Abstract:
A closure for the filling opening (3) of a container (1) containing a pressure medium, in particular the filling opening of a vapour pressure sensor for the expansion valve of the evaporator of a refrigeration system, contains a first closure member (6) secured to form a seal, especially by means of a press fit, in the filling opening (3). In many applications, however, the closure is neither adequately sealed nor adequately strong. To solve that problem, a second closure member (7) is secured in front of the outside of the first closure member (6; 6a) to form a seal at the filling opening (3).
Abstract:
A container device (1) for storing media, comprising a plurality of inner containers (4) and an outer container (2), which is adapted to receive the inner containers and is provided with means (4) for enabling filling and/or emptying of at least one inner container, characterized in that the inner containers (4) comprise a row of interconnected bags (4, 6, 7) manufactured from foil (12) , and that at least one wall (2a) of the outer container is provided with at least one opening (5) through which outer connection to at least one bag is enabled.
Abstract:
A hydraulic axial piston machine (1) is disclosed, having a cylinder drum (3) with at least one cylinder (4), in which a piston (5) is arranged to move back and forth, which piston bears by way of a slider shoe (7) against a swash plate (8), wherein a pressure plate (9) is provided which holds the slider shoe (7) in contact with the swash plate (8) and is supported against the cylinder drum (3) by way of a ball-and-socket joint (10) comprising a ball-like body (12) and a counterpart (13). In such an arrangement, one would like to avoid weakening the pressure plate by the ball-and-socket joint. To that end, a part of the ball-and-socket joint (10) is provided with a supporting surface (17) which extends substantially parallel to the surface of the pressure plate (9) and by means of which this element (12) lies in face-to-face contact with the pressure plate (9).
Abstract:
A piston with a slide shoe is described for a hydraulic piston engine, where the piston is designed with a ball socket, and where the slide shoe is provided with a corresponding ball head, whereby these are connected in a ball-and-socket joint, and where the ball head of the slide shoe is designed as a unit moulded into the ball socket in friction reducing material of uneven material thickness. Hereby an improved fixation of the moulded-on ball head on the slide shoe is achieved.
Abstract:
A valve (1) is disclosed having a closure member (4) which co-operates with a valve seat (3) and is movable by an actuating device with a driver element (5), which driver element is guided in a housing (2). It is desirable for such a valve to operate reliably and have a long service life. For that purpose, a high-temperature thermoplast (6) is arranged between the housing (2) and the driver element (5).
Abstract:
An apparatus and a method for feeding a sample into a sample channel (20) are disclosed, the apparatus having a source for a carrier fluid. It is here desirable for the sample to be introduced into the sample channel in such a manner that as little reagent as possible is required during an analysis in the sample channel. For that purpose, the sample channel (10) is connected to a sample outlet (9) and the source of the carrier fluid is connected to a carrier inlet (8) of a change-over valve (7) which comprises a first channel (33), which in a first position connects the carrier inlet (8) to the sample outlet (9), and a second channel (34), which in this first position connects a sample inlet (19) to a waste outlet (21), wherein in a second position the first channel (33) connects the sample inlet (19) to the waste outlet (21) and the second channel (34) connects the carrier inlet (8) to the sample outlet (9).
Abstract:
In a device for controlling the pressure to be supplied to a hydrostatic steering unit (1) by means of a control signal (s), thereis a rotary slide valve arrangement, one slide valve element of which is rotatable by means of a steering means (5) and the other slide valve element of which is corrected by means of a measuring motor (16). Together with a series throttle (AV), a control throttle (AS) forms a series circuit independent of the intake path of the steering motor (4), which circuit is connected between a pressure source (CF) and the tank (6). The control throttle (AS) has a closing characteristic that extends substantially across the entire working range of the angle of rotation of the slide valve elements. The control signal (s) is tapped between the series throttle (AV) and the control throttle (AS). This provides a pressure control that is independent of load.
Abstract:
A valve with an inlet and an outlet is disclosed, between which there are arranged a valve seat element (5), which surrounds a duct (8), and a closure element (6), which is arranged to be loaded with a controlling force in the direction in which it engages with the valve seat element (5). It is desirable for such a valve to be used also for fluids having a relatively low boiling temperature, for example, water, and to be able to withstand high pressures and high flow speeds. To that end, the closure element (6) has a closure face (11) running substantially at right angles to the direction of flow, which face lies in a contact zone adjacent to the valve seat element (5), the closure element (6) beyond the closure face (11) having a bevelled sloping face (13) which forms a predetermined first angle (W1) with the closure face (11), and the valve seat element (5) beyond the contact zone having a bevelled lateral face (19) which forms a predetermined second angle (W2) with the axis (10) of the duct.
Abstract:
Hydraulic piston engine such as a radial piston motor which is driven by a lubricant-free, water-based pressure fluid. The drive shaft (6) is made of steel and is supported by radial journal bearings placed in bearing bushings (9) fabricated from a plastic material. The drive shaft is at a stationary, static high load area provided with a hydrostatic bearing supporting and cooling pressure fluid pocket in a recess (12). By this is obtained a hydraulic piston motor of the said type which works reliable at all operating conditions, even at high loads and high rotational speeds.
Abstract:
A factory plant or machine or machine plant for processing foodstuffs. The heat load of refrigerated rooms in foodstuff factories is reduced by replacing electro-motors in machine plant with water-driven, hydraulic motors, which are inserted in a water supply circuit, which can lead heat out of the refrigerated room.