Title:
CHECK VALVE
Document Type and Number:
Japanese Patent JP2019190546
Kind Code:
A
Abstract:
To provide a check valve which can suppress the leakage of fluid at valve-closing.SOLUTION: A valve main body 700 is formed into a cylindrical shape by winding a single plate material so that a longitudinal direction progresses along a peripheral direction, and arranged so that an external peripheral wall 705 can abut on a bottom face 550. The valve main body 700 is arranged so that a valve external end part 701 being one end part in the peripheral direction is located outside a radial direction of a region at a valve internal end part 702 being the other end part in the peripheral direction, and overlapped on the region at the valve internal end part 702 in the peripheral direction. The valve main body 700 has a constant plate thickness part 750 which is formed so as to be constant in a plate thickness within a range from the valve internal end part 702 up to the vicinity of the valve external end part 701, and a thin-plate heavy thickness part 760 which is formed so that a plate thickness becomes thinner than a plate thickness of the constant plate thickness part 750 between the constant plate thickness part 750 and the valve external end part 701.SELECTED DRAWING: Figure 7
Inventors:
MICHITANI TETSURO
Application Number:
JP2018082916A
Publication Date:
October 31, 2019
Filing Date:
April 24, 2018
Export Citation:
Assignee:
DENSO CORP
International Classes:
F16K15/16
Attorney, Agent or Firm:
Masaki Hattori