Linear motor
First Claim
Patent Images
1. A linear motor comprising:
- two relatively movable members;
a coil mounted to one of said two members;
a magnet mounted to the other of said two members;
a tube surrounding said coil;
a supply system that supplies fluid into said tube;
a pressure detecting device that detects pressure of said fluid; and
a control system that controls said supply system based on an output of said pressure detecting device to regulate the pressure of said fluid in said tube so as to inhibit deformation of said tube by said fluid.
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Abstract
A linear motor has two relatively members moveable a coil mounted to one of the two members, a magnet mounted to the other of the two members, a circulating pump for circulating a cooling medium via a circulating pipe in an outer tube surrounding the coil, a pressure detecting device for detecting the pressure of the cooling medium, and a control system for controlling the operation of the circulating pump based on the detected pressure value from the pressure detecting device.
36 Citations
101 Claims
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1. A linear motor comprising:
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two relatively movable members; a coil mounted to one of said two members; a magnet mounted to the other of said two members; a tube surrounding said coil; a supply system that supplies fluid into said tube; a pressure detecting device that detects pressure of said fluid; and a control system that controls said supply system based on an output of said pressure detecting device to regulate the pressure of said fluid in said tube so as to inhibit deformation of said tube by said fluid. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An exposure apparatus comprising:
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a stage having two relatively movable members, said stage for carrying a mask or a photosensitive substrate thereon; a coil mounted to one of said two members; a magnet mounted to the other of said two members; a tube surrounding said coil; a supply system that supplies fluid into said tube; a pressure detecting device that detects pressure of said fluid; and a control system that controls said supply system based on an output of said pressure detecting device to regulate the pressure of said fluid in said tube so as to inhibit deformation of said tube by said fluid.
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9. A method of cooling a linear motor comprising the steps of:
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supplying fluid into a tube surrounding a coil of said linear motor; measuring pressure of said fluid; and regulating the pressure of said fluid in said tube based on the measured pressure of said fluid so as to inhibit deformation of said tube by said fluid. - View Dependent Claims (10, 11)
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12. A linear motor comprising:
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two relatively movable members; a coil mounted to one of said two members; a magnet mounted to the other of said two members; a tube surrounding said coil; a supply system that supplies fluid into said tube; a detecting device that detects a parameter indicative of pressure of said fluid; and a control system that controls said supply system based on an output of said detecting device so as to inhibit deformation of said tube by pressure of said fluid. - View Dependent Claims (13, 14, 15)
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16. A method of cooling a linear motor comprising the steps of:
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supplying fluid into a tube surrounding a coil of said linear motor; detecting a parameter indicative of pressure of said fluid; and regulating the supply of fluid to said tube based on the detected parameter so as to inhibit deformation of said tube by pressure of said fluid. - View Dependent Claims (17)
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18. A linear motor comprising:
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two relatively movable members; a coil mounted to one of said two members; a magnet mounted to the other of said two members; a tube surrounding said coil; a supply system that supplies fluid into said tube; and a detecting device that detects a parameter indicative a detecting device that detects a parameter indicative of pressure of said fluid in said tube. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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30. A linear motor comprising:
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two relatively moveable members; a coil mounted to one of said two members; a magnet mounted to the other of said two members; a tube surrounding said coil; a supply system that supplies fluid into said tube; and a controller that is connected to said supply system, and that adjusts pressure of said fluid in said tube. - View Dependent Claims (31, 32, 33, 34)
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35. A linear motor comprising:
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a coil; a tube surrounding said coil; a member that is opposed to said tube at a predetermined distance, and that is movable relative to said tube; a supply system that supplies fluid into said tube; and a detecting device that detects a parameter indicative of a deformation state of said tube. - View Dependent Claims (36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47)
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48. A linear motor comprising:
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a coil; a tube surrounding said coil; a supply system that supplies fluid into said tube; and a detecting device that detects a parameter indicative of pressure of said fluid in said tube. - View Dependent Claims (49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59)
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60. An operation method of a linear motor comprising the steps of:
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supplying fluid into a tube surrounding a coil mounted to one of two relatively moveable members of said linear motor, a magnet being mounted to the other of said two members; and detecting a parameter indicative of pressure of fluid in said tube. - View Dependent Claims (61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71)
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72. An operation method of a linear motor comprising the steps of:
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supplying fluid into a tube surrounding a coil mounted to one of two relatively moveable members of said linear motor, a magnet being mounted to the other of said two members; and adjusting the pressure of said fluid in said tube with a controller that is connected to said supply system. - View Dependent Claims (73, 74, 75, 76)
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77. An operation method of a linear motor comprising:
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supplying fluid into a tube surrounding a coil of said linear motor, said tube being opposed at a predetermined distance to a member of said linear motor that is moveable relative to said tube; and detecting a parameter indicative of a deformation state of said tube. - View Dependent Claims (78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89)
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90. An operation method of a linear motor comprising:
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supplying fluid into a tube surrounding a coil of said linear motor; and detecting a parameter indicative of pressure of said fluid in said tube. - View Dependent Claims (91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101)
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Specification