Abstract: A first housing member and a second housing members are coupled to each other. A recess is formed in the second housing member to face the first housing member. An O-ring is accommodated in the recess. A block ring is located in the recess and extends along the O-ring. The block ring is closer to an unsealed space than the O-ring and is made of a high gas permeation resistance material. Therefore, even if the pressurized gas in a sealed space permeates the O-ring, the block ring prevents the gas from leaking to the unsealed space.

Abstract: A shaft sealing assembly is located in a suction chamber of a swash plate type compressor to seal the space between a drive shaft and a housing. A first end portion of the drive shaft is supported by a first radial bearing. A second end portion of the drive shaft is supported by a second radial bearing. The suction chamber is closer to the first end portion of the drive shaft than the first radial bearing is. An axial passage is formed in the drive shaft to connect the suction chamber to the crank chamber. An inlet of the axial passage is closer to the second end portion than the second radial bearing is. An outlet of the axial passage is closer to the second end portion than the first radial bearing is.

Abstract: In a seal structure of a compressor according to the present invention, two O-rings 6 and 7 are disposed at a joint portion between a front housing 2 and a cylinder block 3 constituting a housing of a compressor 1. The inner O-ring 6 uses a material excellent in mechanical and chemical properties (nitrile rubber), and the outer O-ring 7 uses a material excellent in gas permeation resistance (butyl rubber). The inner O-ring 6 has a greater diameter and the outer O-ring 7 has a smaller diameter.

Abstract: A lip type seal is provided with an outer ring part (31) which is tightly fitted to a seal installation part (12) of a housing (1); a seal main body (32) which is fixed to the outer ring part (31) and whose inner circumferential part extending in a bent state to the side of a sealed space (A) is sealably brought into slidable contact with an outer circumferential surface of a rotary shaft (2) inserted in the housing (1); a rear surface support plate (33) which is arranged on the rear side of the seal main body and whose outer circumferential part together with the seal main body (32) is fixed to the outer ring part (31); and a movable support plate (34) which is engaged movably in a radial direction between the seal main body (32) and the rear surface support plate (33) and whose inner diameter is clearance fitted to the outer circumferential surface of the rotary shaft (2).

Abstract: In a lip type seal, a case (31) is tightly fitted and fixed to an inner circumferential surface of a housing (1) through gasket means (32e). A resin lip member (33) constituted by an inner circumferential part (33c) extending in a bent state from a diameter direction part (33a) and its inner circumference to a sealed space (S1) side and forming a seal surface between an outer circumferential part of a rotary shaft (2) and the resin lip member (33); a rear surface support plate (36) disposed to abut on a rear surface of the diameter direction part (33a) of the resin lip member; and a stopper (37b) with a rear surface supported to a support surface (13) of the housing (1) through a second resin lip member (34) and a second rear surface support plate (38) and the top end coming close to or coming into contact with a rear surface of the inner circumferential part of the rear surface support plate 36, are provided on the inner circumference of the housing (1).

Abstract: A shaft seal provided with a front seal member, disposed on a fluid storing chamber side and having a lip end portion of rubber which slides on a rotation shaft in rotation state. And the shaft seal is provided with a rear seal member disposed on a low pressure side and having a lip end portion of rubber which contacts the rotation shaft in static state.

Abstract: A compressor includes a piston reciprocating in a cylinder bore. The piston draws refrigerant into and discharges refrigerant from a compression chamber, which is formed between the piston and a valve plate. The valve plate has a discharge port connecting the compression chamber to the discharge chamber. A guide passage facilitates the flow of the refrigerant from the compression chamber to the discharge port. The guide passage is defined in the compression chamber when the piston is located at the top dead center position. This decreases pressure losses that would otherwise occur when the piston is near the top dead center position.

Abstract: A compressor comprises a piston having a piston head and an engaging portion, said piston head being inserted into a cylinder bore, said engaging portion having a piston guide and a shoe seat in which a shoe is incorporated, wherein said shoe is engaged with a swash plate. The piston reciprocates in correspondence to rotation of the swash plate and the piston head compressing a refrigerant by the reciprocal movement. The piston guide protrudes outward from the surface of the piston head, extending over said shoe seat, being formed with dimensions exceeding the corresponding shoe seat and being caused to reciprocate along the inner wall surface of said housing in line with reciprocation of said piston.

Abstract: In a single-ended swash plate compressor, unbalanced thrust loads in either axial direction are reduced so that thrust loads acting on pistons in the direction of the front end are practically balanced by those in the direction of the rear end, for example, by connecting an intake chamber to a swash plate chamber by means of an adjustment valve to adjust the pressure in the swash plate chamber acting on the front end surfaces of the pistons to a suitable intermediate pressure by the action of the adjustment valve. In a single-ended swash plate compressor with pistons housed in both ends of a cylinder assembly comprising one set of pistons for guidance and another set for compression, discharge pressure is introduced into some of the cylinder bores housing guide pistons and intake pressure is introduced into the cylinder bores housing guide pistons into which discharge pressure is not introduced.

Abstract: In a single-ended swash plate compressor, unbalanced thrust loads in either axial direction are reduced so that thrust loads acting on pistons in the direction of the front end are practically balanced by those in the direction of the rear end, for example, by connecting an intake chamber to a swash plate chamber by means of an adjustment valve to adjust the pressure in the swash plate chamber acting on the front end surfaces of the pistons to a suitable intermediate pressure by the action of the adjustment valve. In a single-ended swash plate compressor with pistons housed in both ends of a cylinder assembly comprising one set of pistons for guidance and another set for compression, discharge pressure is introduced into some of the cylinder bores housing guide pistons and intake pressure is introduced into the cylinder bores housing guide pistons into which discharge pressure is not introduced.

Abstract: The present invention provides a thermal transfer image-receiving sheet with a dye receiving layer formed from a powder composition, the thermal transfer image-receiving sheet having a dye receiving layer which gives high-quality transfer images and has satisfactory printing sensitivity, as well as production process whereby the thermal transfer image-receiving sheet can be consistently obtained; the thermal transfer image-receiving sheet 1 has a dye receiving layer 3 formed from a powder composition composed mainly of a dye-tingible resin on a base 2 made of a paper, and the dye receiving layer 3 is formed to a substantial thickness of 7 &mgr;m or greater.

Abstract: An air conditioning system 100 may include a cooling circuit 151, a heating circuit 152 and a variable displacement compressor 101 as a driving source for both the heating and cooling circuits and may be utilized in a vehicle-mounted air conditioning system. In such case, the driving shaft 125 of the compressor 101 is connected to and driven by a car engine 170. In order to decrease the compressor output discharge capacity during an abnormally high pressure state, high-pressure refrigerant in the discharge chamber 120 is released into the driving chamber 110 to increase the driving chamber pressure. The high-pressure refrigerant can be released from the discharge chamber 120 into the driving chamber 110 utilizing a variety of different structures.

Abstract: A variable displacement compressor includes a rotary valve which can rotate synchronously with a drive shaft. The rotary valve includes a center hole with one end closed and with the other end in constant communication with a suction chamber, and a communicating hole intermittently provide a fluid communication between the center hole and a gas extracting passage extending from a crank chamber along with the rotation of the rotary valve. The amount of refrigerant gas flowing back from the crank chamber to the suction chamber through the gas extracting passage is reduced by exactly the amount of the refrigerant gas which can flow through the gas extracting passage unless it is closed by the rotary valve.

Abstract: A piston-operated refrigerant compressor provided with pistons fitted with piston rings and reciprocating in cylinder bores of a cylinder block having a central boss portion formed in an inner end face thereof confronting a crank chamber for receiving a cam or swash plate mounted on a drive shaft, and the central boss portion of the cylinder block defining therein a plurality of axially projecting lip portions formed at a portion of each bore end of the cylinder bore for permitting the diameter of the piston ring to be compressively reduced during inserting of the piston into the corresponding cylinder bore at the assembling stage of the refrigerant compressor either in cooperation with a piston-assembling jig provided with guide bores to promote a smooth insertion of each piston together with the piston ring into the corresponding cylinder bore or without cooperation of the piston-assembling jig.

Abstract: A thermal transfer-receiving sheet of the present invention comprise a substrate made of a plain paper and a receptor layer formed by applying, on the substrate, a powdery composition containing a dyeable resin. The receptor layer has a coated amount in a range of 6 g/m.sup.2 or more and 22 g/m.sup.2 or less, or alternately has a substantial thickness in a range of 7 .mu.m or more, which is defined by excluding a portion of the receptor layer infiltrating the substrate. A surface of the substrate may has physical properties in which a surface texture is in a range of 471 or less in terms of a roughness index, and a surface roughness is in a range of less than 2.1 .mu.m in terms of an arithmetical mean deviation of profile(Ra), less than 23.2 .mu.m in terms of a maximum height (Rmax) and less than 20.8 .mu.

Abstract: In a single-ended swash plate compressor, in which pistons are guided at both ends, the side clearance between the pistons and the cylinder bores on the guide side is made larger than the side clearance between the pistons and the said cylinder bores on the compression side. Preferably, this is approximately 2 to 10 times, that is approximately 10 to 100 .mu.m larger, or more preferably, 7 times larger.

Abstract: A servo acceleration sensor comprises a pendulum assembly composed of a pendulum made up of a torque coil provided on one side of a metal plate, a free end section from which the pendulum is suspended, a base end section, and a pair of plate springs connecting the free end section and the base end section, a permanent magnet placed away from the metal plate, a pendulum assembly support frame that supports the pendulum assembly with the base end section being secured, a displacement sensor that senses the displacement of the pendulum and outputs it in the form of an electric signal, and a sensing circuit that supplies power to the torque coil on the basis of the electric signal and thereby generates magnetic force to return the pendulum to the original position and also senses acceleration, wherein the free end section and the base end section are made of synthetic resin and the free end section, the base end section, the plate springs, and the metal plate are integrated into an entity.

Abstract: A picture processing apparatus is composed of an infrared ray sensor for producing an infrared picture in which a heat distribution of a measured area is recorded, a picture processing section for processing the infrared picture to extract pieces of personal characteristic data and environmental characteristic data from the infrared picture, and a picture information detecting section composed of a neural network for detecting pieces of personal information and environmental information according to the characteristic data. To be concrete, one or more human-areas respectively recording one or more persons are picked out from the infrared picture, and representative points of the human-areas, the number of human-areas, the number of pixels in each of the human-areas and shapes of the human-areas are extracted as the personal characteristic data.

Abstract: A liquid container with a spout is disclosed. A composite sheet for the container body comprises an innermost layer of a low-smelly and low-adsorbent resin and an outermost layer of a polyolefine resin. A sealing film comprising a liquid-contacting layer and a sealing layer both made of the low-smelly and low-adsorbent resin seals a spouting hole in the container body from inside the container body. The container body and the spout sandwich a connecting film and a spout-attached film. The connecting film has a hole in alignment with and adjoining the hole in the container body. The connecting film comprises an innermost layer of a polyolefine resin and an outermost layer of the same resin as the innermost resin of the container body. The connecting film is heatsealed to the outermost layer of the container body. The spout-attached film has a hole in alignment with and adjoining the hole in the container body. The hole in the spout-attached film has a smaller diameter than the hole in the container body.

Abstract: The present invention proposes a system, comprising intelligent switches (1-9), which are embedded on wall surface near entrance on each floor, possessing display unit with touch panel on the front, displaying and outputting the selection menu and the information from the display screen, an information processing unit (10) connected with each of the intelligent switches through the communication line and sending, receiving and processing the information, and the regulatory systems (35-37) in the building. The control signals of the regulatory systems (35-37) in the building are input and the information from the information processing unit (10) is output by the display plate with touch panel (6) of the intelligent switch. According to this system, it is possible to install the intelligent switch system by embedding it in the wall surface near an entrance on each floor, to offer the necessary information such as messages, news, information, etc. and to control the regulatory systems in the building.