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Patent Searching and Data

Document Type and Number:
WIPO Patent Application WO/2018/164011
Kind Code:
The cryopump 10 is provided with: a freezer 16 comprising a room-temperature part, a first cooling stage, and a second cooling stage; and a cryopump housing 70 comprising a radiation shield thermally coupled to the first cooling stage and surrounding the second cooling stage without making contact with the second cooling stage, a shield housing part 74 which has an intake port 12 and a housing bottom surface 70a disposed on the opposite side from the intake port 12 and which surrounds the radiation shield without making contact with the radiation shield, and a freezer housing part 76 which connects the shield housing part 74 to the room-temperature part 26 of the freezer 16. A first heater 84 disposed on an outer surface of the freezer housing part 76, or a second heater disposed on the housing bottom surface 70a, or a heat transfer member thermally coupled to the first cooling stage and disposed in a gap between the freezer housing part 76 and the freezer 16 is provided so as to apply heat into the cryopump housing 70 from the outside.

SHIMOMURA Makoto (LTD. Tanashi Works 1-1, Yato-cho 2-chom, Nishitokyo-shi Tokyo 85, 〒1888585, JP)
Application Number:
Publication Date:
September 13, 2018
Filing Date:
March 02, 2018
Export Citation:
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SUMITOMO HEAVY INDUSTRIES, LTD. (1-1 Osaki 2-chome, Shinagawa-ku Tokyo, 25, 〒1416025, JP)
International Classes:
F04B37/08; F04B37/16
Foreign References:
Attorney, Agent or Firm:
MORISHITA Sakaki (2-11-12, Ebisu-Nishi Shibuya-ku Tokyo, 21, 〒1500021, JP)
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