Title:
FLUID INJECTING DEVICE, AND FLUID INJECTING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2020/195624
Kind Code:
A1
Abstract:
A fluid injecting device (10) is provided with a valve body (20), and a valve needle (30). The valve body includes a first valve seat (27a) and a second valve seat (27b). The valve needle includes a first valve portion (35a) and a second valve portion (35b). The first valve portion and the second valve portion are displaced integrally in conjunction with displacement of the valve needle. The first valve portion separates from and seats on the first valve seat. The second valve portion separates from and seats on the second valve seat. There is provided a pressure regulating portion (40) which increases the pressure of a first fluid in conjunction with a rise in the pressure of a second fluid when the valve needle is in a closed state, where the closed state of the valve needle is defined as a state in which the first valve portion is seated on the first valve seat and the second valve portion is seated on the second valve seat.
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Inventors:
MATSUMOTO SHUICHI (JP)
Application Number:
PCT/JP2020/009031
Publication Date:
October 01, 2020
Filing Date:
March 04, 2020
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
F02B43/00; F02M21/02; F02M43/04; F02M45/08; F02M47/00; F02M51/06; F02M61/04; F02M61/10; F02M67/14
Foreign References:
| DE102015015518A1 | 2017-06-14 | |||
| JPS6123862A | 1986-02-01 | |||
| JPH02286866A | 1990-11-27 | |||
| US20100199948A1 | 2010-08-12 | |||
| JPH0216358A | 1990-01-19 | |||
| JPH05272422A | 1993-10-19 |
Attorney, Agent or Firm:
KAMATA, Toru et al. (JP)
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