Abstract: A centrifugal pump includes: a rotating blade member including an impeller member and a rotor magnet associated with the impeller member, a main body casing in which the rotating blade member is accommodated, a coil portion that rotates the rotating blade member, wherein the coil portion is located on a periphery of the rotor magnet, and an axial member which is associated with the main body casing, wherein the rotating blade member pivots around the axial member. A clearance, in which the rotor magnet is allowed to move, is provided between the blade member and the rotor magnet.
Abstract: A fluid control valve is connected to a wet gas flow passage in order to control a flow of a wet gas, and includes an introduction passage for introducing the wet gas into the fluid control valve, a filter including mesh for removing foreign matter contained in the wet gas flowing through the introduction passage, a discharge passage that includes a valve port disposed above the introduction passage and discharges the wet gas that has passed through the filter from the fluid control valve through the valve port, and a valve portion that opens and closes the valve port using a valve body. In this fluid control valve, the filter is disposed in a lowermost portion of the introduction passage.
January 26, 2015
Date of Patent:
February 11, 2020
NISSAN MOTOR CO., LTD., KABUSHIKI KAISHA SAGINOMIYA SEISAKUSHO
Abstract: [Problem] The object of the invention is to provide the filter device disposed in the moist fluid passage of the fuel cell system in that, water is not adhered and never remains in the filter and when leaving it under the low temperature after the system stops, blockage by freezing the filter can surely be prevented, and the complex control and the heat source such as heaters for the decompression as conventional is unnecessary, and the filter device is cheap and compact.
Abstract: Provided is a pressure detection unit in which a waterproof property can be improved. In a pressure sensor, a sealing-resin portion is joined to an outside side surface of an element main body made of stainless steel, aluminum, or nickel such that the sealing-resin portion surrounds a plurality of lead pins. In the pressure sensor, a roughened annular surface portion is provided at a region where the sealing-resin portion is joined on an upper end surface of the element main body so as to be disposed in a manner to partition an external peripheral edge and an internal peripheral edge arranged at the outside side surface of an element main body in the sealing-resin portion.
Abstract: An actuator includes: an electrostatic actuation mechanism including a stationary electrode and a movable electrode; a first movable part driven by the electrostatic actuation mechanism; a first elastic support part that elastically supports the first movable part; an electret formed in at least one of the stationary electrode and the movable electrode; and a drive control unit that controls application of voltage to the electrostatic actuation mechanism. In the actuator a plurality of stable states are set in which the first movable part is positioned at a stable position at which an electrostatic force generated by the electret matches with an elastic force exerted by the first elastic support part or at a stable position near such stable position. By applying a voltage to the electrostatic actuation mechanism, the first movable part may be displaced from any stable position to another stable position.
July 30, 2014
Date of Patent:
July 2, 2019
National University Corporation Shizuoka University, OMRON Corporation, KABUSHIKI KAISHA SAGINOMIYA SEISAKUSHO
Abstract: Each of slide duct devices which are attached to actuators (38A and 38B) constituting each vibration device includes a cableveyor (42A) through which a wire/ductwork material group (WH) is inserted, a guide duct (40A), and a slide rail unit (SLU) slidably supporting the guide duct (40A). A swinging base (12) connected to the actuators (38A and 38B) has a wire/ductwork material alignment mechanism (50) enabling alignment of the wire/ductwork material group (WH) passing through the guide duct (40A) without damaging the same.
Abstract: A centrifugal pump includes a rotating blade member including an impeller member and a rotor magnet, a main body casing accommodating the rotating blade member, a coil portion that rotates the rotating blade member is located on a periphery of the rotor magnet, and an axial member associated with the main body casing. The rotating blade member pivots around the axial member. The axial member includes an end portion at axial rotor magnet side, and is fixed at the end portion. The main body casing forms a fluid introducing passage, and is associated with a blade casing accommodating the rotating blade member. An end portion of a bearing portion at an axial fluid introducing passage side is protruded such that the end portion of the bearing portion protrudes from an inner periphery opening portion of the blade casing into the fluid introducing passage.
Abstract: In a method of manufacturing a diaphragm with a contact, contact stocks each forming a movable contact on a stock formed out of a strip-shaped thin metal sheet material, or a rolled material are bonded at predetermined intervals to the stock by resistance welding, for example to form a diaphragm stock with a contact. Next, the stock of a diaphragm with a contact is subjected to continuous blanking with a predetermined diameter from each movable contact as center to produce a diaphragm with a contact.
Abstract: A centrifugal pump includes a main body casing. The main body casing includes an upper main body casing, a lower main body casing fixed to the upper main body casing, and a blade casing. In the blade casing, an interior space S1 formed by the upper main body casing and the lower main body casing is partitioned, and a fluid introducing passage is formed on the upper portion and a rotating accommodating space S2 to accommodate the rotating blade member is formed on lower portion. A joint portion of the upper main body casing, the lower main body casing, and the blade casing is fixed on the state of sealing. A joint portion of the suction side coupling member and the main body casing and a joint portion of the discharge side coupling member and the main body casing 34 are fixed on the state of sealing.
Abstract: In a refrigerant circuit component or valve device, the present invention projection-welds a connector to a cap member and prevents intrusion of spatter into a refrigerant circuit. A-cylinder section in which an inside hole of the connector is open is inserted in an inside hole formed in the center of the cap member. The area between the A-cylinder section and a projection of the connector is used as a spatter generation space. The projection of the connector abuts against the cap member and is projection-welded to form a welded part. The open end of the inside hole of the A-cylinder section is crimped to pressure-join the open end to the open end of the inside hole of the cap member. Spatter is sealed inside the spatter generation space. A portion of the surface layer to which the generated spatter adheres may be removed by machining to provide a spatter-removed structure.
Abstract: A throttle device to decompress a refrigerant and to deliver the refrigerant to an evaporator, may have an opening level of a needle valve controlled following a condensation pressure. Inside a case including a primary chamber connected to the condenser and a secondary chamber connected to the evaporator, a valve seat formed with a port and a guide integral to the valve seat are provided. A spring to energize the needle valve toward the port side is provided inside the guide. The guide guides the needle valve along a line allowing an opening level of the port to be variable. A space between the guide and the case forms a channel to deliver the refrigerant from the port to the secondary chamber. A rear space of the needle valve within the guide forms an intermediate chamber. An intermediate channel introduces the refrigerant from the port into the intermediate chamber.
Abstract: A solenoid valve drive control device includes a switching device that provides and interrupts the application of the electric current to the solenoid, a first device that controls the application of the electric current to the solenoid by the switching device to start the application of the electric current to the solenoid at zero cross timing in a power supply period, and a second device that detects a value of an electric current that flows to the solenoid. The application of the electric current to the solenoid is interrupted when the detected value of the electric current reaches a predetermined value, after the zero cross timing. A holding power is generated by discharging energy accumulated in the solenoid through a snubber circuit until another zero cross timing subsequent to the zero cross timing after the application of the electric current to the solenoid is interrupted.
Abstract: The present invention provides a fluid-related function device capable of suppressing deformation of a connection member and a case part which may adversely be generated by expansion of fluid stored in a space in which spatters at the time of resistance-welding are trapped. A pressure switch includes a space in which spatters generated at the time of projection-welding are trapped. The space is provided between a joint and a cap member. A communication passage brings inside and outside of the space into communication with each other. The communication passages is formed such that it permits fluid to pass through the communication passages and restrains spatters from passing through the communication passages.
Abstract: Provided is a throttle device to decompress a refrigerant cooled by a condenser in a refrigerating cycle and to deliver the refrigerant to an evaporator, where a minimum space between a needle valve and a valve port can be accurately set. Inside a cylindrical main body case including a primary chamber connected to the condenser and a secondary chamber connected to the evaporator, a valve seat member formed with a valve port and a cylindrical guide member integral to the valve seat member are provided. A coil spring to energize the needle valve toward the valve port side is provided inside the guide member. A needle portion of the needle valve protrudes from the valve port toward the primary chamber. A tip portion of the needle portion abuts against a stopper member and the tip portion is thereby positioned.
Abstract: A pressure switch is disclosed. The pressure switch includes a housing and a pressure-receiving chamber that communicates with a duct to which an operating pressure is supplied. The pressure switch also includes a diaphragm assembly with a diaphragm that is displaced in response to a pressure inside the pressure-receiving chamber. The pressure switch also includes a movable contact that comes into contact with a fixed contact accommodated in a center portion of an inside of the housing when the pressure inside the pressure-receiving chamber is above a certain value. One of the movable contact and the fixed contact has radially diverging contact faces that are arranged such that contact between the fixed contact and the moveable contact can be established with at least two of the radially diverging contact faces at the same time.
Abstract: A pressure sensor includes: a fixed part; a ring-like oscillator that is supported on the fixed part by a plurality of support beams; a plurality of electrodes that are provided on the fixed part and arranged in an oscillating direction of the ring-like oscillator with a gap; electret films that are formed on either one of opposite surfaces of the ring-like oscillator and the electrodes.
September 29, 2014
Date of Patent:
March 13, 2018
The University of Tokyo, Kabushiki Kaisha Saginomiya Seisakusho
Hiroyuki Fujita, Gen Hashiguchi, Hiroyuki Mitsuya, Hisayuki Ashizawa
Abstract: The present invention provides a swaging structure having a high pressure resistance strength suitable for a high pressure switch that solves the conventional disadvantages that the swaging for providing an increased thickness causes a manufacturing facility having a larger size or the swaged part having winkles or that a pressure switch finds a difficulty in the adjustment of the swaging margin when the number of diaphragms is changed for example. A swaging structure comprises at least a to-be-swaged member required to have airtightness to a surrounding environment and a swaging member configured to retain the to-be-swaged member by a swaging processing, the swaging member has an annular side wall surrounding the to-be-swaged member to retain the to-be-swaged member after the swaging processing and the swaging structure further includes an annular spacer including therein a penetration hole to be sandwiched between the to-be-swaged member and the annular side wall after the swaging processing.
Abstract: A swaging structure for which swaging process is easy, generation of wrinkles can be prevented, and which has high pressure-resistant performance is provided. In a swaging structure including at least a to-be-swaged member required to have airtightness to a surrounding environment and a swaging member constituted to retain the to-be-swaged member by a swaging processing, the swaging member has an annular side wall surrounding the to-be-swaged member, and a groove is formed in the annular side wall.
Abstract: There is provided an expansion valve which, by moving the sub-valve in a valve housing, controls the flow rate of a refrigerant in a first flow direction and releases the refrigerant to flow in a second flow direction, wherein the sub-valve is reduced in weight and a valve port is provided with high accuracy. The sub-valve includes a guide member formed by press work and a valve seat member formed by cutting. The sub-valve is seated on a sub-valve seat of a valve seat ring when the pressure in a main valve chamber is high, and is moved away from the sub-valve seat when the pressure in the main valve chamber is low. The sub-valve is reduced in weight by forming the guide member by press work, and the valve port is formed with improved accuracy by forming the valve seat member by cutting.