Valves, internal combustion engines including such valves, and methods of on-board diagnostic leak detection for a crankcase ventilation system using such valves are disclosed. Each valve has a housing defining a first port and a second port in fluid communication with one another and defining a valve seat therebetween. A biasing member biases a poppet sealing member into a normally open position (defining unrestricted flow through the valve) and a commanded actuator is connected to the poppet sealing member. The poppet sealing member has an orifice therethrough defining a restricted flow path, and, upon command, the commanded actuator moves the poppet sealing member from the open position to a restricted flow position in which the poppet sealing member is seated against the valve seat for restricted flow thorough the orifice in the poppet sealing member.

The present invention relates to a valve for a system for spraying a cleaning liquid, said valve comprising: —a valve body including a hydraulic cavity configured to be fluidically connected to a hydraulic channel of the spray system and intended to receive the cleaning liquid, —a plunger configured to be displaced in the hydraulic cavity between an open position, in which it allows the cleaning liquid to enter the hydraulic channel, and a closed position, in which it prevents the passage of the cleaning liquid through the hydraulic channel, —a compressible elastic element containing a gas disposed in the hydraulic cavity and configured to be compressed if the cleaning liquid in the valve freezes.

A valve device includes a body, a solenoid valve, and a manual valve mounted to the body. The manual valve being configured to open and close the gas flow channel via a manual operation. The gas flow channel includes a first flow channel including the valve-side opening portion, and a second flow channel including the tank-side opening portion, and includes an intersection portion in which a first center axis that is a center axis of the first flow channel and a second center axis that is a center axis of the second flow channel intersect with each other. A center axis of the solenoid valve coincides with an extension line of the first center axis and a center axis of the manual valve coincides with an extension line of the second center axis.

To provide an electromagnetic valve that can prevent damage due to wear of a valve element and a case of a solenoid, or occurrence of a striking sound when a valve is opened. An electromagnetic valve includes a solenoid having a case, a flow path member, and a columnar valve element that is housed in the valve element housing portion of the flow path member and moves with a plunger of the solenoid to open and close a flow path. A first seat member in contact with the plunger is disposed on the valve element, and a second seat member in contact with the plunger is disposed on the case of the solenoid. An elastic modulus of the first seat member is larger than an elastic modulus of the valve element, and an elastic modulus of the second seat member is smaller than an elastic modulus of the case.

Two problems with existing electronically controlled mixing valves for domestic use is their size and difficulty accessing and repairing them. Their size means that they often become hidden behind wall linings, and because of the way in which they are plumbed into the pipework of a house, they are difficult to access and remove for repair or replacement. Disclosed is a compact and replaceable mixing valve cartridge that can be mated to a fixed fitting that is permanently plumbed into the pipework of a house. The compact size allows the cartridge to be positioned behind the type of removable face plates that are often installed over existing manually operated mixing valves. Simplified valve actuators and a compact mixing and temperature sensing configuration have facilitated the compact size. The valve cartridge can simply be accessed, unbolted and removed, without the need for extensive plumbing re-work.

A pressure regulation valve including a multiplicity of function modules, preferably pre-mounted function modules, with a pilot stage module and an actuator module, which are firmly interconnected via a press connection, preferably exclusively a press connection, and which preferably have a central axis. A shock absorber with at least one pressure regulation valve.

A valve for metering a fluid, including an electromagnetic actuator and a valve needle which is actuatable by an armature of the actuator and used to actuate a valve closing body which cooperates with a valve seat surface to form a seal seat. The armature is movably guided at the valve needle in the process. A stop element connected to the valve needle limits a relative movement between the armature and the valve needle in connection with an actuation of the valve needle. At least one elastically deformable spacer element is provided between the armature and the stop element, which, during the limitation of the relative movement between the armature and the valve needle at the stop element, encloses an attenuation space provided between a front face of the armature and a stop element surface of the stop element facing the front face of the armature.

The invention relates to a shut-off valve (1) for a pressurized-gas vessel, comprising a valve closing body (2) which can perform stroke movements and which is preloaded by the spring force of a closing spring (3) against a valve seat (4), such that, when the valve closing body (2) is in a closed position, a connection of a valve inlet (5) to a valve outlet (6) is shut off, and furthermore comprising an actuator arrangement (7) for opening the valve closing body (2). According to the invention, the actuator arrangement (7) interacts with an actuating element (8) which is arranged spaced apart from and coaxial with respect to the valve closing body (2) and which is movable by means of the actuator arrangement (7) in the direction of the valve closing body (2), such that, when the actuating element (8) abuts against the valve closing body (2), an opening impulse can be generated. The invention furthermore relates to a pressurized-gas vessel having a shut-off valve (1) according to the invention.

A pressure relief valve configured to vent a pressurized tank in the event of a fire is provided. The pressure relief valve includes a body, a vent passage, a plug and a latch. The vent passage is disposed through the body. The vent passage can be placed in fluid communication with an internal volume of a tank and with the atmosphere. The plug is moveably mounted in the vent passage. The latch has a blocking member disposed in contact with a control end of the plug in a first configuration and out of contact with the control end in a second configuration. The second configuration allows movement of the plug in the vent passage. One or both of a shape memory alloy wire and a trigger piston is configured to actuate the latch from the first to the second configuration. The shape memory alloy wire is configured to shorten when exposed to a temperature above a threshold temperature. The trigger piston moves, e.g., by a pressurized gas, in a trigger actuation passage to actuate the latch from the first configuration to the second configuration.

A coolant valve for a motor vehicle. The coolant valve includes a housing with an inlet and an outlet, a valve seat which surrounds a flow cross-section formed between the inlet and the outlet, and a control body which is placeable on and liftable off the valve seat via an actuator. The control body has through-going bores via which the inlet is continuously connected to a chamber on a side of the control body which faces away from the inlet, a first annular protrusion which axially extends towards the valve seat and via which the control body is placed on the valve seat, a wall which extends radially between the first annular protrusion and the through-going bores, and an axial groove which extends in a circumferential direction and which is delimited radially to an outside by the first annular protrusion and radially to an inside by the wall.