A hydraulic tank for a machine is disclosed herein. The hydraulic tank includes a casing defining an interior space and having an outer surface, an inner surface opposite the inner surface, and a return hydraulic fluid inlet extending through the casing. A first concave member is connected to the inner surface of the casing to form a passage. The passage is positioned and shaped to transport hydraulic fluid from the return hydraulic fluid inlet to another location within the hydraulic tank.

Control valves and cages that are adapted to reduce flashing and cavitation. A cage for use with a control valve having an inlet, an outlet, and defining a flow passage between the inlet and the outlet. The cage includes a generally cylindrical body and having a central bore, an upper portion, and a lower portion and an inner wall, an outer wall, and an intermediate wall disposed between the inner wall and the outer wall. The inner wall includes an inlet opening and the outer wall including an outlet opening. The inner wall, the outer wall, and the intermediate wall cooperate to define a portion of the flow passage that extends from the inlet opening, through the cage along the inner wall, along the intermediate wall, past a terminal portion of the intermediate wall, along the outer wall, to the outlet opening.

A hydraulic unit includes a tank configured to be filled with a hydraulic fluid. The tank has at least one inflow connection and at least one outflow connection. A flow guide for the hydraulic fluid is formed between the inflow connection and the outflow connection. The flow guide is configured to have at least two 180° flow arcs configured to cool and calm the hydraulic fluid and to avoid dead zones.

An apparatus for simulating fluid loss through diverging fracture fronts includes a housing including an inlet and an outlet. The housing defines an inner volume. The housing can receive and sealingly retain fluid in the inner volume. The housing includes a plate defining an opening formed in an axial surface of the plate. The opening spans a longitudinal thickness of the plate and diverges in dimension along the longitudinal thickness of the plate. The plate is sealingly positioned within the inner volume of the housing between the inlet and the outlet to permit fluid flow from the inlet to the outlet through the opening and to prevent the fluid flow past a circumferential surface of the plate. The apparatus includes a fluidic pressure source fluidically coupled to the housing and configured to flow the fluid through the housing.

A hydraulic tank for a machine is disclosed herein. The hydraulic tank includes a casing defining an interior space and having an outer surface, an inner surface opposite the inner surface, and a return hydraulic fluid inlet extending through the casing. A first concave member is connected to the inner surface of the casing to form a passage. The passage is positioned and shaped to transport hydraulic fluid from the return hydraulic fluid inlet to another location within the hydraulic tank.

A fuel tank system controlled by a control module and constructed in accordance to one example of the present disclosure includes a saddle fuel tank, and a venting assembly. The saddle fuel tank has a first lobe and a second lobe extending on opposite ends of a recessed central portion. The venting assembly comprises a first vent line, a second vent line and a rotary actuator. The first vent line has a first vent port located in the first lobe of the saddle fuel tank near a top portion of the saddle fuel tank above the recessed central portion. The second vent line has a second vent port located in the second lobe of the saddle fuel tank near a top portion of the saddle fuel tank above the recessed central portion.

A fuel tank system constructed in accordance to one example of the present disclosure includes a saddle fuel tank, a control module, a first and second solenoid, and a first and second vent line. The saddle fuel tank can have a first lobe and a second lobe. The first vent line can have a first vent port located in the first lobe of the saddle fuel tank. The first solenoid is configured to open and close the first vent port. The second vent line can have a second vent port located in the second lobe of the saddle fuel tank. The second solenoid is configured to open and close the second vent port. The control module sends a signal to the first and second solenoids to close the first and second vents upon reaching a full fuel condition.

Various techniques are provided for an energy absorbing fluid bladder. In one example, the fluid bladder includes a bladder body and a perforated baffle structure. The perforated baffle structure can be disposed within the bladder body and configured to mitigate a pulse of fluid (e.g., fuel) moving within the bladder body before the pulse reaches the bladder body. Related methods are also disclosed.

A hydraulic unit includes a tank configured to be filled with a hydraulic fluid. The tank has at least one inflow connection and at least one outflow connection. A flow guide for the hydraulic fluid is formed between the inflow connection and the outflow connection. The flow guide is configured to have at least two 180 flow arcs configured to cool and calm the hydraulic fluid and to avoid dead zones.

An apparatus for simulating fluid loss through diverging fracture fronts includes a housing including an inlet and an outlet. The housing defines an inner volume. The housing can receive and sealingly retain fluid in the inner volume. The housing includes a plate defining an opening formed in an axial surface of the plate. The opening spans a longitudinal thickness of the plate and diverges in dimension along the longitudinal thickness of the plate. The plate is sealingly positioned within the inner volume of the housing between the inlet and the outlet to permit fluid flow from the inlet to the outlet through the opening and to prevent the fluid flow past a circumferential surface of the plate. The apparatus includes a fluidic pressure source fluidically coupled to the housing and configured to flow the fluid through the housing.