooling device duct for guiding cooling air into the cooling device.
8. A scroll type fluid machine according to claim 1, wherein:
the flow inlet opening and the flow outlet opening are formed at different positions;
a plurality of orbiting-side cooling fins are formed on the reverse side of the orbiting scroll end plate so as to extend in a direction of flow of cooling air flowing from the flow inlet opening; and
a plurality of fixed-side cooling fins are formed on the reverse side of the fixed scroll end plate so as to extend in a direction of flow of cooling air guided from the flow outlet opening through the scroll duct.
9. A scroll type fluid machine according to claim 3, wherein:
a partition plate is provided in the fixed-side member so as to provide a partition between the orbiting scroll and the cooling fan;
the flow inlet opening is disposed on a side of the orbiting scroll relative to the partition plate; and
the flow outlet opening is disposed on a side opposite to the flow inlet opening relative to the partition plate.
10. A scroll type fluid machine according to claim 4, wherein:
two partition plates, one of which provides a partition between the electric motor and the cooling fan and the other of which provides a partition between the cooling fan and the orbiting scroll, are provided in the fixed-side member;
the flow inlet opening is disposed on a side of the electric motor relative to said one partition plate;
the flow outlet opening is disposed between said one partition plate and said other partition plate; and
the air passage opening is disposed on a side of the orbiting scroll relative to said other partition plate.
11. A scroll type fluid machine according to claim 2, wherein:
a cooling device is provided outside the fixed-side member, the cooling device being adapted to cool a gas sucked into the compression chambers or a gas discharged from the compression chambers;
the flow outlet opening is formed at each of two positions in the fixed-side member which are different from a position of the flow inlet opening; and
the flow outlet opening formed at one of the two positions is connected to the scroll duct, and the flow outlet opening formed at the other position is connected to a cooling device duct for guiding cooling air into the cooling device.
12. A scroll type fluid machine according to claim 3, wherein:
a cooling device is provided outside the fixed-side member, the cooling device being adapted to cool a gas sucked into the compression chambers or a gas discharged from the compression chambers;
the flow outlet opening is formed at each of two positions in the fixed-side member which are different from a position of the flow inlet opening; and
the flow outlet opening formed at one of the two positions is connected to the scroll duct, and the flow outlet opening formed at the other position is connected to a cooling device duct for guiding cooling air into the cooling device.
13. A scroll type fluid machine according to claim 4, wherein:
a cooling device is provided outside the fixed-side member, the cooling device being adapted to cool a gas sucked into the compression chambers or a gas discharged from the compression chambers;
the flow outlet opening is formed at each of two positions in the fixed-side member which are different from a position of the flow inlet opening; and
the flow outlet opening formed at one of the two positions is connected to the scroll duct, and the flow outlet opening formed at the other position is connected to a cooling device duct for guiding cooling air into the cooling device.
14. A scroll type fluid machine according to claim 2, wherein:
the flow inlet opening and the flow outlet opening are formed at different positions;
a plurality of orbiting-side cooling fins are formed on the reverse side of the orbiting scroll end plate so as to extend in a direction of flow of cooling air flowing from the flow inlet opening; and
a plurality of fixed-side cooling fins are formed on the reverse side of the fixed scroll end plate so as to extend in a direction of flow of cooling air guided from the flow outlet opening through the scroll duct.
15. A scroll type fluid machine according to claim 3, wherein:
the flow inlet opening and the flow outlet opening are formed at different positions;
a plurality of orbiting-side cooling fins are formed on the reverse side of the orbiting scroll end plate so as to extend in a direction of flow of cooling air flowing from the flow inlet opening; and
a plurality of fixed-side cooling fins are formed on the reverse side of the fixed scroll end plate so as to extend in a direction of flow of cooling air guided from the flow outlet opening through the scroll duct.
16. A scroll type fluid machine according to claim 4, wherein:
the flow inlet opening and the flow outlet opening are formed at different positions;
a plurality of orbiting-side cooling fins are formed on the reverse side of the orbiting scroll end plate so as to extend in a direction of flow of cooling air flowing from the flow inlet opening; and
a plurality of fixed-side cooling fins are formed on the reverse side of the fixed scroll end plate so as to extend in a direction of flow of cooling air guided from the flow outlet opening through the scroll duct.