摘要:
A housing 25 of a stepping motor 1 consists of a pair of case sections 27 arranged in front and rear in the direction of an axial line L of a rotating shaft 3. The case sections 27 are formed of: an end plate 27a to which a bearing 31 for supporting the rotating shaft 3 is fixed, and a base plate 27b and a top plate 27c extending from the end plate 27a in the direction of axial line L of the rotating shaft 3. The case sections 27 are formed by bending a single plate material.
摘要:
An expansion tank device 14 comprises a tank installation base 16 having a cooling liquid channel 17 and an expansion tank 18 provided on the upper surface of the installation base 16. The base 16 has a communication hole 19 for holding space above the upper surface thereof in communication with the cooling liquid channel 17. The expansion tank 18 has a tank main body 21 including an upwardly bulging portion 22 having an opening at its lower end, and a bottom plate 23 joined to the lower end of the tank main body 21 for closing the lower-end opening of the bulging portion 22 and joined to the upper surface of the tank installation base 16. The bottom plate 23 is provided at a portion thereof corresponding to the communication hole 19 with a through hole 25 communicating with the communication hole 19. The bottom plate 23 is provided with a baffle plate 26 formed along the entire circumference of the inner peripheral edge thereof defining the through hole 25 and slanting upwardly toward the center of the through hole 25. The expansion tank device 14 removes the air in the cooling liquid from the circulating system, precludes the system from breaking and prevents the decrease in the amount of cooling liquid within the circulating system.
摘要:
An expansion tank device 14 comprises a tank installation base 16 having a cooling liquid channel 17 and an expansion tank 18 provided on the upper surface of the installation base 16. The base 16 has a communication hole 19 for holding space above the upper surface thereof in communication with the cooling liquid channel 17. The expansion tank 18 has a tank main body 21 including an upwardly bulging portion 22 having an opening at its lower end, and a bottom plate 23 joined to the lower end of the tank main body 21 for closing the lower-end opening of the bulging portion 22 and joined to the upper surface of the tank installation base 16. The bottom plate 23 is provided at a portion thereof corresponding to the communication hole 19 with a through hole 25 communicating with the communication hole 19. The bottom plate 23 is provided with a baffle plate 26 formed along the entire circumference of the inner peripheral edge thereof defining the through hole 25 and slanting upwardly toward the center of the through hole 25. The expansion tank device 14 removes the air in the cooling liquid from the circulating system, precludes the system from breaking and prevents the decrease in the amount of cooling liquid within the circulating system.
摘要:
A fluid passing flat hollow body 2 comprises an upper and a lower flat plate 15, 16 elongated laterally and spaced apart as positioned one above the other, and a channel forming body 17 interposed between and brazed to the two flat plates 15, 16. The channel forming body 17 comprises two straight side bars 18 extending laterally and arranged between the upper and lower flat plates 15, 16 respectively at front and rear opposite side edges thereof, an intermediate bar 19 extending laterally and disposed between and spaced apart from the two side bars 18, two heat transfer area increasing portions 21 each interconnecting the intermediate bar 19 and each of the side bars 18 integrally therewith and positioned at an intermediate portion of the height of the bars, and end bars 22 extending forwardly or rearwardly inward from right ends of the respective side bars 18 integrally therewith and having respective inner ends butting on and brazed to front and rear opposite side faces of a right end of the intermediate bar 19. The intermediate bar 19 has a left end portion cut out therefrom, the two heat transfer area increasing portions 21 have respective right end portions cut out therefrom, and each of the flat plates 15, 16 has holes 13, 14 formed in a right end portion thereof respectively on front and rear opposite sides of the intermediate bar 19. Each of the two flat plates 15, 16 is bent at a left end portion thereof toward the other flat plate, and the bent portions 15a, 16a are lapped over and brazed to each other.
摘要:
A housing 25 of a stepping motor 1 consists of a pair of case sections 27 arranged in front and rear in the direction of an axial line L of a rotating shaft 3. The case sections 27 are formed of: an end plate 27a to which a bearing 31 for supporting the rotating shaft 3 is fixed, and a base plate 27b and a top plate 27c extending from the end plate 27a in the direction of axial line L of the rotating shaft 3. The case sections 27 are formed by bending a single plate material.
摘要:
A fluid passing flat hollow body 2 comprises an upper and a lower flat plate 15, 16 elongated laterally and spaced apart as positioned one above the other, and a channel forming body 17 interposed between and brazed to the two flat plates 15, 16. The channel forming body 17 comprises two straight side bars 18 extending laterally and arranged between the upper and lower flat plates 15, 16 respectively at front and rear opposite side edges thereof, an intermediate bar 19 extending laterally and disposed between and spaced apart from the two side bars 18, two heat transfer area increasing portions 21 each interconnecting the intermediate bar 19 and each of the side bars 18 integrally therewith and positioned at an intermediate portion of the height of the bars, and end bars 22 extending forwardly or rearwardly inward from right ends of the respective side bars 18 integrally therewith and having respective inner ends butting on and brazed to front and rear opposite side faces of a right end of the intermediate bar 19. The intermediate bar 19 has a left end portion cut out therefrom, the two heat transfer area increasing portions 21 have respective right end portions cut out therefrom, and each of the flat plates 15, 16 has holes 13, 14 formed in a right end portion thereof respectively on front and rear opposite sides of the intermediate bar 19. Each of the two flat plates 15, 16 is bent at a left end portion thereof toward the other flat plate, and the bent portions 15a, 16a are lapped over and brazed to each other.