Title:
LIQUID FILTER
Document Type and Number:
Japanese Patent JP3853092
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To prevent leaking of oil when a cap is removed, by quickly discharging the oil in the cap to be associated with loosening work of a center bolt when an element is replaced.
SOLUTION: An female thread part 12a is formed in the lower part center of a case 12, the female thread part 12a communicates with a drain hole 12d. An element 13 received in the case partitions inside the case so as to communicate an inlet side chamber 12e of the case with an oil inflow passage 12b and to communicate an outlet side chamber 12f with a first oil discharge passage 12c. An opened upper part of the case 12 is closed by a cap 14, a center bolt 16 is inserted from the center of the cap 14 into the element 13. A male thread part 16c, which can be screwed to the female thread part 12a, is formed in a lower part of a shaft part 16a of the center bolt, a slit 16d is formed in a lower part of the male thread part. A clearance for air capable of infiltrating in the case 12 is formed between a head part of the center bolt 16 and the cap 14 when the center bolt 16 is loosened, the outlet side chamber 12f communicates with the drain hole through the slit 16d.
Inventors:
Takahiro Sano
Application Number:
JP28578498A
Publication Date:
December 06, 2006
Filing Date:
October 08, 1998
Export Citation:
Assignee:
Hino Motors Ltd.
International Classes:
B01D29/11; F01M11/03; B01D35/02; B01D35/147; (IPC1-7): F01M11/03; B01D29/11; B01D35/02; B01D35/147
Domestic Patent References:
| JP57111309U |
Attorney, Agent or Firm:
Masayoshi Suda
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