摘要:
The invention relates to a valve arrangement with a pressure limiting valve and a flow regulator valve, which comprises a flow regulator piston, having at least one first hydraulic resistor, distinguished in that the flow regulator valve's (5) flow regulator piston (15) has a split pressure return surface and in that the first part (ring surface (45)) of the pressure return surface is capable of working at a pressure p1 and a second part (annulus surface (31)) of the pressure return surface is capable of working at a pressure p2.
摘要:
In a variable displacement compressor of a piston type, a valve body (34) is movably placed adjacent to a main channel (32) communicating a suction port (26) with a suction chamber (24). The valve body is for variably controlling an opening area of the main channel. An air damper (38) is coupled to the valve body to damp vibration of the valve body. In addition, a bypass channel (39) is formed outside of the air damper to communicate the suction port with the suction chamber.
摘要:
A valve designed to limit inadvertent operation of the valve. The valve has a shortened plunger, a collar to prevent tilt of the plunger, and a conformable ring on the valve face. The plunger is provided with a groove sized and dimensioned to partially receive the inner surface of the ring.
摘要:
A high pressure fuel pump has a plunger that extends through a cylinder and is reciprocally located in a pressurizing chamber. The plunger is reciprocated by a lifter and changes the volume of the pressurizing chamber to pressurize fuel in the pressurizing chamber. A seal member seals the cylinder from the lifter to prevent fuel that leaks from the pressurizing chamber from being mixed with lubricant that lubricates the lifter. A support to which the seal member is attached is formed separately from the cylinder. The support is fixed to the cylinder with the plunger extending through the support.
摘要:
The invention relates to apparatus having a feed pump and scavenge pump arrangement and components for the same in an improved manner which allows an increase in efficiency of operation of the pumps and also, at the same time, improved ease of manufacture of the components. The feed and scavenge pump arrangements are provided in a common body which has a feed pump chamber and scavenge pump chamber connected to an oil reservoir and crankshaft and sump respectively by a series of bores which are shaped so as to allow connection with the same and also shaped to avoid conflict with fixing locations on the body of the apparatus.
摘要:
This present application discloses an improved valve configuration such that an indicator port is incorporated directly within the valve allowing a sensing device to be mounted directly to the valve or within the valve body, this application being directed to both suction and discharge valves which sense at least one condition within a compressor comprising a cylinder, a piston, at least one discharge valve, and at least one suction valve, the valve further including a valve guard, a valve seat, a hollow area adapted and configured for housing a sensing device and a sensing device disposed within the hollow area.
摘要:
A laboratory pump unit (1) for pipetting, filtering, and exhausting a gaseous or liquid fluid is provided. The laboratory pump unit (1) includes a pump (3), which can be connected on the suction side and/or the pressure side to a pipette (4) or other fluid receiver, for suctioning or ejecting the fluid. The laboratory pump unit includes, among other elements, a secondary tube (9, 10) that is connected to the suction tube and/or pressure tube (6, 7) that is connected to the pipette (4) or fluid receiver on the one hand and the pump (3) on the other hand, and is open to the atmosphere, and includes a throttle (11, 12) for limiting the amount of air drawn in or ejected. The laboratory pump unit (1) is operated in nullopennull pump operation on the suction side and pressure side with a precisely adjusted tube pressure in the suction tube or pressure tube (6, 7), which cannot be exceeded or fallen below by the pump (3).
摘要:
A diaphragm pump which overcomes the problem of diaphragm failure due to overfill of the oil transfer chamber. An overfill preventive element in the form of a mechanical stop, a fully closed coil spring, or a valve system, or alternatives are provided.
摘要:
An inflatable shoe with a deflation valve designed to limit inadvertent operation of the valve and thereby limit inadvertent deflation of the shoe. The deflation valve has a shortened plunger, a collar to prevent tilt of the plunger, and a conformable ring on the valve face. The plunger is provided with a groove sized and dimensioned to partially receive the inner surface of the ring.