Abstract: A solenoid valve appropriately used for pressure control of various fluids, or the like is concerned, and a solenoid valve is provided, which achieves improvement in sliding property of a plunger and is excellent in control characteristics. More specifically, a plunger 1 is substantially cylindrical-shaped and slidably supported at its outer peripheral side by a sleeve, the plunger being provided with a large-diameter portion 1a, which constitutes a sliding portion, the large-diameter portion 1a being alternately provided with a plurality of convex surface portions 1d and a plurality of groove portions 1e and having a cross sectional shape like petals.

Abstract: A substantially cylindrical annular space is formed by an outer circumferential surface of a cylindrical portion and a substantially flat surface portion of a substantially bottomed cylindrical sleeve, an inner circumferential surface of a case member, and a substantially flat surface portion of a bracket plate, a seal member being provided in this annular space. Thus, the simplification of the construction, and the miniaturization and the reduction of the weight is realized while a sealing performance between the inside and outside of the main body is maintained.

Abstract: A sputter target material which is of a sintered material, wherein the sputter target material consists of 0.5 to 50 atomic % in total of at least one metal element (M) selected from the group of Ti, Zr, V, Nb and Cr, and the balance of Mo and unavoidable impurities, and has a microstructure seen at a perpendicular cross section to a sputtering surface, in which microstructure oxide particles exist near a boundary of each island of the metal element (M), and wherein the maximum area of the island, which is defined by connecting the oxide particles with linear lines so as to form a closed zone, is not more than 1.0 mm2.

Abstract: Disclosed is a method of producing a target material of a Mo alloy, which includes the steps of (a) preparing a green compact by compressing a raw material powder blend consisting of a Mo powder having an average particle size of not more than 20 ?m and a transition metal powder having an average particle size of not more than 500 ?m; (b) pulverizing the green compact to produce a secondary powder having an average particle size of from not less than an average particle size of the raw material powder blend to not more than 10 mm; (c) filling the secondary powder into a container for pressurizing; and (d) subjecting the secondary powder with the container for pressurizing to sintering under pressure thereby obtaining a sintered body of the target material.

Abstract: A solenoid improvement has been achieved in terms of abrasion resistance. A fluid accumulating chamber Q is formed substantially coaxially with a plunger chamber P and on the opposite side of a center post 4 through the intermediation of the plunger chamber P. On the outer peripheral side of the rod 6, there is provided a first bearing 7 for separating the plunger chamber P and the fluid accumulating chamber Q from each other.

Abstract: A capacity control valve is inserted in a flow path connecting a discharge chamber and a crank chamber of a variable capacity compressor and provided with a valve unit and a drive unit. The valve unit has a valve element for opening/closing the flow path or a valve passage of the valve unit. The drive unit has a movable core or plunger for driving the valve element and a communicating path that is formed in the plunger and connects chambers located in both sides of the plunger.

Abstract: An object of the present invention is to improve an anti-abrasive property of an operating rod by using a surface hardening heat treatment without a post finishing process and to enhance a response of the operating rod by preventing powders from being attracted to a sliding surface of the operating rod. Another object is to decrease a machining cost of the operating rod. The capacitive control valve is comprised of a solenoid rod portion communicating with a moveable core of the solenoid portion, an operating rod connected with the solenoid rod portion, a valve body defined in the operating rod and opening or closing a control fluid passage hole and a fixed core oppositely arranged relative to the moveable core, the fixed core retaining a guide hole, the guide hole guiding the operating rod in freely moveable a manner which longitudinally extends through an internal bore wherein the operating rod is processed at no more than 500° C. by a low temperature surface hardening treatment.

Abstract: A casing member is provided at one end thereof with a bent portion, and when a connector member is inserted from an opening on the other end side of the casing member, the connector member is positioned by the bent portion. Workability in assembling is improved and a burden on various solenoid constituents at the time of assembling can be decreased by sequentially inserting all the various solenoid constituents from the opening on the other end side of the casing member after insertion of the connector member, mounting a valve section after a bracket plate is mounted, and performing caulking with projections for caulking, which are provided on an end of a valve sleeve.

Abstract: A capacity control valve that implements an accurate pressure control of a valve body by preventing unwanted pressures from influencing on the valve body and that alters the function of a control chamber such that the pressure within the control chamber to which a control pressure is supplied can quickly be modulated. In the capacity control valve, a valve opening joint portion which is integral with a valve body can rapidly be disengaged from an engagement portion which is integral with a pressure sensing device, hence a quick lifting of the valve body so as to modulate the capacity or pressure in the control chamber.

Abstract: A casing member is provided at one end thereof with a bent portion, and when a connector member is inserted from an opening on the other end side of the casing member, the connector member is positioned by the bent portion. Workability in assembling is improved and a burden on various solenoid constituents at the time of assembling can be decreased by sequentially inserting all the various solenoid constituents from the opening on the other end side of the casing member after insertion of the connector member, mounting a valve section after a bracket plate is mounted, and performing caulking with projections for caulking, which are provided on an end of a valve sleeve.

Abstract: An object of the capacity control valve is to provide a constant, stable control of the pressure load without fluctuations. Also another object is to improve an energy efficiency of the drive torque of the rotary shaft by means of a control of the pressure load. In this arrangement, the solenoid coil section controls as a reference value of pressure load which is calculated by taking a sum of a pressure differential between the discharge pressure and the pressure in the control chamber, multiplied by the area of the open passage of the first valve seat, and a pressure differential between the pressure in the control chamber and the suction pressure, multiplied by the area of the open passage of the second valve seat.

Abstract: A substantially cylindrical annular space is formed by an outer circumferential surface of a cylindrical portion 4a and a substantially flat surface portion 4b of a substantially bottomed cylindrical sleeve 4, an inner circumferential surface of a case member 9, and a substantially flat surface portion 12a of a bracket plate 12, a seal member 10 being provided in this annular space. Thus, the simplification of the construction, and the miniaturization and the reduction of the weight is realized while a sealing performance between the inside and outside of the main body is maintained.

Abstract: A solenoid valve appropriately used for pressure control of various fluids, or the like is concerned, and a solenoid valve is provided, which achieves improvement in sliding property of a plunger and is excellent in control characteristics. More specifically, a plunger 1 is substantially cylindrical-shaped and slidably supported at its outer peripheral side by a sleeve, the plunger being provided with a large-diameter portion 1a, which constitutes a sliding portion, the large-diameter portion 1a being alternately provided with a plurality of convex surface portions 1d and a plurality of groove portions 1e and having a cross sectional shape like petals.

Abstract: A capacity control valve that implements an accurate pressure control of a valve body by preventing unwanted pressures from influencing on the valve body and that alters the function of a control chamber such that the pressure within the control chamber to which a control pressure is supplied can quickly be modulated. In the capacity control valve, a valve opening joint portion which is integral with a valve body can rapidly be disengaged from an engagement portion which is integral with a pressure sensing device, hence a quick lifting of the valve body so as to modulate the capacity or pressure in the control chamber.

Abstract: Disclosed is a solenoid of superior quality in which an improvement has been achieved in terms of abrasion resistance. A fluid accumulating chamber Q is formed substantially coaxially with a plunger chamber P and on the opposite side of a center post 4 through the intermediation of the plunger chamber P. On the outer peripheral side of the rod 6, there is provided a first bearing for separating the plunger chamber P and the fluid accumulating chamber Q from each other.

Abstract: A control valve used in a variable displacement compressor includes a valve chamber, a valve body and a pressure sensing chamber. A pressure sensing ball is movably located in the pressure sensing chamber and divides the pressure sensing chamber into a first pressure chamber and a second pressure chamber. First and second pressure monitoring points are located in a refrigerant circuit. The first pressure chamber is exposed to the pressure at the first pressure monitoring point. The second pressure chamber is exposed to the pressure at the second pressure monitoring point. The ball is displaced based on the pressure difference between the first pressure chamber and the second pressure chamber. The position of the valve body is determined based on the position of the pressure sensing member.

Abstract: A control valve is provided to be mainly used in a clutch-less compressor of the type in which displacement of the compressor is varied depending on the inclination of a drive plate which varies depending on the crank pressure. The control valve includes biasing means that applies force to a valve body, a force transferring member that urges the valve body to forcibly open the valve, and a solenoid assembly to actuate the force transferring member. The valve remains closed when no electric current is supplied to the solenoid assembly, regardless of the crank pressure or the suction pressure. This facilitates minimum displacement operation of the compressor for a desired period of time and therefore makes the valve suitable for a clutch-less type compressor that is directly connected to an engine with a belt and/or a pulley.

Abstract: ABSTRACT OF THE DISCLOSURE A control valve used in a variable displacement compressor includes a valve chamber, a valve body and a pressure sensing chamber. A pressure sensing ball is movably located in the pressure sensing chamber and divides the pressure sensing chamber into a first pressure chamber and a second pressure chamber. First and second pressure monitoring points are located in a refrigerant circuit. The first pressure chamber is exposed to the pressure at the first pressure monitoring point. The second pressure chamber is exposed to the pressure at the second pressure monitoring point. The ball is displaced based on the pressure difference between the first pressure chamber and the second pressure chamber. The position of the valve body is determined based on the position of the pressure sensing member.

Abstract: The solenoid valve (10) has an armature chamber (38) communicated with the outlets (86) of the valve to receive feed of fluid. The fluid in the chamber (38) is drained through drain passages (96) which are arranged to open into the chamber (38) at a location radially outwardly offset from the axis of the valve. The flow of fluid flowing into the chamber (38) is directly transferred to the drain passages (96) to thereby wash ferrous particles away from the magnetic gap to self-clean the gap each time the valve is opened. A spacer (62) made of a non-magnetizable material covers the upper end face of the armature (36) to prevent accumulation of ferrous particles.

Abstract: A control valve used in a variable displacement compressor. The valve includes a valve chamber having a valve hole. A valve body is accommodated in the valve chamber for selectively closing and opening the valve hole. An opening spring urges the valve body in a direction opening the valve hole. An actuator generates force in a direction closing the valve hole. A solenoid rod transmits the force of the actuator to the valve body. A pressure sensing chamber is defined independently from the valve chamber to receive refrigerant from a suction passage. A pressure sensing member is located in the sensing chamber for sensing the pressure in the sensing chamber. A pressure sensing rod transmits the pressure sensed by the sensing member to the valve body. A compression spring, a cap and stoppers maintain proper alignment of the pressure sensing member. The valve body is moved based on the refrigerant pressure sensed by the sensing member, the force of the spring and on the force of the actuator.