摘要:
A purpose is to obtain a brake hydraulic pressure controller and a method for manufacturing a brake hydraulic pressure controller that realize suppression of manufacturing cost and downsizing of the brake hydraulic pressure controller and simplification of a manufacturing process.The brake hydraulic pressure controller 1 has: a base body 10 formed with a channel of a hydraulic fluid; plural hydraulic pressure regulating valves 3 provided in the channel; and plural drive coils respectively provided in the plural hydraulic pressure regulating valves 3 and driving the hydraulic pressure regulating valves 3. One end section 15B that constitutes one end side of the drive coil 11 is adhered to an adhesive surface section that constitutes a contour of the base body 10 via a first adhesive member 17A.
摘要:
The present invention aims at providing a new electro-hydraulic control terminal adopting modularized and configured cartridge valve RHCV. It has obvious advantages of hybrid combination and flexible customization when RHCV is applied in the independent control terminals based on “single loop resistance” to control hydraulic actuators including distributed cylinders and motors. It can follow the rules that functional diversities as many as possible can be achieved through technical diversities as few as possible, thus producing a new generation of electro-hydraulic product family and platform to meet the needs of customers.
摘要:
A safety system for bypassing counter balance valves of a catwalk hydraulic cylinder from a remote location in a safe and controlled manner. Oil from a base end of the hydraulic cylinder is routed around the counter balance valves and flows through a velocity fuse to a needle valve, a check valve, and a pump outlet.
摘要:
A valve opening-closing timing control device includes a solenoid valve having a solenoid mechanism provided with a spool having an oil path groove formed in an outer face thereof, and a sleeve for housing the spool to reciprocate and slide. A wall surface of the sleeve has a first port communicating with a first hydraulic oil supply section, a second port communicating with a second hydraulic oil supply section, and a third port communicating with the side of a hydraulic oil supply source. The spool is driven and set to a first position for supplying hydraulic oil from the hydraulic oil supply source to the first port, a second position for supplying the hydraulic oil from the hydraulic oil supply source to the second port, and a third position outside an area between the first and second positions to prevent supply of hydraulic oil from the first and second ports.
摘要:
A valve device for influencing a fluid supply of fluid-operated loads, includes a valve module with a valve housing in which valve shafts are formed to accommodate valve cartridges, and further includes valve cartridges located in the valve shafts, wherein each of the valve shafts together with the valve cartridges accommodated therein bounds a pressure chamber connected to an assigned inlet port in a fluidically communicating manner, and wherein each of the valve cartridges includes two electrically selectable valve means which are designed to influence a free flow cross-section between the pressure chamber and an outlet port assigned to the respective valve means.
摘要:
An actuator (10) for use in installing or extracting piles and the like has a common member (12) supported at (14) and having jaws (16) for gripping a pile. Within the block (12) a double-acting piston (18) is located alongside a space (20) for a control valve arrangement which provides hydraulic fluid, in various ways described, to create vibratory or impact forces from the piston (18). The piston and the valve arrangements are both removable and replaceable by alternatives, to modify the mode of operation of the actuator (10).
摘要:
A rotary cylinder assembly for a machine tool is provided that includes a lock check system that locks the work piece to the machine tool chuck and prevents extension and retraction of the work piece in the event of loss of hydraulic or pneumatic pressure. The rotary cylinder assembly includes a shaft end cover coupled between a fluid shaft housing and a cylinder body. The shaft end cover houses the lock check system and includes a number of flow paths that provide for extension and retraction of a piston rod connector housed in the cylinder body in response to fluid pressure supplied from the fluid shaft housing. The shaft end cover and lock check system are configured to allow small diameter cylinder bodies to be coupled thereto while providing the safety and functional features associated with the lock check system.
摘要:
A valve system for the pre-engagement unit of a vehicle braking pressure modulator contains solenoid valves, which are controlled by an electronic braking system. Pneumatic pressure is fed into a brake cylinder on the vehicle wheels via a pressure regulating channel of the pre-engagement unit. The solenoid valves are configured as cartridge solenoid valves, so that assembly is simplified, and utilization of elastic tolerance compensating elements is unnecessary. A preferred embodiment includes three cylinder bodies connected end-to-end with no increase in cylinder diameter. This embodiment enables the use of identical armatures and identical magnet coils for different valve types, such as 3/2-way solenoid valves or 2/2-way solenoid valves. Also, these valves may be configured as normally open or normally closed, with identical outside dimensions. As such, three cartridge solenoid valves can be combined into a compact triple valve cartridge unit that further simplifies the assembly process.
摘要:
A miniature solenoid valve comprising: a valve body; an electromagnet having a yoke secured to the body and a plunger core movable relative to the yoke along a longitudinal axis of the electromagnet; a pneumatic chamber formed in the body adjacent to the end of the plunger core that faces away from the yoke, into which chamber there opens out freely a first duct and, each via a respective seat, second and third ducts, with the openings of the second and third ducts facing in opposite directions and being coaxial about the longitudinal axis of the electromagnet; and first and second valve members facing the two seats respectively with clearance, the first valve member being carried by the plunger core and the second valve member being carried by moving equipment held in contact with the plunger core so as to be moved therewith, in which the two seats are provided at respective ends of a single seat-carrier piece which includes internally the ends of the second and third ducts, said piece being engaged in the body of the valve along the common axis of the electromagnet and the two seats, and being immobilized in a precise position along said axis and specific to each valve.
摘要:
A screw-in cartridge valve for the employment in the field of high pressure hydraulic includes a valve housing having an exterior screw-in thread section extending between a low pressure or ambient pressure area and a high pressure area, said valve housing comprising a pressure balance path connecting both pressure areas with one another. In a screw-in cartridge valve assembly including a basic body having a threaded bore for said valve housing of said screw-in cartridge valve and including a sealing ring in said low pressure or ambient area activated by means of the thread tightening tension between both pressure areas at least one pressure balance path is provided by means of which the pressure acting in the high pressure area on said exterior thread section is transmitted into the low pressure or ambient pressure area of said exterior thread section.