Title:
Unloader pilot valve
Document Type and Number:
Japanese Patent JP6114167
Kind Code:
B2
Abstract:
A pressure-regulating valve includes a body and a valve member. The valve member divides an inner side of the body into a pressure regulation chamber and an atmospheric pressure chamber, which is in communication with the atmosphere. The valve member is configured so that pressure of the pressure regulation chamber moves the valve member in a direction that changes a volume of the pressure regulation chamber. The pressure-regulating valve includes a cap that covers a portion of the body where the atmospheric pressure chamber is in communication with the atmosphere and a communication portion having a labyrinth structure and located between an inner surface of the cap and an outer surface of the body opposing the inner surface. The atmospheric pressure chamber is in communication with the atmosphere through the communication portion.
Inventors:
Hideyuki Fukuda
Application Number:
JP2013246595A
Publication Date:
April 12, 2017
Filing Date:
November 28, 2013
Export Citation:
Assignee:
Aisan Industry Co., Ltd.
TOYOTA JIDOSHA KABUSHIKI KAISHA
TOYOTA JIDOSHA KABUSHIKI KAISHA
International Classes:
G05D16/10; F16K17/30
Domestic Patent References:
| JP2006318339A | ||||
| JP201293809A | ||||
| JP2008282192A |
Attorney, Agent or Firm:
Makoto Onda
Hironobu Onda
Hironobu Onda